US3345675A - Furniture caddy carrier - Google Patents

Furniture caddy carrier Download PDF

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Publication number
US3345675A
US3345675A US536237A US53623766A US3345675A US 3345675 A US3345675 A US 3345675A US 536237 A US536237 A US 536237A US 53623766 A US53623766 A US 53623766A US 3345675 A US3345675 A US 3345675A
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Prior art keywords
carrier
stem
cylindrical
shaft
balls
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US536237A
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Raymond S Haydock
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0036Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042Double or twin wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture

Definitions

  • the present invention relates to a furniture caddy carrier, and is particularly concerned with a caster, the greatest diameter of which rotates around its own center 01' axis, and does not oscillate.
  • One of the objects of the invention is the provision of an improved furniture caddy carrier, in which the design of the caster is such that it gives a symmetrical look to the unit, to which it is attached, through the full 360 of rotation on its own axis, or at any degree within the 360.
  • Another object is the provision of an improved caster in which the greatest diameter rotates around its own cen ter or axis, and does not oscillate, and also a caster which is symmetrical above its center of gravity relative to its own center or axis.
  • FIG. 1 is a fragmentary side elevational view of a caster, installed in the leg of an article of furniture, embodying the invention
  • FIG. 2 is a top plan view, taken on the plane of the line 22 of FIG. 1, looking in the direction of the arrows;
  • FIG. 3, is a bottom plan View
  • FIG. 4 is a bottom view with the cover removed
  • FIG. 5 is a vertical, medial, sectional view, taken on the plane of the line 55 of FIG. 3, looking in the direction of the arrows;
  • FIG. 6 is a medial, vertical, sectional View, taken on the plane of the line 6-6 of FIG. 3, looking in the direction of the arrows;
  • FIG. 7 is an exploded view of the parts, showing the bottom of the carrier, the wheels, the stub shaft, and a fragment of the cover from the bottom.
  • FIG. 1, 10 indicates the fragment of a leg of an article of furniture
  • 12 indicates the caster or carrier, in its entirety
  • 14 indicates the body of the carrier, having a fixed cylindrical hub 16, rotatably mounted upon a stem 18, in a socket 20, in the leg 10, the socket 20 being lined in the conventional way.
  • the stem 18 is surrounded by the usual washer 22, forming a part of the lining just mentioned, and bearing against the lower end 24 of the leg 10.
  • Each race 32 is engaged in an annular enlargement 36 in the cylindrical bore 38, in the hub 16, and the balls 30 bear against an annular washer 40, which in turn engages washer 42, which is engaged by the riveted end 44 of the stem 18.
  • All of the parts of the caddy carrier may be made of metal or a suitable plastic, except that the wheels may be rubber or plastic, and the carrier may be provided with an adapter (not shown) for different sizes, and some may be threaded and some plain,
  • the carrier 14 On its inside, the carrier 14 is generally hollow, except for reinforcing ribs 54, 54, and 56, 56, and the ribs 56, 56 are formed with half cylindrical bearing sockets 58 for receiving the single stub shaft 60 of cylindrical shape, With plane ends 62, 62 engaging the inner sides 64, 64 of a pair of downwardly projecting ribs 66, 66 to resist end thrust on shaft 60.
  • the shaft 60 supports a pair of oppositely turned rollers 68, 68, each having a hollow interior, and a cylindrical inner end portion 70, 70 and a conical outer end portion 72, 72 integrally mounted on a cylindrical bearing 74, 74, bearing against each other, and against the inside 64, 64 of ribs 66, 66, and having a cylindrical bore for receiving the shaft 60.
  • the caster rotates on its own center or axis and does not oscillate. It is symmetrical above its own center of gravity, relative to its own center or axis.
  • the design of the caster is such that it is intended to give a symmetrical look to the unit to which it is attached, through the full 360 of rotation on its own axis, or at any degree within the 360".
  • a caster body having a fixed cylindrical hub, rotatably mounted upon a substantially cylindrical stem, adapted to be mounted in a socket, in a leg of an article of furniture, the said stem being rotatably mounted in said hub, by means of an upper and a lower ball bearing assembly, mounted in upper and lower races, each having a plurality of balls, the balls engaging a cylindrical portion of said stem, each race being engaged in an annular enlargement, in a cylindrical bore in said hub, the balls bearing against an annular washer, which engages a second washer, which is engaged by the riveted end of said stem, said stern having balls also at the upper end of the stem, bearing against an annular shoulder on the stem, said shoulder having an inner circular curvature fitting against the balls, the said carrier being of generally half-spherical shape on its exterior, and integrally joined to said hub, centrally located on the upper end of the carrier, and the lower end of the carrier having an outwardly projecting annular shoulder for retaining
  • a single stub shaft of cylindrical form snapping into or out of said bearings, said shaft having plane ends, engaging the inner sides of a pair of downwardly projecting ribs, to resist end thrust on said shaft, the said shaft supporting a pair of oppositely turned rollers, each roller having a hollow interior, and a cylindrical inner end portion, and a conical outer. end portion, integrally mounted on a cylindrical. bearing with. said bearings against each other and against the inside of projecting ribs, and each bearing having a cylindrical bore for receiving said shaft, the said caster rotating around on its oWn axis Without oscillation, and being symmetrical above its oWn center of gravity relative to its own axis.
  • rollers are formed of a rubber material.

