# US 7,610,682 B2 · Method of affixing a caster on a wooden or plastic furniture leg

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- Number: US 7,610,682 B2
- Document ID: US7610682B2
- Status: Granted
- Kind: B2
- Application number: 11/542,655
- Filed: 2006-10-03
- Published: 2007-04-05
- Granted: 2009-11-03
- Earliest claimed: 2000-03-03
- Assignees: Finger Lakes Intellectual Property, LLC
- Inventors: Richard S. Polevoy; Howard Scott Ryan; Paul Eric Carlson
- Web page: https://patentgrep.com/patent/US7610682B2

## CPC

- A47C 19/024: {Legs}
- A47C 7/006: {with castors}
- B60B 33/00: Castors in general {; Anti-clogging castors} (castors for large containers B65D90/18)
- Y10T 29/49696: Mounting
- Y10T 29/4984: Retaining clearance for motion between assembled parts
- A47C: CHAIRS; SOFAS; BEDS
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A caster and leg assembly for supporting a piece of furniture on a floor. The assembly includes a caster affixed within a recessed area formed in the bottom of a wooden or plastic furniture leg to create a strong support for the furniture as well as create a good appearance. The caster has at least one spherical roller supported within the housing to allow the furniture to be readily movable omnidirectionally. With one spherical roller, the weight of the furniture acts at the center of the spherical roller. In one embodiment, there are three spherical rollers located equidistant from the vertical center line of the assembly to support the furniture weight equally by the spherical rollers. A glide can be readily attached and detached from the bottom of the caster and, when attached, the glide cup covers the spherical rollers and presents a flat, planar bottom surface.

## Claims

### Claim 1

A method of affixing a caster onto a wooden or plastic furniture leg of a piece of furniture, said method comprising the steps of:
forming a recessed area in the lower end of a wooden or plastic furniture leg,
providing a caster comprising a housing containing at least one spherical roller, said at least one spherical roller adapted to contact a generally planar surface for supporting the piece of furniture, the caster having a plurality of spherical balls located in an area intermediate said at least one spherical roller and said housing, an annular recess formed in said housing and extending upwardly from said intermediate area, said spherical balls adapted to move in a continuous circulatory path within said annular recess in said housing wherein said spherical balls are not in contact with said at least one spherical roller and said spherical balls enter said intermediate area from said annular recess by means of gravity, wherein said at least one spherical roller is freely rotatable under load to allow movement of the piece of furniture in any direction; and
affixing the housing of the caster within the recessed area of the furniture leg.

### Claim 2 (depends on 1)

The method of claim 1 wherein the step of forming a recessed area comprises molding a recessed area in the lower end of a plastic furniture leg.

### Claim 3 (depends on 1)

The method of claim 1 wherein the step of forming a recessed area comprises cutting a recessed area in the lower end of a wooden furniture leg.

### Claim 4 (depends on 1)

The method of claim 1 wherein the step of affixing the caster within the recessed area comprises affixing the caster so as to substantially enclose the caster housing within the recessed area.

### Claim 5 (depends on 1)

The method of claim 1 wherein the step of providing a caster comprising a housing containing at least one spherical roller comprises providing a caster comprising a housing containing three spherical rollers having center points forming a equilateral triangle.