CA1316886C - Adjustable stand for supporting a lamp housing - Google Patents
Adjustable stand for supporting a lamp housingInfo
- Publication number
- CA1316886C CA1316886C CA000569788A CA569788A CA1316886C CA 1316886 C CA1316886 C CA 1316886C CA 000569788 A CA000569788 A CA 000569788A CA 569788 A CA569788 A CA 569788A CA 1316886 C CA1316886 C CA 1316886C
- Authority
- CA
- Canada
- Prior art keywords
- arm
- friction plates
- adjustable stand
- friction
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
- F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2021—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/26—Pivoted arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/04—Balancing means
- F16M2200/044—Balancing means for balancing rotational movement of the undercarriage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/06—Arms
- F16M2200/068—Arms being part of the undercarriage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An adjustable stand comprising a base with a pair of upstanding, spaced parallel friction plates having an upstanding arm with a lower end pivotally attached between the friction plates and an upper end connected to a supported load. The lower end of the arm has a friction member adapted to engage the friction plates. A counterbalancing tension spring extends between the arm and the base to substantially balance the weight of the arm and the supported load whereby the counterbalancing spring and the friction member act to ensure that the upstanding arm with its supported load will remain at any position to which the upstanding arm is pivoted.
An adjustable stand comprising a base with a pair of upstanding, spaced parallel friction plates having an upstanding arm with a lower end pivotally attached between the friction plates and an upper end connected to a supported load. The lower end of the arm has a friction member adapted to engage the friction plates. A counterbalancing tension spring extends between the arm and the base to substantially balance the weight of the arm and the supported load whereby the counterbalancing spring and the friction member act to ensure that the upstanding arm with its supported load will remain at any position to which the upstanding arm is pivoted.
Description
~ 7715-1 ADJUSTABLE STAND FOR SUPPORTING A LAMP HOUSING
This invention relates to an adjustable stand particularly useful for supporting a lamp housing.
Adjustable stands for supporting lamps and the like are well known. A popular style of desk lamp in common use today comprises a heavy base with an upwardly extending arm comprising an elongated parallelogram pivotally mounted to the base. A lamp housing comprising a lamp shade with a bulb socket is attached to the upper shorter side of the parallelogram. Two tension springs extend across the parallelogram on opposite sides of the arm to counterbalance the weight of the lamp housing and the arm. One can change the position of the lamp housing by exerting a gentle pressure on the arm. The adjusted position remains stable without involving -the use of locking devices.
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Numerous other types of adjustable stands for use with lamp housing exist. Examples of these structures can be ~ found in the following patents:
:
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. . . . .
.U.S. Patent 2,133,923 to Perlmutter 1 3 ~ ~ $
U.S. Patent 3,652,848 to Miller et al U.S. Patent 2,242,303 to Irmischer German OS 31 01 367 German OS 21 48 093 German OS 32 08 805 German OS 30 03 217 German OS 27 42 781 German OS 25 35 607 British Patent 1,547,389 Swiss Patent 543,704 European Patent Application 009,303 A1 The present invention provides an adjustable stand for supporting a lamp housing and the like that uses the counterbalanced design of the conventional parallelogram desk lamp. However, the present invention uses a simpler construction that requires ~ewer parts so as to be : cheaper to manufacture. In addition, the adjustable stand of the present invention provides a le~s cluttered and more streamlined shape.
Accordingly, the present invention is an adjustable stand comprising:
a base with a pair of upstanding, spaced parallel friction plates;
a single upstanding arm that extends between said parallel friction plates with a lower end pivotally : 2 ~' ~
`: : :
. . .
,` . ' ~ 3 ~
attached between said friction plates and an upper end connected to a supported load, the lower end of said arm being dimensioned to permit pivotal movement between said friction plates and having a friction member comprising a enlarged sleeve fitted about said arm and dimen~ioned such that said sleeve is tightly and movably held between said friction plates;
counterbalancing means extending externally of said arm between qaid arm and said base to substantially balance the weight of ~aid arm and said supported load;
whereby said counterbalancing means and said friction member act to ensure that said upstanding arm with its supported load will r~main at any position to which said upstanding arm is adjusted.
In a first embodiment, the adjustable stand uses a single counterbalanced arm to support a lamp housing.