Description

Oct. 10, 1967 R. s. HAYDOCK FURNITURE CADDY CARRIER 2 Sheets-Sheet Filed Jan. 13, 1966 INVENTOR I Jg ywzor/zd fifla ldfiC/ g ATTORNEY United States Patent O Filed Jan. 13, 1966, Ser. No. 536,237 3 Claims. (Cl. 145-45) The present invention relates to a furniture caddy carrier, and is particularly concerned with a caster, the greatest diameter of which rotates around its own center 01' axis, and does not oscillate.
One of the objects of the invention is the provision of an improved furniture caddy carrier, in which the design of the caster is such that it gives a symmetrical look to the unit, to which it is attached, through the full 360 of rotation on its own axis, or at any degree within the 360.
Another object is the provision of an improved caster in which the greatest diameter rotates around its own cen ter or axis, and does not oscillate, and also a caster which is symmetrical above its center of gravity relative to its own center or axis.
Another object is the provision of an improved caster, which is simple in construction, having a minimum number of parts, adapted to be used for a long period of time without repair or replacement of parts, adapted to be most economically manufactured, and sold Within the price range of a vast number of purchasers.
Other objects and advantages of the invention, will be apparent from the following description, and the accompanying drawings, in which similar characters of reference, indicate similar parts throughout the several views.
Referring to the two sheets of drawings;
FIG. 1 is a fragmentary side elevational view of a caster, installed in the leg of an article of furniture, embodying the invention;
FIG. 2 is a top plan view, taken on the plane of the line 22 of FIG. 1, looking in the direction of the arrows;
FIG. 3, is a bottom plan View;
FIG. 4 is a bottom view with the cover removed;
FIG. 5 is a vertical, medial, sectional view, taken on the plane of the line 55 of FIG. 3, looking in the direction of the arrows;
FIG. 6 is a medial, vertical, sectional View, taken on the plane of the line 6-6 of FIG. 3, looking in the direction of the arrows; and
FIG. 7 is an exploded view of the parts, showing the bottom of the carrier, the wheels, the stub shaft, and a fragment of the cover from the bottom.
Referring to the drawings, FIG. 1, 10 indicates the fragment of a leg of an article of furniture, 12 indicates the caster or carrier, in its entirety, 14 indicates the body of the carrier, having a fixed cylindrical hub 16, rotatably mounted upon a stem 18, in a socket 20, in the leg 10, the socket 20 being lined in the conventional way.
The stem 18 is surrounded by the usual washer 22, forming a part of the lining just mentioned, and bearing against the lower end 24 of the leg 10.
The stem 18 is rotatable in the hub 16, being mounted in the hub 16 by means of upper 26, and lower 28, ball bearing assemblies, each of which has a plurality of balls 30, mounted in upper and lower races 32, 32, the balls 30 engaging a cylindrical portion 34 of the stem 18.
Each race 32 is engaged in an annular enlargement 36 in the cylindrical bore 38, in the hub 16, and the balls 30 bear against an annular washer 40, which in turn engages washer 42, which is engaged by the riveted end 44 of the stem 18.
At the upper end of a cylindrical portion 34 of stem 18, the balls 30 bear against an annular shoulder 46, on stem 18, this shoulder having an inner circular curvature, fitting against the balls 30.
The annular indentation 48 in the upper end of stem 18 is the usual shape of a stem, resiliently engaging a retain: ing member in the aforementioned lining.
All of the parts of the caddy carrier may be made of metal or a suitable plastic, except that the wheels may be rubber or plastic, and the carrier may be provided with an adapter (not shown) for different sizes, and some may be threaded and some plain,
Referring to FIGS. 4, 5 and 6, the carrier 14 is of generally half spherical shape on its exterior, integrally joined to hub 16, centrally located on the upper end of carrier 14, and at its lower end the carrier has an outwardly projecting annular shoulder 50 for retaining cover 52.
