US3681593A - Snap-in fluorescent lampholder with front end release - Google Patents
Snap-in fluorescent lampholder with front end release Download PDFInfo
- Publication number
- US3681593A US3681593A US87047A US3681593DA US3681593A US 3681593 A US3681593 A US 3681593A US 87047 A US87047 A US 87047A US 3681593D A US3681593D A US 3681593DA US 3681593 A US3681593 A US 3681593A
- Authority
- US
- United States
- Prior art keywords
- spring
- body portion
- loops
- lampholder
- forwardly
- 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 - Lifetime
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Classifications
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
- F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Definitions
- a compressible lampholder for double ended fluorescent lamps especially those of the high-output, rapid-start type, has a one-piece mounting clip at its rear end, formed with forwardly opening spring loops that have shoulders normally preventing-removal of the lampholder from the mounting hole of a support panel.
- the loops yield resiliently when the lampholder is inserted in the mounting panel, and cooperate with a compression coil spring to hold the lampholder in its mounted position while leaving it free tocompress when the fixture is lampedL
- the spring loops have distal portions accessible from the front of the mounting panel to deflect the loops to a panel-disengaging position for removal of the lampholder.
- Lampholders have been heretofore designed, especially adapted to receive lamps the bases of which are of thetype disclosed in patents such as Lemmers U.S. Pat. No. 2,716,739 issued Aug. 30, 1955; and J. M. Pistey U.S. Pat. No. 2,742,621 issued Apr. 17, 1956.
- lampholders In sets or pairs, with one of the lampholders being stationarily mounted orsubstantially so, and the other being axially compressible to a substantial degree, whereby to facilitate the insertion of the lamp ends in the lampholders, after which the compressible lampholder exerts an axial pressure upon the lamp, causing it to be tightly engaged at its respective ends in the lampholders of the set.
- Typical of lampholder patents in this art are Kulka U.S. Pat. No. 3,116,098 issued Dec. 31, 1963; and Laurenzo U.S. Pat. No. 3,287,688, issued Nov. 22, I966.
- the compressible lampholder is of the snap-in type, that is to say, the lampholder is equipped with a spring clip that permits the lampholder to be snapped into a mounting panel as a labor-saving expedient.
- the mounting panel is part of an electrical fixture, or is mounted directly against a wall of a room, or other supporting structure, in such fashion as to be inaccessible or at least difficult to reach from the back.
- front end release of lampholders of this type is a desirable feature.
- lampholders of this type are extremely competitive business. This is by reason of the fact that in their essential characteristics, all lampholders intended to receive gaseous discharge lamps of the type described, must have certain dimensions, electrically insulative characteristics, and electrical ratings, in common. In other words, all of these lampholders are alike electrically, and in fact conform to requirements established by Underwriters Laboratories or by industry codes. It is for this reason that the industry is so highly competitive, and it becomes extremely important to design a lampholder which will meet the stringent requirements established therefore, while at the sametime being capable of manufacture at an extreme- Iy low unit cost.
- the compressible lampholder comprising the present invention has, in common with those of the Kulka and Laurenzo patents, an insulating body having a flanged head portion in which is provided a forwardly opening recess having thereincontact means especially adapted to receive the associated end of a high output,
- the present invention also has in common with the prior art devices a compression coil spring, the-.convolutions of which become progressively larger in a direction rearwardly from the head portion, said spring being compressed between the flanged head portion-of the device and the mounting panel receiving the device.
- the present invention has a one piece spring clip secured to its rear end, said clip having an intermediate portion extending diametrically of the body of the device and terminating in spring legs that are projected forwardly and that are formed with reentrant angles receiving opposed edge portions of the mounting hole. Said legs have forwardly projecting extensions, against which a user may position a screwdriver bit or the like,
- FIG. 1 is a side elevational view of a lampholder according to the present invention, as it appears prior to mounting in a supporting panel;
- FIG. 2 is a front elevational view thereof, asseen from the right of FIG. 1;
- FIG. 3 is a view of the lampholder, partly in side elevation and partly in longitudinal section, as it appears when mounted, an associated supporting panel being illustrated fragmentarily and in section;
- FIG. 4 is a rear elevational view of the lampholder in its mounted position, the supporting panel being illustrated fragmentarily, as seen from the left of FIG. 3;
- screwdriver bit has-been inserted, and utilized to disengage the. lampholder, which is shown partially rocked out of its mounted position priorto complete remov from the mounting panel;
- FIG. 6 is a perspective view of the onepiece mount DESCRlPTION'OFTI-IE PREFERRE EMBODIMENT"
- the lampholder 10 comprising the present invention includes a I body 11 of electrical insulation material, such as a molded plastic or the like,.having a cylindrical body fportionl2 integral at its'front end withan .enlarged,flat collar or flange constituting a head portion 14 the, underside of which comprises an abutment 1'5.