In a second embodiment, a second coounterbalanced arm supporting a lamp housing is pivotally attached atop a first counterbalanced arm creating a lamp with a wide variety of adjustable positions.
Various embodiments of the present invention are shown in the accompanying drawings, in which:
Figure 1 is a pictorial view of the adjustable stand ; of the present invention with a single counterbalanced arm supporting an attached lamp housing.
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Figure 2 is a pic-torial view of a second embodiment of the present invention using two counterbalanced arms to support an attached lamp housing.
Figure 3 is a sectioned view of the connection between the base and the lower arm of the adjustable stand of Figures 1 and 2.
Figure 4 is a sectioned view of the connection between the first arm and the second arm of Figure 2.
Figure 5 is a sectioned view showing the connection of a tension spring with an arm.
Referring to Figure 1 of the drawings, there is shown a first embodiment of the adjustable stand of the present invention comprising a relatively massive base 1 and a pivotable counterbalanced arm 2 supporting a lamp housing of conventional construction including a shade 7 within which is mounted a socket assembly (not shown) having a switch 8. The lamp housing is attached to the upper end of arm 2 by a bracket 6 which allows for pivoting of shade 7 about point 30.
Attached to base 1 is a pair of upstanding, spaced parallel plates 4 and 5. As best shown in Figure 3, arm 2 : extends into the space between plates 4 and 5 and is ,`
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pivotally mowlted about pin 3 which extends perpendicularly between the plates. If desired, a mounting bracket 21 attached to base 1 by screw 22 c~n be used to support the lower end of arm 2. Plates 4 and 5 are also interconnected by adjustment means comprising threaded fasteners ~0 and 11.
A tension spring 9r having one end hooked a~out fa~tener 11 and its opposite end hooked into arm 2, acts to counterbalance the weight of the lamp housing and the arm such that the stand will remain in any position tu which it is ad~usted. In addition, to assist in maintaining an adjusted position, arm 2 is fitted with a fric-tion memher comprising sleeve 23 that engages the inner edges of plates 4 and 5 so as to provide a relatively tight but movable friction fit. Sleeve 23 may be a single piece or may be constructed from two U-shaped pieces 24 and 25 as ~hown in Figure 4.
Preferably, arm 2 of the adjustable stand is a hollow tube of square cross-section. Such a shape allows wire 12 of : the lamp housing to be led through the interior of arm 2 to pro~ide a neat appearance and avoid possible entanglement of the wire. In this regard, as shown in Figure 5, tension spring 9 is attached to arm 2 using hook 26 in slot 27 formed in the arm so that the interior of the arm i~ left open for passage of wire 12.
' -In use, the friction between slee~e 23 and friction plates 4 and 5, and the force of tension spring 9 cause arm 2 .
' to remain at the position to which it is moved. A slight force is all that is required to move the arm to a new position. Screw faqteners 10 and 11 provide stops to limit the range of motion of arm 2. In addition, fasteners lO and 11 can be tightened or loosen in order to adjust the distance between friction plates 4 and 5 so as to vary the force needed to move arm 2. It should he emphasized tha-t fasteners 10 and 11 are not used to lock the arm into a fixed position, rather they provide a means to vary the applied force necessary to move the arm~
Figure 2 ~how~ a second embodiment of the present invention that includes a second counterbalanced arm 13 mounted to the upper end of arm 2. The lower arm of the embodiment of Figure 2 is identical to the arm of Figure l and is attached to base 1 in an identical manner.
At the upper end of the lower arm 2, there are mounted a second pair of friction plates 14 and 15 between which is pivotally mounted arm 13 at pin 19. The opposite end of arm 13 supports a conventional lamp housing at bracket 32.
Figure 4 provides a detailed view of the joint between arm 2 and arm 13. Friction plates 14 and 15 are attached to : ~
arm 2 by screw~ 16 and 17. Threaded fastener 18 extends perpendicularly between the plates and serves a variety of ` functions. The fastener provides an anchor point for tension 2~ spr~ng 20 x~ending between the fric-tion plates and arm 13.
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As in the embodiment of Figure l, spring 9 is attached to arm 13 in an identical manner using a hook 26. Fastener 18 also acts as adjustment means to vary the distance between the plates in order to vary the frictional force on arm 13. In addition, fastener 18 acts as a stop to limit -the movement of arm 13 in a range defined by fastener 18 and lower arm 2.