On its inside, the carrier 14 is generally hollow, except for reinforcing ribs 54, 54, and 56, 56, and the ribs 56, 56 are formed with half cylindrical bearing sockets 58 for receiving the single stub shaft 60 of cylindrical shape, With plane ends 62, 62 engaging the inner sides 64, 64 of a pair of downwardly projecting ribs 66, 66 to resist end thrust on shaft 60.
The shaft 60 supports a pair of oppositely turned rollers 68, 68, each having a hollow interior, and a cylindrical inner end portion 70, 70 and a conical outer end portion 72, 72 integrally mounted on a cylindrical bearing 74, 74, bearing against each other, and against the inside 64, 64 of ribs 66, 66, and having a cylindrical bore for receiving the shaft 60.
The parts are constructed of substantially rigid plastic, but having sufiiciency so that the shaft 60 will be permitted to force apart the bearing sockets 58 to snap into the bearings, and be retained, or also pulled out of said bearings.
The operation of the caster is as follows:
The caster rotates on its own center or axis and does not oscillate. It is symmetrical above its own center of gravity, relative to its own center or axis. The design of the caster is such that it is intended to give a symmetrical look to the unit to which it is attached, through the full 360 of rotation on its own axis, or at any degree within the 360".
It will thus be osberved that I have invented an improved caster which is attractive in appearance and efilcient in its operation. The caster is simple in construction, having a minimum number of parts, adapted to be used for a long period of time without repair or replacement of parts, adapted to be manufactured most economically and sold within the price range of a vast number of purchasers.
What I claim is new and desire to secure by United States Letters Patent is:
1. In a furniture caddy carrier, the combination of a caster body having a fixed cylindrical hub, rotatably mounted upon a substantially cylindrical stem, adapted to be mounted in a socket, in a leg of an article of furniture, the said stem being rotatably mounted in said hub, by means of an upper and a lower ball bearing assembly, mounted in upper and lower races, each having a plurality of balls, the balls engaging a cylindrical portion of said stem, each race being engaged in an annular enlargement, in a cylindrical bore in said hub, the balls bearing against an annular washer, which engages a second washer, which is engaged by the riveted end of said stem, said stern having balls also at the upper end of the stem, bearing against an annular shoulder on the stem, said shoulder having an inner circular curvature fitting against the balls, the said carrier being of generally half-spherical shape on its exterior, and integrally joined to said hub, centrally located on the upper end of the carrier, and the lower end of the carrier having an outwardly projecting annular shoulder for retaining a cover, which snaps on or off the carrier, the said carrier being generally hollow, except for reinforcing ribs, two of said ribs being formed with half cylindrical bearing sockets for receiving a shaft,
a single stub shaft of cylindrical form, snapping into or out of said bearings, said shaft having plane ends, engaging the inner sides of a pair of downwardly projecting ribs, to resist end thrust on said shaft, the said shaft supporting a pair of oppositely turned rollers, each roller having a hollow interior, and a cylindrical inner end portion, and a conical outer. end portion, integrally mounted on a cylindrical. bearing with. said bearings against each other and against the inside of projecting ribs, and each bearing having a cylindrical bore for receiving said shaft, the said caster rotating around on its oWn axis Without oscillation, and being symmetrical above its oWn center of gravity relative to its own axis.
2. The structure of claim 1 in which; the rollers are formed of a rubber material.
3. The structure of claim 1 in which the rollers are formed of a plastic material.
References Cited FOREIGN PATENTS 9/1959 France.
BOBBY R. GAY, Primary Examiner.
15 D. L. TROUTMAN, Assistant Examiner.