- Thebody portion 12 is formed (See FIG. 4) withaflat 16, corresponding to a flat edge I7 of an otherwise circular mounting hole 18 formed in a mounting plate 20, which may constitute a portion of an electrical fixture in which a double" ended gaseous discharge lamp L is supported.
- FIG. Sis a view similar-to FIG. 3 in which a 25 projecting out of the rearend of the body portion 7 12.
- recess 22 there can be provided, for the'purthe convolutions of. which are normally widelyspaced as shown in FIG. 1, said convolutions being progressively increased in diameter in a direction away from the head portion 14.
- spring 28 bears against abutment 15.
- the smallest convolution can be At :the opposite endsof the clip, the. recess 32 is formed with end portions or extensions 36 of greater depth in a direction axially of body portion 12.
- Clip '30 asshown to best advantage in FIG.'6, is formed with a flat, elongated'intermediate portion 38,
- the springmernbers 48 merge into inwardly extending shoulders 50, which are sub-' stantially parallel with the intermediate portion 38 and connecting members 46. Shoulders 50, at their inner ends, in turn merge into forwardly projecting'distal soformed asto grip the body portion, to hold the coil spring assembledwith the body 11 of the lampholder while'awaiting use.
- a retaining or mounting clip including the inventive-features of my lampholder.
- Clip 30 is formed from a single piece of spring steel, in
- a preferred embodiment which as shown in the drawing is of constant width from end to end thereof. This, as will be readily appreciated, simplifies the construction of the device, and manufacturing costs and procedures, to a marked degree.
- the clip By forming a clip of this type from a constant width, flat length of strip stock, the clip can be cheaply and swiftly formed, by mass production techniques, in four-slidepresses or similar equipment. Of importance, in .this regard,
- the clip is so designed as to perclip and defining opposed walls or abutments 34 to t relative rotational movement of the clip
- preven members 52 which are short in length, and which are recessed within the extensions 36 of recess 32 of body portion 1-2.
- each end portion 43 of the clip canbe considered'as respectively comprising the members 44, 46, 48, 50 and 52. [team thus be seen that each end portion is in the form of a forwardly opening spring loop, it being understood that the material of the clip is spring steel, and that the spring loops can be moved toward a closed position as shown-by the lower spring loop in FIG. 5,
- members 48, 50, 52 of each end portion 43 of the clip together comprise a spring leg.
- the clip has atits ends spring legs which are adapted to be deflected radially inwardly of the body portion when the body portion is being mounted. Further, a selected one of the spring legs can be pressed inwardly by a tool or instrument held by the user, when the device is to be removed.
- a screwdriver bit S to position it in the reentrant angle 56 defined between shoulder 50 and distal member 52. With the screwdriver bit so positioned, one simply presses inwardly upon the distal member, temporarily closing the spring loop engaged by the screwdriver bit and causing shoulder 50 thereof to clear the edge of the mounting hole 18.
- the screwdriver bit in these circumstances, can be rocked against the adjacent convolution 58 of coil spring 28, so that the entire lampholder rocks in the direction shown in FIG. 5, pivoting upon point 60 where the coil spring 28 bears against mounting plate or panel 20, until the lampholder is sufficiently clear of the mounting hole to pemiit it to be removed.- This is accomplished with maximum speed and ease.
- loops partially recessed within the rear end and side of the body portion and formed with inner walls affixed to the body portion, said loops additionally including rearwardly converging spring legs connected to the inner walls in laterally outwardly spaced relation thereto, said legs diverging forwardly and being formed at their divergent ends with re'entrant angles, defining shoulders projecting radially outwardly beyond the circumference of the body portion and additionally defining short distal members projecting forwardly from the shoulders and terminating at their forward ends adjacent the rear end of the body portion in close proximity to the open ends of the loops.
- each spring v loop circumscribes a wholly open area with the spring legs being deflectable over their full lengths toward the adjacent inner walls of the loops.