A friction member comprising a sleeve composed of two U-shaped members 24 and 25 is fitted about arm 13 to provide frictional engagement with plates 14 and 15.
As in the previous embodimen-t, arm 13 is preferably formed from a hollow member so that wire 12 can be contained therein. At the joint shown in Figure 4, the pivotally connected end of arm 13 is provided with aperture 34 to allow wire 12 access to the interior of the arm.
The illustrated embodiments of the present invention are shown attached to base 1. However, it will be understood that the adjustable stand structure of the present invention is not limited to such a base structure and may also be used with a base compri.sing a bracket or clamping member for attachment to a desk, wall or other surface.
Furthermore, while the illustrated embodiments show the : adjustable stand of the present invention being used with a ~ lamp housing, it will be understood that the stand can be ~, ' & $ ~? 3~s used to suppor-t other assorted loads such as a microphone or magnifying glass.
Although the present invention has been described in some detail by way of example for purposes of clarity and understanding, it will be apparent that certain chan~es and modifications may be praticed within the scope of the appended claims.
.
,~
.
.
' ~ ~
This invention relates to an adjustable stand particularly useful for supporting a lamp housing.
Adjustable stands for supporting lamps and the like are well known. A popular style of desk lamp in common use today comprises a heavy base with an upwardly extending arm comprising an elongated parallelogram pivotally mounted to the base. A lamp housing comprising a lamp shade with a bulb socket is attached to the upper shorter side of the parallelogram. Two tension springs extend across the parallelogram on opposite sides of the arm to counterbalance the weight of the lamp housing and the arm. One can change the position of the lamp housing by exerting a gentle pressure on the arm. The adjusted position remains stable without involving -the use of locking devices.
'~
Numerous other types of adjustable stands for use with lamp housing exist. Examples of these structures can be ~ found in the following patents:
:
, .~ , ~' . .
::
. . . . .
.U.S. Patent 2,133,923 to Perlmutter 1 3 ~ ~ $
U.S. Patent 3,652,848 to Miller et al U.S. Patent 2,242,303 to Irmischer German OS 31 01 367 German OS 21 48 093 German OS 32 08 805 German OS 30 03 217 German OS 27 42 781 German OS 25 35 607 British Patent 1,547,389 Swiss Patent 543,704 European Patent Application 009,303 A1 The present invention provides an adjustable stand for supporting a lamp housing and the like that uses the counterbalanced design of the conventional parallelogram desk lamp. However, the present invention uses a simpler construction that requires ~ewer parts so as to be : cheaper to manufacture. In addition, the adjustable stand of the present invention provides a le~s cluttered and more streamlined shape.
Accordingly, the present invention is an adjustable stand comprising:
a base with a pair of upstanding, spaced parallel friction plates;
a single upstanding arm that extends between said parallel friction plates with a lower end pivotally : 2 ~' ~
`: : :
. . .
,` . ' ~ 3 ~
attached between said friction plates and an upper end connected to a supported load, the lower end of said arm being dimensioned to permit pivotal movement between said friction plates and having a friction member comprising a enlarged sleeve fitted about said arm and dimen~ioned such that said sleeve is tightly and movably held between said friction plates;
counterbalancing means extending externally of said arm between qaid arm and said base to substantially balance the weight of ~aid arm and said supported load;
whereby said counterbalancing means and said friction member act to ensure that said upstanding arm with its supported load will r~main at any position to which said upstanding arm is adjusted.
In a first embodiment, the adjustable stand uses a single counterbalanced arm to support a lamp housing.
In a second embodiment, a second coounterbalanced arm supporting a lamp housing is pivotally attached atop a first counterbalanced arm creating a lamp with a wide variety of adjustable positions.
Various embodiments of the present invention are shown in the accompanying drawings, in which:
Figure 1 is a pictorial view of the adjustable stand ; of the present invention with a single counterbalanced arm supporting an attached lamp housing.
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Figure 2 is a pic-torial view of a second embodiment of the present invention using two counterbalanced arms to support an attached lamp housing.
Figure 3 is a sectioned view of the connection between the base and the lower arm of the adjustable stand of Figures 1 and 2.
Figure 4 is a sectioned view of the connection between the first arm and the second arm of Figure 2.
Figure 5 is a sectioned view showing the connection of a tension spring with an arm.