Claims (1)

1. IN A FURNITURE CADDY CARRIER, THE COMBINATION OF A CASTER BODY HAVING A FIXED CYLINDRICAL HUB, ROTATABLY MOUNTED UPON A SUBSTANTIALLY CYLINDRICAL STEM, ADAPTED TO BE MOUNTED IN A SOCKET, IN A LEG OF AN ARTICLE OF FURNITURE, THE SAID STEM BEING ROTATABLY MOUNTED IN SAID HUB, BY MEANS OF AN UPPER AND LOWER BALL BEARING ASSEMBLY, MOUNTED IN UPPER AND LOWER RACES, EACH HAVING A PLURALITY OF BALLS, THE BALLS ENGAGING A CYLINDRICAL PORTION OF SAID STEM, EACH RACE BEING ENGAGED IN AN ANNULAR ENLARGEMENT, IN CYLINDRICAL BORE IN SAID HUB, THE BALLS BEARING AGAINST AN ANNULAR WASHER, WHICH ENGAGES A SECOND WASHER, WHICH IS ENGAGED BY THE RIVETED END OF SAID STEM, SAID STEM HAVING BALLS ALSO AT THE UPPER END OF THE STEM, BEARING AGAINST AN ANNULAR SHOULDER ON THE STEM, SAID SHOULDER HAVING AN INNER CIRCULAR CURVATURE FITTING AGAINST THE BALLS, THE SAID CARRIER BEING OF GENERALLY HALF-SPHERICAL SHAPE ON ITS EXTERIOR, AND INTEGRALLY JOINED TO SAID HUB, CENTRALLY LOCATED ON THE UPPER END OF THE CARRIER, AND THE LOWER END OF THE CARRIER HAVING AN OUTWARDLY PROJECTING ANNULAR SHOULDER FOR RETAINING A COVER, WHICH SNAPS ON OR OFF THE CARRIER, THE SAID CARRIER BEING GENERALLY HOLLOW, EXCEPT FOR REINFORCING RIBS, TWO OF SAID RIBS BEING FORMED WITH HALF CYLINDRICAL BEARING SOCKETS FOR RECEIVING A SHAFT, A SINGLE STUB SHAFT OF CYLINDRICAL FORM, SNAPPING INTO OR OUT OF SAID BEARINGS, SAID SHAFT HAVING PLANE ENDS, ENGAGING THE INNER SIDES OF A PAIR OF DOWNWARDLY PROJECTING RIBS, TO RESIST END THRUST ON SAID SHAFT, THE SAID SHAFT SUPPORTING A PAIR OF OPPOSITELY TURNED ROLLERS, EACH ROLLER HAVING A HOLLOW INTERIOR, AND A CYLINDRICAL INNER END PORTION, AND CONICAL OUTER END PORTION, INTEGRALLY MOUNTED ON A CYLINDRICAL BEARING WITH SAID BEARINGS AGAINST EACH OTHER AND AGAINST THE INSIDE OF PROJECTING RIBS, AND EACH BEARING HAVING A CYLINDRICAL BORE FOR RECEIVING SAID SHAFT, THE SAID CASTER ROTATING AROUND ON ITS OWN AXIS WITHOUT OSCILLATION, AND BEING SYMMETRICAL ABOVE ITS OWN CENTER OF GRAVITY RELATIVE TO ITS OWN AXIS.
US536237A 1966-01-13 1966-01-13 Furniture caddy carrier Expired - Lifetime US3345675A (en)