- a mounting clip including a pair of generally U-
Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8704770A | 1970-11-05 | 1970-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3681593A true US3681593A (en) | 1972-08-01 |
Family
ID=22202808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US87047A Expired - Lifetime US3681593A (en) | 1970-11-05 | 1970-11-05 | Snap-in fluorescent lampholder with front end release |
Country Status (2)
Country | Link |
---|---|
US (1) | US3681593A (en) |
CA (1) | CA921583A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4220808A (en) * | 1977-02-24 | 1980-09-02 | Izumi Denki Corporation | Mounting device for compact apparatus |
US4327264A (en) * | 1977-04-29 | 1982-04-27 | Itt Industries, Inc. | Fastening device for a switch |
US4586843A (en) * | 1983-02-28 | 1986-05-06 | Cgee Alsthom | Device for attaching an object to a wall |
US4596369A (en) * | 1983-01-12 | 1986-06-24 | E.G.O. Elektro-Gerate Blanc U. Fischer | Mounting mechanism for a control device |
US4715569A (en) * | 1985-06-15 | 1987-12-29 | Ego Elektro-Gerate Blanc U. Fischer | Fastening mechanism for mounting operating equipment and the like |
US5122074A (en) * | 1990-08-09 | 1992-06-16 | Voltarc Technologies Inc. | Flourescent lamp holder mount |
US6158699A (en) * | 1997-09-10 | 2000-12-12 | Micron Electronics, Inc. | Apparatus for mounting computer components |
US6176001B1 (en) | 1997-09-10 | 2001-01-23 | Micron Electronics, Inc. | Method for mounting computer components |
US6276041B1 (en) | 1997-09-10 | 2001-08-21 | Micron Technology, Inc. | Method for coupling computer components |
US6330991B1 (en) | 1997-06-23 | 2001-12-18 | Micron Technology, Inc. | Apparatus for mounting an element |
US6349039B1 (en) | 1997-09-10 | 2002-02-19 | Micron Technology, Inc. | Apparatus for coupling computer components |
US6377447B1 (en) | 1999-09-16 | 2002-04-23 | Micron Technology, Inc. | Quick release disk drive to chassis mounting apparatus and method |
US6405986B1 (en) * | 1998-01-26 | 2002-06-18 | Martin Audio Limited | Mounting arrangement for a loudspeaker, luminaire or similar apparatus |
US20070066112A1 (en) * | 2005-09-13 | 2007-03-22 | Anthony Tufano | Fluorescent lampholder |
US20100013391A1 (en) * | 2008-07-15 | 2010-01-21 | Leviton Manufacturing Corporation | Fluorescent lamp support |
US20100081339A1 (en) * | 2008-10-01 | 2010-04-01 | Leviton Manufacturing Company, Inc. | Lamp socket having a rotor assembly |
US20100265700A1 (en) * | 2008-07-15 | 2010-10-21 | Leviton Manufacturing Corporation | Flourescent lamp support |
US20100321918A1 (en) * | 2009-06-23 | 2010-12-23 | D Alelio John R | Clip-on Lampshade Adaptor for Enhanced Gripping of both Standard Incandescent and Compact Fluorescent Light Bulbs |
US20110051439A1 (en) * | 2009-09-01 | 2011-03-03 | D Alelio John R | Method for enhancing the frictional grip of a clip-on lampshade |
EP2321876A1 (en) * | 2008-07-30 | 2011-05-18 | Pelco. Inc. | Apparatus for mounting a surveillance camera |
US20110164414A1 (en) * | 2008-07-15 | 2011-07-07 | Robert Quercia | Fluorescent lamp support |
US8258684B1 (en) | 2010-10-18 | 2012-09-04 | Eric K Zimmerman | Electrode cover assembly |
US8333602B2 (en) | 2011-01-06 | 2012-12-18 | Leviton Manufacturing Co., Inc. | Lamp socket having a rotor |
US10967712B2 (en) * | 2016-02-04 | 2021-04-06 | Kabushiki Kaisha Toyota Jidoshokki | Register panel mounting structure |
-
1970
- 1970-11-05 US US87047A patent/US3681593A/en not_active Expired - Lifetime
-
1971
- 1971-03-22 CA CA108339A patent/CA921583A/en not_active Expired
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4220808A (en) * | 1977-02-24 | 1980-09-02 | Izumi Denki Corporation | Mounting device for compact apparatus |
US4327264A (en) * | 1977-04-29 | 1982-04-27 | Itt Industries, Inc. | Fastening device for a switch |
US4596369A (en) * | 1983-01-12 | 1986-06-24 | E.G.O. Elektro-Gerate Blanc U. Fischer | Mounting mechanism for a control device |
US4586843A (en) * | 1983-02-28 | 1986-05-06 | Cgee Alsthom | Device for attaching an object to a wall |