Referring to Figure 1 of the drawings, there is shown a first embodiment of the adjustable stand of the present invention comprising a relatively massive base 1 and a pivotable counterbalanced arm 2 supporting a lamp housing of conventional construction including a shade 7 within which is mounted a socket assembly (not shown) having a switch 8. The lamp housing is attached to the upper end of arm 2 by a bracket 6 which allows for pivoting of shade 7 about point 30.
Attached to base 1 is a pair of upstanding, spaced parallel plates 4 and 5. As best shown in Figure 3, arm 2 : extends into the space between plates 4 and 5 and is ,`
:~ 4 ,:~
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.
., : . , .: -, . ~
- .: - . . :
- . . ..
.. ~ . .
~ 3 ~ J
pivotally mowlted about pin 3 which extends perpendicularly between the plates. If desired, a mounting bracket 21 attached to base 1 by screw 22 c~n be used to support the lower end of arm 2. Plates 4 and 5 are also interconnected by adjustment means comprising threaded fasteners ~0 and 11.
A tension spring 9r having one end hooked a~out fa~tener 11 and its opposite end hooked into arm 2, acts to counterbalance the weight of the lamp housing and the arm such that the stand will remain in any position tu which it is ad~usted. In addition, to assist in maintaining an adjusted position, arm 2 is fitted with a fric-tion memher comprising sleeve 23 that engages the inner edges of plates 4 and 5 so as to provide a relatively tight but movable friction fit. Sleeve 23 may be a single piece or may be constructed from two U-shaped pieces 24 and 25 as ~hown in Figure 4.
Preferably, arm 2 of the adjustable stand is a hollow tube of square cross-section. Such a shape allows wire 12 of : the lamp housing to be led through the interior of arm 2 to pro~ide a neat appearance and avoid possible entanglement of the wire. In this regard, as shown in Figure 5, tension spring 9 is attached to arm 2 using hook 26 in slot 27 formed in the arm so that the interior of the arm i~ left open for passage of wire 12.
' -In use, the friction between slee~e 23 and friction plates 4 and 5, and the force of tension spring 9 cause arm 2 .
' to remain at the position to which it is moved. A slight force is all that is required to move the arm to a new position. Screw faqteners 10 and 11 provide stops to limit the range of motion of arm 2. In addition, fasteners lO and 11 can be tightened or loosen in order to adjust the distance between friction plates 4 and 5 so as to vary the force needed to move arm 2. It should he emphasized tha-t fasteners 10 and 11 are not used to lock the arm into a fixed position, rather they provide a means to vary the applied force necessary to move the arm~
Figure 2 ~how~ a second embodiment of the present invention that includes a second counterbalanced arm 13 mounted to the upper end of arm 2. The lower arm of the embodiment of Figure 2 is identical to the arm of Figure l and is attached to base 1 in an identical manner.
At the upper end of the lower arm 2, there are mounted a second pair of friction plates 14 and 15 between which is pivotally mounted arm 13 at pin 19. The opposite end of arm 13 supports a conventional lamp housing at bracket 32.
Figure 4 provides a detailed view of the joint between arm 2 and arm 13. Friction plates 14 and 15 are attached to : ~
arm 2 by screw~ 16 and 17. Threaded fastener 18 extends perpendicularly between the plates and serves a variety of ` functions. The fastener provides an anchor point for tension 2~ spr~ng 20 x~ending between the fric-tion plates and arm 13.
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As in the embodiment of Figure l, spring 9 is attached to arm 13 in an identical manner using a hook 26. Fastener 18 also acts as adjustment means to vary the distance between the plates in order to vary the frictional force on arm 13. In addition, fastener 18 acts as a stop to limit -the movement of arm 13 in a range defined by fastener 18 and lower arm 2.
A friction member comprising a sleeve composed of two U-shaped members 24 and 25 is fitted about arm 13 to provide frictional engagement with plates 14 and 15.
As in the previous embodimen-t, arm 13 is preferably formed from a hollow member so that wire 12 can be contained therein. At the joint shown in Figure 4, the pivotally connected end of arm 13 is provided with aperture 34 to allow wire 12 access to the interior of the arm.
The illustrated embodiments of the present invention are shown attached to base 1. However, it will be understood that the adjustable stand structure of the present invention is not limited to such a base structure and may also be used with a base compri.sing a bracket or clamping member for attachment to a desk, wall or other surface.