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2167763A1 (en) * 1972-01-07 1973-08-24 Guy Raymond Eng Co Ltd
US3858271A (en) * 1971-11-19 1975-01-07 Bernard Peter Fox Howard Floor-engaging mobile support devices for articles of furniture or the like
US4069543A (en) * 1975-06-28 1978-01-24 Michael Joseph James Glide castors
US4168558A (en) * 1978-03-13 1979-09-25 Brooks Walker Mount for wheeled suitcases
FR2485446A1 (en) * 1980-06-26 1981-12-31 Trevini Ogtm PIVOTING WHEEL
US4989920A (en) * 1983-05-27 1991-02-05 University Of Virginia Alumni Patents Found. Self-damping caster wheel
US5134753A (en) * 1991-01-18 1992-08-04 Firma Sudhaus Schloss- Und Beschlagtechnik Gmbh & Co. Luggage caster
WO2000006474A1 (en) * 1998-07-30 2000-02-10 Fmc Corporation Material handling unit with multidirectional helical roller assemblies
US6125504A (en) * 1998-09-21 2000-10-03 Richards; Tammy L. Chair caster cover
US6332240B1 (en) * 1999-08-05 2001-12-25 Tsai Mei Wu Wheel assembly for a baby walker or stroller
EP1241970A1 (en) * 1999-11-17 2002-09-25 Lg Electronics Inc. Buffer structured castor wheel for vacuum cleaner
US20090025177A1 (en) * 2007-07-23 2009-01-29 Metalurgica Schioppa Ltda. Constructive arrangement applied to swivel castor guards
US20090260181A1 (en) * 2008-04-18 2009-10-22 Dennis Jones Caster
US7621858B2 (en) * 2004-03-19 2009-11-24 Aileen Sheron Apparatus and method for exercise using an omnidirectional roller
US20100229340A1 (en) * 2009-03-11 2010-09-16 Pao-Hsien Cheng Caster
US20110138571A1 (en) * 2009-12-15 2011-06-16 Po-Chuan Tsai Castor that can be Detached and Cleaned Easily and Quickly
US20130097808A1 (en) * 2011-10-24 2013-04-25 Pipp Mobile Storage Systems, Inc. Caster wheel bumper
US8590907B2 (en) 2010-04-15 2013-11-26 White Pine Concepts Llc Gardening stool
US9108462B1 (en) * 2014-03-03 2015-08-18 Keith J. Stone Industrial caster guard
US20150328926A1 (en) * 2014-05-13 2015-11-19 Radoslaw Illing Shield for a Caster Wheel
US9566926B1 (en) * 2015-08-10 2017-02-14 Bryan D. Dubas Wheel guard
US20170043621A1 (en) * 2014-04-24 2017-02-16 Ingenious Designs Llc Caster wheel assembly
US9701269B1 (en) * 2015-08-10 2017-07-11 Bryan D. Dubas Wheel guard
US20210061042A1 (en) * 2019-08-29 2021-03-04 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot
US20210347204A1 (en) * 2020-05-06 2021-11-11 Mtd Products Inc Caster wheel assembly for an outdoor power equipment machine
US11235617B1 (en) * 2020-12-10 2022-02-01 Sam Rabi Platform transport wheel assembly and method of use
USD993759S1 (en) 2020-10-23 2023-08-01 Mtd Products Inc Caster wheel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US581216A (en) * 1897-04-20 Willibald merl
US2495599A (en) * 1944-11-22 1950-01-24 Pinnick Alfred Castor for furniture and the like
FR1207965A (en) * 1958-09-04 1960-02-19 Rolling furniture leg
US2964778A (en) * 1956-10-08 1960-12-20 Duo Bed Corp Caster

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US581216A (en) * 1897-04-20 Willibald merl
US2495599A (en) * 1944-11-22 1950-01-24 Pinnick Alfred Castor for furniture and the like
US2964778A (en) * 1956-10-08 1960-12-20 Duo Bed Corp Caster
FR1207965A (en) * 1958-09-04 1960-02-19 Rolling furniture leg