US4715569A (en) * | 1985-06-15 | 1987-12-29 | Ego Elektro-Gerate Blanc U. Fischer | Fastening mechanism for mounting operating equipment and the like |
US5122074A (en) * | 1990-08-09 | 1992-06-16 | Voltarc Technologies Inc. | Flourescent lamp holder mount |
US6330991B1 (en) | 1997-06-23 | 2001-12-18 | Micron Technology, Inc. | Apparatus for mounting an element |
US6176001B1 (en) | 1997-09-10 | 2001-01-23 | Micron Electronics, Inc. | Method for mounting computer components |
US6276041B1 (en) | 1997-09-10 | 2001-08-21 | Micron Technology, Inc. | Method for coupling computer components |
US6158699A (en) * | 1997-09-10 | 2000-12-12 | Micron Electronics, Inc. | Apparatus for mounting computer components |
US6349039B1 (en) | 1997-09-10 | 2002-02-19 | Micron Technology, Inc. | Apparatus for coupling computer components |
US6522556B2 (en) | 1997-09-10 | 2003-02-18 | Micron Technology, Inc. | Apparatus for coupling computer components |
US6405986B1 (en) * | 1998-01-26 | 2002-06-18 | Martin Audio Limited | Mounting arrangement for a loudspeaker, luminaire or similar apparatus |
US6377447B1 (en) | 1999-09-16 | 2002-04-23 | Micron Technology, Inc. | Quick release disk drive to chassis mounting apparatus and method |
US20100015832A1 (en) * | 2005-09-13 | 2010-01-21 | Leviton Manufacturing Co., Inc. | Fluorescent lampholder |
US7862357B2 (en) | 2005-09-13 | 2011-01-04 | Leviton Manufacturing Co., Inc. | Fluorescent lampholder |
US20070066112A1 (en) * | 2005-09-13 | 2007-03-22 | Anthony Tufano | Fluorescent lampholder |
US7597575B2 (en) | 2005-09-13 | 2009-10-06 | Leviton Manufacturing Co., Inc. | Fluorescent lampholder |
US8038458B2 (en) | 2005-09-13 | 2011-10-18 | Leviton Manufacturing Co., Inc. | Fluorescent lampholder |
US8113684B2 (en) | 2008-07-15 | 2012-02-14 | Leviton Manufacturing Co., Inc. | Fluorescent lamp support |
US20100265700A1 (en) * | 2008-07-15 | 2010-10-21 | Leviton Manufacturing Corporation | Flourescent lamp support |
US20100013391A1 (en) * | 2008-07-15 | 2010-01-21 | Leviton Manufacturing Corporation | Fluorescent lamp support |
US20110164414A1 (en) * | 2008-07-15 | 2011-07-07 | Robert Quercia | Fluorescent lamp support |
EP2321876A4 (en) * | 2008-07-30 | 2011-09-14 | Pelco Inc | Apparatus for mounting a surveillance camera |
EP2321876A1 (en) * | 2008-07-30 | 2011-05-18 | Pelco. Inc. | Apparatus for mounting a surveillance camera |
US20100081339A1 (en) * | 2008-10-01 | 2010-04-01 | Leviton Manufacturing Company, Inc. | Lamp socket having a rotor assembly |
US8123540B2 (en) | 2008-10-01 | 2012-02-28 | Leviton Manufacturing Co., Inc. | Lamp socket having a rotor assembly |
US20100321918A1 (en) * | 2009-06-23 | 2010-12-23 | D Alelio John R | Clip-on Lampshade Adaptor for Enhanced Gripping of both Standard Incandescent and Compact Fluorescent Light Bulbs |
US20110051439A1 (en) * | 2009-09-01 | 2011-03-03 | D Alelio John R | Method for enhancing the frictional grip of a clip-on lampshade |
US8292475B2 (en) | 2009-09-01 | 2012-10-23 | D Alelio John R | Method for enhancing the frictional grip of a clip-on lampshade |
US8258684B1 (en) | 2010-10-18 | 2012-09-04 | Eric K Zimmerman | Electrode cover assembly |
US8333602B2 (en) | 2011-01-06 | 2012-12-18 | Leviton Manufacturing Co., Inc. | Lamp socket having a rotor |
US10967712B2 (en) * | 2016-02-04 | 2021-04-06 | Kabushiki Kaisha Toyota Jidoshokki | Register panel mounting structure |
Also Published As
Publication number | Publication date |
---|---|
CA921583A (en) | 1973-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHALLENGER CIRCLE F, INC., NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO LICENSE RECITED.;ASSIGNOR:GTE SYLVANIA WITING DEVICES INCORPORATED;REEL/FRAME:004196/0863 Effective date: 19831130 |
|
AS | Assignment |
Owner name: CFC CAPITAL CORPORATION Free format text: SECURITY INTEREST;ASSIGNOR:LIBERTY LIGHTING CO., INC.,;REEL/FRAME:005228/0076 Effective date: 19890705 |
|
AS | Assignment |
Owner name: LIBERTY LIGHTING CO., INC., A CORP. OF IL, NEW JER Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHALLENGER CIRCLE F, INC.;REEL/FRAME:005221/0986 Effective date: 19890705 |