Furthermore, while the illustrated embodiments show the : adjustable stand of the present invention being used with a ~ lamp housing, it will be understood that the stand can be ~, ' & $ ~? 3~s used to suppor-t other assorted loads such as a microphone or magnifying glass.
Although the present invention has been described in some detail by way of example for purposes of clarity and understanding, it will be apparent that certain chan~es and modifications may be praticed within the scope of the appended claims.
.
,~
.
.
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Claims (9)
1. An adjustable stand comprising:
a base with a pair of upstanding, spaced parallel friction plates;
a single upstanding arm that extends between said parallel friction plates with a lower end pivotally attached between said friction plates and an upper end connected to a supported load, the lower end of said arm being dimensioned to permit pivotal movement between said friction plates and having a friction member comprising a enlarged sleeve fitted about said arm and dimensioned such that said sleeve is tightly and movably held between said friction plates;
counterbalancing means extending externally of said arm between said arm and said base to substantially balance the weight of said arm and said supported load;
whereby said counterbalancing means and said friction member act to ensure that said upstanding arm with its supported load will remain at any position to which said upstanding arm is adjusted.
a base with a pair of upstanding, spaced parallel friction plates;
a single upstanding arm that extends between said parallel friction plates with a lower end pivotally attached between said friction plates and an upper end connected to a supported load, the lower end of said arm being dimensioned to permit pivotal movement between said friction plates and having a friction member comprising a enlarged sleeve fitted about said arm and dimensioned such that said sleeve is tightly and movably held between said friction plates;
counterbalancing means extending externally of said arm between said arm and said base to substantially balance the weight of said arm and said supported load;
whereby said counterbalancing means and said friction member act to ensure that said upstanding arm with its supported load will remain at any position to which said upstanding arm is adjusted.
2. An adjustable stand as claimed in claim 1 in which said supported load is a lamp housing.
3. An adjustable stand as claimed in claim 1 in which said supported load comprises a second pair of spaced friction plates attached to the upper end of said upstanding arm;
a second arm pivotally connected at one end between said second set of friction plates, the opposite end being connected to a second supported load and the one end having a friction member adapted to engage said friction plates;
counterbalancing means extending externally of said second arm between said second arm and said second set of spaced friction plates to substantially balance the weight of said arm and said second supported load.
a second arm pivotally connected at one end between said second set of friction plates, the opposite end being connected to a second supported load and the one end having a friction member adapted to engage said friction plates;
counterbalancing means extending externally of said second arm between said second arm and said second set of spaced friction plates to substantially balance the weight of said arm and said second supported load.
4. An adjustable stand as claimed in claim 1 including adjusting means extending between said pair of friction plates to vary the distance between-said plates in order to vary the frictional force on said friction member.
5. An adjustable stand as claimed in claim 4 in which said adjusting means comprises a threaded fastener.
6. An adjustable stand as claimed in claim 3 including adjusting means extending between said second pair of friction plates to vary the distance between said plates in order to vary the frictional force on said friction member.
7. An adjustable stand as claimed in claim 6 in which said adjusting means comprises a threaded fastener.
8. An adjustable stand as claimed in claim 1 or 3 including stop members extending between said pairs of friction plates to provide a limit to the pivotal travel of said arm between said pairs of friction plates.