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858271A (en) * 1971-11-19 1975-01-07 Bernard Peter Fox Howard Floor-engaging mobile support devices for articles of furniture or the like
FR2167763A1 (en) * 1972-01-07 1973-08-24 Guy Raymond Eng Co Ltd
US3818541A (en) * 1972-01-07 1974-06-25 Guy Raymond Eng Co Ltd Castors
US4069543A (en) * 1975-06-28 1978-01-24 Michael Joseph James Glide castors
US4168558A (en) * 1978-03-13 1979-09-25 Brooks Walker Mount for wheeled suitcases
FR2485446A1 (en) * 1980-06-26 1981-12-31 Trevini Ogtm PIVOTING WHEEL
US4989920A (en) * 1983-05-27 1991-02-05 University Of Virginia Alumni Patents Found. Self-damping caster wheel
US5134753A (en) * 1991-01-18 1992-08-04 Firma Sudhaus Schloss- Und Beschlagtechnik Gmbh & Co. Luggage caster
WO2000006474A1 (en) * 1998-07-30 2000-02-10 Fmc Corporation Material handling unit with multidirectional helical roller assemblies
US6244417B1 (en) 1998-07-30 2001-06-12 Fmc Corporation Material handling unit with multidirectional helical roller assemblies
US6125504A (en) * 1998-09-21 2000-10-03 Richards; Tammy L. Chair caster cover
US6332240B1 (en) * 1999-08-05 2001-12-25 Tsai Mei Wu Wheel assembly for a baby walker or stroller
EP1241970A1 (en) * 1999-11-17 2002-09-25 Lg Electronics Inc. Buffer structured castor wheel for vacuum cleaner
EP1241970A4 (en) * 1999-11-17 2006-08-02 Lg Electronics Inc Buffer structured castor wheel for vacuum cleaner
US7621858B2 (en) * 2004-03-19 2009-11-24 Aileen Sheron Apparatus and method for exercise using an omnidirectional roller
US7877840B2 (en) * 2007-07-23 2011-02-01 Metalurgica Schioppa Ltda. Constructive arrangement applied to swivel castor guards
US20090025177A1 (en) * 2007-07-23 2009-01-29 Metalurgica Schioppa Ltda. Constructive arrangement applied to swivel castor guards
US20090260181A1 (en) * 2008-04-18 2009-10-22 Dennis Jones Caster
US20100229340A1 (en) * 2009-03-11 2010-09-16 Pao-Hsien Cheng Caster
US20110138571A1 (en) * 2009-12-15 2011-06-16 Po-Chuan Tsai Castor that can be Detached and Cleaned Easily and Quickly
US8590907B2 (en) 2010-04-15 2013-11-26 White Pine Concepts Llc Gardening stool
US20130097808A1 (en) * 2011-10-24 2013-04-25 Pipp Mobile Storage Systems, Inc. Caster wheel bumper
US8904597B2 (en) * 2011-10-24 2014-12-09 Pipp Mobile Storage Systems, Inc. Caster wheel bumper
US9108462B1 (en) * 2014-03-03 2015-08-18 Keith J. Stone Industrial caster guard
US20150246579A1 (en) * 2014-03-03 2015-09-03 Keith J. Stone Industrial caster guard
US20170043621A1 (en) * 2014-04-24 2017-02-16 Ingenious Designs Llc Caster wheel assembly
US9914327B2 (en) * 2014-04-24 2018-03-13 Ingenious Designs Llc Caster wheel assembly
US9539858B2 (en) * 2014-05-13 2017-01-10 Radoslaw Illing Shield for a caster wheel
US20150328926A1 (en) * 2014-05-13 2015-11-19 Radoslaw Illing Shield for a Caster Wheel
US9566926B1 (en) * 2015-08-10 2017-02-14 Bryan D. Dubas Wheel guard
US9701269B1 (en) * 2015-08-10 2017-07-11 Bryan D. Dubas Wheel guard
US20210061042A1 (en) * 2019-08-29 2021-03-04 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot
US11701941B2 (en) * 2019-08-29 2023-07-18 Samsung Electronics Co., Ltd. Caster device, robot having the same, and method for driving robot
US20210347204A1 (en) * 2020-05-06 2021-11-11 Mtd Products Inc Caster wheel assembly for an outdoor power equipment machine
US11691456B2 (en) * 2020-05-06 2023-07-04 Mtd Products Inc Caster wheel assembly for an outdoor power equipment machine
USD993759S1 (en) 2020-10-23 2023-08-01 Mtd Products Inc Caster wheel
US11235617B1 (en) * 2020-12-10 2022-02-01 Sam Rabi Platform transport wheel assembly and method of use

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