Class 152/327 - Chambered

Subclass of Class 152 - Resilient tires and wheels
Definition: The integral cushion tire is provided with an enclosed hollow
No. of patents: 33
Last issue date: 04/15/2008

Number	Title	Issue Date
7357460	Connecting system for tensile elements An improved connecting system for tensile elements, including a longitudinal tensile element having an end portion and a cross-section thereof, a deformable connecting element; a bracing element, and a tensile axis of applied tensile load along said longitudinal ten...	04/15/2008
7334846	Bicycle wheel rim A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface...	02/26/2008
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
7201194	Non-pneumatic tire A structurally supported tire includes a ground contacting tread portion, a reinforced annular band disposed radially inward of the tread portion, and a plurality of web spokes extending transversely across and radially inward from the reinforced annular band and an...	04/10/2007
7159632	Non-pneumatic bicycle tire A non-pneumatic bicycle tire has a main tire body and at least one rim retaining member. The main tire body includes a rim engagement portion and a ground contact portion with a ground contact surface. The at least one rim retaining member is fixedly attached to the...	01/09/2007
6994134	Structurally supported resilient tire and materials The invention comprises an improved non-pneumatic tire, and particularly a shear layer for a non-pneumatic tire wherein the shear layer comprises an elastomeric composition that includes a metal salt of a carboxylic acid. The shear layer preferably comprises a dieni...	02/07/2006
6983776	Structurally supported resilient tire with bias ply carcass A resilient tire that supports a load without internal air pressure includes a ground contacting tread portion and sidewall portions extending radially inward from said tread portion and anchored in bead portions. A bias ply carcass extends between the beads to supp...	01/10/2006
6974519	Tire core package for use in manufacturing a tire with belts, plies and beads and process of tire manufacture A system for manufacturing an elastomeric tire utilizing a separate formation of a package having a tire core shape and containing tire belts, plies and beads. The package is formed by a laying up of layers of pre-cure elastomer intradigitated with sections of porou...	12/13/2005
6971426	Elastomeric tire with arch shaped shoulders An elastomeric tire with arch shaped shoulders for mounting onto a rim that is manufactured by spin casting or molding methods that includes an annular cavity that is centered under the tire tread having equal thicknesses of side walls and an area under the tread wh...	12/06/2005
6902240	Wheel for an in-line skate A wheel for an in-line skate includes a hub composed of two halves. Each half has a centrally defined axle hole, a hollow cylinder formed on a periphery defining the axle hole, multiple rods formed on the inner side face, multiple indents defined in the inner side f...	06/07/2005
6769465	Structurally supported resilient tire A resilient tire that supports a load without internal air pressure includes a ground contacting tread portion and sidewall portions extending radially inward from said tread portion and anchored in bead portions adapted to remain secure to a wheel during rolling of...	08/03/2004
6431235	Non-pneumatic tire and rim combination A non-pneumatic tire and rim whereto the tire is fitted as a wheel assembly that will display ride characteristics that are similar to those of a conventional pneumatic tire. The non-pneumatic tire is preferably formed from a urethane foam in a spin casti...	08/13/2002
6167931	Inflation-free tire structure An improved inflation-free tire structure for use on light duty vehicles, such as mowers and wheel chairs, has a crude tire, a pair of wheel discs and a bearing. The crude tire is provided with multiple radial plies that are extended over and wound around...	01/02/2001
6116308	Run-flat tire system A run-flat tire system comprising a tire and an tire core disposed therein, the tire core being an annular body of an elastic closed-cell material, the radially outside and inside of the tire core each provided with a circumferentially extending groove, t...	09/12/2000
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
6085815	Pre-pressurized polyurethane skate wheel The present invention is a pre-pressurized in-line skate wheel which is capable of being pressurized at low levels and which further includes an integral bladder device having an annular tube and three bladder rods which are in fluid communication with re...	07/11/2000