9. An adjustable stand as claimed in claim 1 or 3 in which said arm is hollow and suitable for housing a wire.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000569788A CA1316886C (en) | 1988-06-17 | 1988-06-17 | Adjustable stand for supporting a lamp housing |
| US07/629,071 US5108061A (en) | 1988-06-17 | 1990-12-17 | Adjustable stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000569788A CA1316886C (en) | 1988-06-17 | 1988-06-17 | Adjustable stand for supporting a lamp housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1316886C true CA1316886C (en) | 1993-04-27 |
Family
ID=4138226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000569788A Expired - Fee Related CA1316886C (en) | 1988-06-17 | 1988-06-17 | Adjustable stand for supporting a lamp housing |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5108061A (en) |
| CA (1) | CA1316886C (en) |
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| US5649454A (en) * | 1995-05-15 | 1997-07-22 | Purdue Research Foundation | Compliant constant-force mechanism and devices formed therewith |
| US6115068A (en) * | 1995-06-14 | 2000-09-05 | Canon Kabushiki Kaisha | Positionable image input apparatus |
| US5933191A (en) * | 1995-06-14 | 1999-08-03 | Canon Kabushiki Kaisha | Image input apparatus having an adjustable support mechanism |
| US5842672A (en) * | 1996-06-07 | 1998-12-01 | Ergotron, Inc. | Mounting system for flat panel display, keyboard and stand |
| US6027233A (en) * | 1997-05-16 | 2000-02-22 | Chen; Frank | Counterbalanced lamp having a resiliently bowed spring lever |
| WO2002101286A1 (en) * | 2001-06-13 | 2002-12-19 | Humanscale Corp. | Counterbalanced arm assembly |
| US6550734B1 (en) | 2001-10-15 | 2003-04-22 | Lbp Communications, Inc. | Cantilevered support for wired device |
| CA2516593C (en) * | 2003-02-21 | 2011-04-26 | Knoll, Inc. | Mechanical arm with spring counterbalance |
| US7472458B2 (en) * | 2003-06-13 | 2009-01-06 | Innovative Office Products, Inc. | Tilter apparatus for electronic device having bias assembly |
| US7604210B2 (en) * | 2004-09-23 | 2009-10-20 | Innovative Office Products, Inc. | Tilter apparatus having bias assembly |
| US8523131B2 (en) * | 2009-10-08 | 2013-09-03 | Innovative Office Products, Inc. | Tilter for positioning an electronic device |
| US9228729B2 (en) * | 2012-06-29 | 2016-01-05 | Contemporary Visions, L.L.C. | Lamp with a single arm |
| US20140003069A1 (en) * | 2012-06-29 | 2014-01-02 | Sonneman-A Way Of Light | Articulated lamp assembly with imbeded compression springs |
| US9182108B2 (en) * | 2013-09-06 | 2015-11-10 | Habitex Corporation | Foldable support device for a stand lamp |
| DE102015005505B3 (en) * | 2015-04-30 | 2016-06-16 | Ziehm Imaging Gmbh | Manually adjustable monitor mount for a flat screen of a mobile diagnostic device |
| US10122127B2 (en) * | 2016-02-29 | 2018-11-06 | Masterbrand Cabinets, Inc. | Compact drawer outlet |
| US10420710B2 (en) * | 2016-08-18 | 2019-09-24 | Jeremiah John Hunter | Vomit emission containment device |
| CN110319369B (en) * | 2018-03-29 | 2022-07-12 | 襄阳浩宇科技咨询有限公司 | Stable-structure desk lamp |
| CN108591870A (en) * | 2018-03-29 | 2018-09-28 | 襄阳浩宇科技咨询有限公司 | a kind of desk lamp |
| CN110169780A (en) * | 2019-05-13 | 2019-08-27 | 飞瑞医疗器械(嘉兴)有限公司 | Beam-defining clipper, X-ray production apparatus and its adjusting method |
| US11378868B2 (en) | 2021-03-25 | 2022-07-05 | Polar Pro Filters, Inc. | Articulating light hood |
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| CA452486A (en) * | 1948-11-09 | Fiori Irving | Adjustable support structure | |
| BE509815A (en) * | ||||
| US1851199A (en) * | 1928-06-09 | 1932-03-29 | Mayer Charles | Stand for lamps |
| US1823535A (en) * | 1928-10-29 | 1931-09-15 | Frutkow Nathaniel | Therapeutic lamp |
