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7311318 |
A wheel is provided for a conveyance such as a skateboard. The wheel is generally cylindrical in form with a tread surface defining a portion of the wheel adapted to contact an underlying surface upon which the wheel is rotatably support...
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7219452 |
A trench wheel has a relatively thicker wheel center and gradually tapering side walls that produce a thinner wheel as distance from the hub increases. The wheel center is preferably fabricated from stamped metal into a hat or thimble sh...
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7213815 |
A mechanic's creeper ( 10 ) includes a pad ( 12 ) supported between a plurality of side rails ( 14 ) by a plurality of crossbars ( 15 ). The side rails ( 14 ) are of tear-shaped cross section such that no sharp edges are provided adjacen...
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7125083 |
A wheel is provided for coupling to a bearing case at an outer cylindrical surface and a lateral annular surface of the bearing case. The wheel includes an inner wheel portion with an annular body defining a central hole with an inner cy...
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6578930 |
The “ICE WHEELS” consists of a wheel assembly, which permits interchange with in-line skate wheels for use on ice that reduces weight and or the rolling resistance on ice while the wheel is perpendicular to the ice. The wheel consist...
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6322154 |
The "MODIFIED WHEELS FOR ICE" consists of a wheel assembly which permits interchange with in-line skate wheels for use on ice that minimizes damage from fractures in the ice, particularly when the wheel is at an angle from perpendicular ...
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5893569 |
An inline roller skate includes a large number of small, light weight wheels arranged along a downwardly convex arcuate line to form a rocker. Braking elements are disposed along a common axis with at least some of the wheels, the brakin...
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5676428 |
In general, in-line roller skates include a plurality of rollers or wheels mounted in a support on the bottom of a pair of boots. Because of friction between the wheels and the ground, such roller skates do not operate as smoothly as ice...
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5590890 |
An improved roller skate includes a shoe portion, front and rear wheels, and a bracket coupling the wheels to the shoe portion. The have a "generally" spherical shape which allows the skater to maintain a rolling surface of each wheel on...
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5573309 |
An in-line roller skate wheel and truck are described in which an elongated truck frame with a pair of spaced longitudinal side rails mount a plurality of roller wheels. At least one of the roller wheels has a hub core with a coaxial tir...
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5310250 |
An in-line skate wheel is disclosed including a radially symmetrical body where the body is defined by the following: An axial bore surface, a first convex arcuate perimeter surface subsuming less than a 180 degree angle and having a fir...
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5246238 |
A roller skate wheel is constructed for rolling in both the forward and lateral directions of the skate. A plurality of rollers are mounted on the wheel hub, each roller rotatable about an axis tangential to a circle on the wheel axis. T...
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4090283 |
Globular rollers are provided herein. The rollers include one globular or two semi-globular segments of rigid structurally strong material. If it is formed of two semi-globular segments, one of the semi-globular segments is provided with...
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3414280 |
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2570349 |
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2152684 |
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1572567 |
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1332702 |
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0657790 |
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0616773 |
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0011502 |
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