Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7284299 | Caster A moveable body includes at least one caster. The caster has a yoke, a wheel supported on the yoke, and an interface member for attaching the caster to the moveable body. Additionally, the caster is configured so that a noise level of the moveable body as the moveab... | 10/23/2007 |
| 7234200 | Furniture glide assembly A glide assembly is adapted to be mounted to the free end of a leg of a piece of furniture. The glide assembly includes a body defining an exterior and a bore extending partially through the body to define a hollow interior surface and an open end of the body. An in... | 06/26/2007 |
| 7134167 | Structure of a connecting shaft mechanism of a caster assembly A caster includes a wheel, and a connecting shaft mechanism for holding the wheel in position; the shaft mechanism includes a sleeve consisting of two half parts, and a supporting shank member, which is held in the sleeve at an upper end, and with which the wheel is... | 11/14/2006 |
| 7128494 | Method and apparatus for securing a caster wheel An integrally formed caster socket is provided in a tubular framing member for a merchandising display or the like. The framing member has aligned stem receiving holes with the upper hole being on an outwardly domed frusto-conical shaped area and the lower hole is o... | 10/31/2006 |
| 7017228 | Pneumatic locking swivel caster A pneumatic locking swivel caster comprises a swivel caster and a locking device which may be activated by fluid pressure. The swivel caster may be a dual wheel swivel caster. An improved theatrical prop or scenery element comprises a pneumatic locking swivel caster... | 03/28/2006 |
| 6463624 | Joint structure of a wheel bearing A joint structure of a wheel bearing comprises a bearing cover and a pivotal casing. The bearing cover has an outer edge being installed with a plurality of upper sheets which expand outwards; and between two upper sheets are formed with a downward extend... | 10/15/2002 |
| 5881980 | Leg assembly An adjustable leg assembly comprises an outer tube and an inner tube subassembly. The inner tube assembly comprises an inner tube, a floor support at one end of the inner tube, an expandable bushing at an opposite end of the inner tube, a rod extending th... | 03/16/1999 |
| 5052075 | Apparatus and method for securing a caster to an object having a hole An apparatus for securing a caster to an object having a hole with interior walls has a tubular body with upper and lower ends, the lower end being adapted to connect to a caster and the upper end being split and defining at least two upwardly extending f... | 10/01/1991 |
| 5010621 | Glide assembly with inside holding clip An inner-gripping glide assembly with an outer sleeve for mounting upon the end of a tubular member, which glide has an upright pedestal with outwardly extending gripping prongs for insertion into the tubular member and wherein a relatively wide gap is pr... | 04/30/1991 |
| 4854008 | Detachable castor support for a baby carriage This invention relates to a detachable castor support for a baby carriage and in particular to one including a body portion having a vertical shaft with a pivot hole and a protuberance, a stand having a rectangular recess having two sides each formed with... | 08/08/1989 |
| 4621849 | Bumper for wheel well A bumper for the wheel well of a dolly or cart consists of a single element molded of flexible plastic material to include a cap, a lock and a hinge connecting the cap to the lock. The wheel well is adapted to receive a swivel shaft that extends through a... | 11/11/1986 |
| 4282628 | Tilted axle caster An enclosed axle, inclined wheel caster including a generally disc like pivot support, or body frame member, which may be flat or dished, carrying an axle and a supporting wheel member rotatably mounted on the axle, both of such members being made from st... | 08/11/1981 |
| 4092031 | Tracked support for a cabinet A tracked support having a large load-bearing area is provided for movably supporting a cabinet. The support comprises an elongated horizontal carrier mounted to the cabinet and a continuous flexible track is formed into an encircling band and rotatably m... | 05/30/1978 |
| 4037292 | Universal stem for a carpet caster A self-tracking carpet caster of the inclined-disc type is disclosed, and the geometric relationships of its components and angles of inclination for optimum operation are defined. Lint protection means including a flexible sealing skirt and a grooved tra... | 07/26/1977 |