| US2037435A (en) * | 1935-12-06 | 1936-04-14 | Chase Companies Inc | Adjustable lamp stand |
| US2133923A (en) * | 1936-04-24 | 1938-10-18 | Artistic Lamp Mfg Company | Lamp joint |
| US2242303A (en) * | 1939-11-24 | 1941-05-20 | Paul H Irmischer | Swivel joint |
| US2543926A (en) * | 1945-01-27 | 1951-03-06 | Jumo Soc Nouv Ets | Retractable office lamp |
| GB631480A (en) * | 1947-03-28 | 1949-11-03 | Frank Ernest Waller | Improvements in or relating to adjustable lamp fittings |
| US2608367A (en) * | 1950-04-26 | 1952-08-26 | Boltuch Leon | Adjustable support |
| DE1111289B (en) * | 1959-07-18 | 1961-07-20 | Eivind Kirkeby | Rotatable lamp arm with spring-balanced bearing |
| US3037799A (en) * | 1959-09-11 | 1962-06-05 | Rudolph A Mulac | Universal ball and socket joint |
| US3188460A (en) * | 1962-12-06 | 1965-06-08 | Tobey Mfg Corp | Adjustable lamp |
| SE309449B (en) * | 1963-05-13 | 1969-03-24 | E Kirkeby | |
| US3265341A (en) * | 1963-06-24 | 1966-08-09 | Nils T A Ruder | Stands for electric-light fittings and the like |
| US3247370A (en) * | 1963-10-18 | 1966-04-19 | Wayne C Lynn | Lamp with self-adjusting base |
| US3409767A (en) * | 1966-10-17 | 1968-11-05 | Entwistle Clive | Adjustable lamp structure |
| US3543019A (en) * | 1967-11-17 | 1970-11-24 | Jacob Jacobsen | Equipoised lamp |
| US3652848A (en) * | 1968-08-21 | 1972-03-28 | Jack V Miller | Fluorescent lighting fixtures |
| NL7113220A (en) * | 1970-10-02 | 1972-04-05 | ||
| CH543704A (en) * | 1972-02-26 | 1973-10-31 | Artemide Inter Sa | Extendable arm lamp |
| DE2516142C3 (en) * | 1975-04-12 | 1978-09-21 | Fa. Otto Meinzer, 5860 Iserlohn | Tilt and turn joint for lights |
| US3983386A (en) * | 1975-05-07 | 1976-09-28 | Fred Schallenkammer | Swing arm lamp |
| DE2535607C3 (en) * | 1975-08-07 | 1980-11-06 | Erco Leuchten Gmbh, 5880 Luedenscheid | Lamp, in particular table lamp |
| SE386250B (en) * | 1975-08-07 | 1976-08-02 | H Jaquet | DEVICE FOR ALIGNATION AND HOLDING OF A ROD |
| JPS5258284A (en) * | 1975-10-28 | 1977-05-13 | Jacobsen As J | Arm with balance spring |
| GB1556124A (en) * | 1976-06-21 | 1979-11-21 | Turnock Ltd G | Electric lamp fittings |
| IT1072922B (en) * | 1976-09-29 | 1985-04-13 | Scattolin Antonio | MOBILE SUPPORT FOR LAMPS OR OTHER OBJECTS CONSTITUTED BY DEFORMABLE PARALLELOGRAMS BALANCED BY CLUTCH SHOES ACTING ON A STRAP OF EACH PARALLELOGRAM. |
| DE2658888C3 (en) * | 1976-12-24 | 1979-09-13 | Rudolf Zimmermann Gmbh + Co Kg, 8600 Bamberg | Spotlights |
| GB1549575A (en) * | 1977-03-07 | 1979-08-08 | Hille Int Ltd | Light fitting |
| IT1086170B (en) * | 1977-07-28 | 1985-05-28 | Iguzzini Spa | SUPPORT WITH ARTICULATED ARMS, IN PARTICULAR FOR LAMPS |
| ATE759T1 (en) * | 1978-08-26 | 1982-04-15 | John Victor Terry | ADJUSTABLE LAMP. |
| SE415921B (en) * | 1979-02-09 | 1980-11-10 | Roger Wallmark | DEVICE AT WORK LAMPS |
| DE3101367A1 (en) * | 1981-01-17 | 1982-11-04 | Egon Hillebrand Gmbh & Co, 5760 Arnsberg | Articulation for luminaires |
| DE3208805A1 (en) * | 1982-03-11 | 1983-09-22 | Kinkeldey-Leuchten Gmbh & Co Kg, 3280 Bad Pyrmont | Joint for lamps |
| US4545555A (en) * | 1984-07-02 | 1985-10-08 | Koch Mark B | Adjustable arm member for use with a lamp or the like |
| US4770384A (en) * | 1986-07-28 | 1988-09-13 | Matsushita Electric Works, Ltd. | Movable stand |
| US4846434A (en) * | 1988-08-04 | 1989-07-11 | Jac Jacobsen Industrier A.S. | Counterbalanced arm assembly |
-
1988
- 1988-06-17 CA CA000569788A patent/CA1316886C/en not_active Expired - Fee Related
-
1990
- 1990-12-17 US US07/629,071 patent/US5108061A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5108061A (en) | 1992-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |