Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7334617 | Solid rubber tire with flexible hub and replaceable tire tread A solid rubber tire with a flexible drive hub having a multiplicity of hub ribs and grooves formed around the periphery of the flexible drive hub and a solid rubber tire tread replaceably mounted on the flexible drive hub having a multiplicity of interior tread groo... | 02/26/2008 |
| 7311318 | Troughed skateboard wheels 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 supported. The tread surface include... | 12/25/2007 |
| 7210747 | Spinner for a roller skate A spinner apparatus for the adornment of a wheel on a roller skate. The spinner apparatus includes a cone, a first disc and a second disc. The cone is connected to the wheel and connected to the first disc by locating a lip on its periphery in groove on the peripher... | 05/01/2007 |
| 7125083 | Wheel with dual density 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 cylindrical surface and a later... | 10/24/2006 |
| 7032980 | Non-slip wheel for a child's toy A wheel for a child's toy formed from a first and second section. The first section is made from a material having a Shore A durometer of 100 or less. The second section is disposed within the first section. The second section is made from a rigid material and provi... | 04/25/2006 |
| 7011317 | Cart wheel with bearing components A wheel assembly for a material handling cart includes a wheel hub having first and second openings in first and second hub faces, each concentric with and extending along a central axis of the wheel hub. First and second ball bearings are located in the openings. I... | 03/14/2006 |
| 6979003 | Heeling apparatus and method A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or sli... | 12/27/2005 |
| 6953225 | Dual hardness skateboard wheel A multi-element skateboard wheel having at least two different hardness surfaces including a softer center exterior surface and a harder side exterior surface. The softer center surface is the principal weight supporting surface which, because of its lower durometer... | 10/11/2005 |
| 6592189 | Skate wheel A skate wheel includes an outer polymeric layer, an inner polymeric layer, and an intermediate layer. The inner polymeric layer has a hardness which is less than the hardness of the outer polymeric layer. The inner and outer polymeric layers are preferabl... | 07/15/2003 |
| 6482140 | Roller and method of producing the same A roller is structured so that one or a plurality of grooves are recessed on an outer peripheral surface of an outer race in a bearing, a part of a synthetic resin tire integrally adhered to the outer race of the bearing is inserted and welded within a gr... | 11/19/2002 |
| 6227622 | Multilayer skate wheel A skate wheel and method of making the same are provided. The skate wheel includes multiple materials of differing durometers disposed on an inner hub. First, a solid or microcellular urethane is seated on an outer rim of the hub in a ring configuration a... | 05/08/2001 |
| 6102091 | Hollow core pneumatic wheel having contour conforming polyurethane wall A urethane wheel including a hard urethane hub formed with a rim facing radially outward, and including stand-off ribs spaced equidistant thereabout. The stand-off ribs having centering notches opening radially outward. A thin wall polyurethane annular bl... | 08/15/2000 |
| 6068343 | Skate wheel An in-line skate wheel including a hub that positions and supports a bladder generally about the center line of the hub. The wheel hub comprises an inner surface forming a bore for receiving a wheel axle, an outer circumferential surface spaced from the i... | 05/30/2000 |
| 6050648 | In-line skate wheel An in-line skate wheel includes an polyethylene closed cell foam ring surrounding the outer cylindrical surface of a hard plastic hub. Polyurethane is molded onto the outer cylindrical surface of the hub and surrounding the polyethylene ring. The polyethy... | 04/18/2000 |
| 5979993 | Roller skate wheel assembly A skate wheel includes a gas-filled tire tube that is secured to the tire rim of a bearing frame by molding a cover layer around the tube and frame to form an integrated wheel assembly which provides buffering and shock-absorbing functions during skating.... | 11/09/1999 |
| 5979992 | Hub and wheel assembly for an in-line skate A wheel assembly for use on wheeled devices such as in-line skates. The wheel assembly includes a hub having plurality of support elements radially extending from the exterior of the hub. Each of said plurality of support elements has a first end that is ... | 11/09/1999 |
| 5971495 | Roller skate wheel assembly A skate wheel includes a gas-filled tire tube that is secured to the tire rim of a bearing frame by molding a cover layer around the tube and frame to form an integrated wheel assembly which provides buffering and shock-absorbing functions during skating.... | 10/26/1999 |
| 5967618 | In-line roller skate wheel An in-line roller skate wheel is formed of a polyurethane tire injection molded onto a plastic hub, also formed by injection molding. The hub includes semicircular recesses along the outside rim to prevent the tire from slipping with respect to the hub. T... | 10/19/1999 |
| 5942068 | Method for making a non-metallic fiber reinforced wheel A method for making a non-metallic, fiber reinforced wheel for an in-line skate and similar rolling articles. Resin impregnated carbon fibers are compression molded to form a high strength and very stiff (i.e. rigid) annular hub having a central channel e... | 08/24/1999 |
| 5924705 | Single-track roller skate and wheels for use therewith Single-track roller skate comprising at least three wheels which are disposed one behind the other and the rolling faces of which comprise in the cross-section substantially identical curvatures, wherein at least one front and/or rear wheel comprises at l... | 07/20/1999 |
| 5897170 | Skate wheel and method for making The present invention relates generally to a hub for a skate wheel. The hub includes a central core member defining a bore for receiving an axle. A central axis of rotation passes through the center of the bore. The hub also includes first and second anch... | 04/27/1999 |
| 5860707 | In-line skate wheel An in-line skate wheel includes an polyethylene closed cell foam ring surrounding the outer cylindrical surface of a hard plastic hub. Polyurethane is molded onto the outer cylindrical surface of the hub and surrounding the polyethylene ring. The polyethy... | 01/19/1999 |
| 5839814 | Miniature centrifugal lighting assembly A miniaturized lighting apparatus for a rotating object includes a light-emitting diode (LED), a centrifugal switch, a tiny 3 volt power source, and electrical conduits. The switch is configured to provide power to the LED only upon application of a speci... | 11/24/1998 |
| 5797658 | Skate wheel A wheel for an in-line skate includes a hub having a central core. First and second anchors extend radially from the core. The anchors are positioned on the core in spaced apart relation to define a material receiving volume between the anchors. A synthet... | 08/25/1998 |
| 5725284 | Wheel for in-line skates There is disclosed an improved skate wheel for an in-line skate comprising a hub for rotation about an axis and a plurality of layers of material disposed concentrically about the hub, each of the layers consisting of a material having a predetermined dur... | 03/10/1998 |
| 5632829 | Pneumatic in-line skate wheel A pneumatic in-line skating wheel having a tire body and central hub chemically bonded during a polyurethane casting process and further including an annularly encapsulated air bladder centrally spaced within the tire body to provide shock absorption. The... | 05/27/1997 |
| 5513861 | In-line roller skate frame Improved support and adjustment of the frame on the boot are obtained by providing mounting brackets that extend transversely outwardly and beyond the underlying side walls between which the roller wheels are mounted and that contain transverse mounting s... | 05/07/1996 |
| 5411320 | Wheels that provide lateral friction on ice The "WHEELS THAT PROVIDE LATERAL FRICTION ON ICE" consists of a wheel with a set of grooves around its outer exterior circumference. Said outer exterior circumference may be either flat or angled as viewed from a point perpendicular to the center of the a... | 05/02/1995 |
| 5320418 | Skate wheel structure This invention provides for a skate wheel structure including an outer arcuate shell (1) molded to an inner barrel (2). The outer arcuate shell (1) includes a series of spaced apart arcuate shell segments (20) which are joined each to the other by bridge ... | 06/14/1994 |
| 5275473 | Shopping cart wheels with polymeric bearing races An improved shopping cart wheel which includes a hub which has bearing supporting cavities. The outer bearing is fabricated from a polymer, and the inner bearing is likewise fabricated from a polymer and has a cylindrical portion which extends into the ce... | 01/04/1994 |
| 5129709 | Wheel for roller skate and the like A wheel adapted to be rotated about a normally horizontal axis perpendicular to a normal direction of travel has a hub centered on the axis and a central core body made of a hard material and coaxially surrounding the hub. This core body has an annular ou... | 07/14/1992 |
| 5028058 | Hub and brake assembly for in-line roller skate An in-line roller skate includes a new lightweight frame and brake of synthetic material and embodies structurally interacting components which cooperate to counter and absorb the strain and shock of road bumps and vibration encountered at high speeds by ... | 07/02/1991 |
| 4592595 | Wheel construction of shopping carts and the like A wheel construction especially adapted for use with a shopping cart and the like, including a wheel of a first relatively inexpensive material comprising a central hub defining a central opening providing an axis of rotation for the wheel, a rim, and web... | 06/03/1986 |
| 4070065 | Wheel for skateboards and roller skates A molded plastic wheel is formed with a thin annular groove extending inwardly from its outboard end so as to provide a resiliently yieldable, radially thin peripheral tread portion backed up by a thick relatively rigid band of material on the radially in... | 01/24/1978 |
| 4040670 | Method of molding a skate wheel having a polyester core and a polyurethane case and the product thereof A method of making a skate wheel is formed of a transparent, high strength rigid core having a high degree of clarity, which firmly secures and positions a pair of inner bearing races. A transparent wear resistant resilient wheel casing is injection molde... | 08/09/1977 |