5938868	Tire for vehicle The tire for a vehicle comprises a main body of the tire made from a rubber composite material and a rim to form a toroidal space therein, accommodates a toroidal pneumatic tube expandable due to its elasticity in the space for liquid, and the pneumatic t...	08/17/1999
5908519	Hollow core in-line skate wheel having contour conforming polyurethane wall A skate wheel including a hard urethane hub formed with a drop center between radially projecting guide flanges, and including stand-off ribs disposed in equidistant spaced relation thereabout. Pairs of centering fins are spaced axially along a number of ...	06/01/1999
5630891	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 and ...	05/20/1997
5520232	Puncture proof tire A main tire body, mounted to the rim (3) of a wheel, includes in one embodiment, an annular tire material (6) and a fiat wound spring ring (8) disposed within the annular tire material (6). The annular tire material (6) is a material with a cross section ...	05/28/1996
5499669	Reinforced semi-pneumatic tire A semi-pneumatic tire having a radially inner wall, first and second side walls, a radially outer wall coupled between the side walls, and a pair of rib members extending radially inwardly from outer wall for generally rigidifying said outer wall under op...	03/19/1996
5460213	Multiple non-pneumatic tire and process for making it Pural non-pneumatic (NPTs) are unitarily fitted, side-by-side, on a wheel rim, forming a multiple NPT (MNPT) to carry a load by sharing the load between the side-by-side NPTs. By "unitarily" is meant that the NPTs are fitted to the rim as a whole, without...	10/24/1995
5090464	Maintenance-free vehicle and cart tire A maintenance-free, non-pneumatic rubber tire for wheels of slow-moving vehicles such as wheelchairs, push-chairs and carts has a base (14) a rim (15), side walls (13) and a tread (11) of generally constant thickness along the width of the tire. The centr...	02/25/1992
4877071	Three layer cushion tire A cushion tire especially intended for industrial or construction vehicles such as a forklift truck wherein the cushion tire has a triple layered structure comprising a base rubber layer, a middle rubber layer and a tread rubber layer arranged radially ou...	10/31/1989
4733730	Planter gauge wheel The sidewall of the zero pressure tire of a combined gauge wheel and slicing disc assembly includes an annular sealing surface in axial engagement with the disc which is not pulled away from the disc by flexing of the tire tread during operation of the ag...	03/29/1988
4514243	Tire for wheelchairs and the like A tire for a wheelchair wheel or the like in the form of a composite extrusion comprising a relatively soft, elastomeric casing extruded over a semirigid core. End faces of a length of extruded stock are joined by thermal fusion developed by a ferromagnet...	04/30/1985
4467852	Tire for lorries A lorry tire which is filled with compressed air during normal operation and which has the necessary stability for continued movement and has adequate running properties even in the case of a loss of air, due to its low height to width ratio, its flat tre...	08/28/1984
4430952	Planter gauge wheels with adjustable equalizer mechanism A row crop planter unit (11) is supported by a pair of laterally spaced wheel and disc assemblies (56, 57) mounted on corresponding ends of a pair of walking beams (58, 59). The other corresponding ends of the walking beams (58, 59) are interconnected by ...	02/14/1984
4273176	Non-pneumatic tire A solid monolithic tire for use on a wheel rim can be improved by incorporating within the tire a circumferentially extending tunnel formed on the inside of the tire body. Further, the tire body has inclined side walls that converge outwardly to form a V-...	06/16/1981
4077452	Wide elliptical tire having enlarged reinforcing structure at hub A tire having a wide bearing surface and including reinforcing shoulders at the lateral extremities of a transverse hub, the hub, shoulders and casing being of unitary, monobloc construction....	03/07/1978
4033395	Continuous plastic tire body and tire A tire suitable for all types of wheels, including vehicles and wheels, such as in automobiles, motorcycles or bicycles, in which the tire body is an extruded or molded plastic material formed in indeterminate length complete with conventional tread and s...	07/05/1977
3948303	Replaceable resilient tire A replaceable resilient tire particularly adapted for mounting on a wheel of a low velocity vehicle, such as a wheel chair, tricycle, bicycle and the like. The mounting of the tire on the rim of a wheel may be accomplished without the use of special tools...	04/06/1976

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Class 152/327 - Chambered