Abstract: There is provided a traction cover for a wheel. The wheel has an axle, a tire, and a tire support that supports the tire, and the cover has a tread body having an inner engagement surface and an outer tread surface, the inner engagement surface being sized to engage an outer drive surface of the tire. The cover also has attachment points carried by the inner engagement surface of the tread body, an anchor secured relative to the tire support, and one or more attachment members attached between the anchor and the attachment points of the tread body.

Abstract: A tire is configured to be received by a wheel having at least one angled surface. The tire includes a tread portion, a first sidewall, and a second sidewall. The first sidewall has a first outer surface, a first inner surface, and a first projection extending inwardly from the first inner surface. The first projection has a first angled surface configured to engage a first corresponding surface of a wheel. The second sidewall has a second outer surface, a second inner surface, and a second projection extending inwardly from the second inner surface. The second projection has a second angled surface configured to engage a second corresponding surface of the wheel.

Abstract: A ride on toy vehicle comprising a vehicle body. The body having an upper surface that is molded in shape of a seat including a saddle having a laterally widened rear end portion and narrow front end portion. The upper surface of the body configured to vertically receive a detachable handle where the handle is projecting upwardly from the upper surface of the body when mounted in the upper surface of the body. The detachable handle is configured to form a grip for the rider. The body of the vehicle having a bottom surface configured to protrude outwardly from the body at each horizontal end of the bottom surface to act as a safety bumper. The bottom surface has independent holes at each of its four corners. A wheel assembly independently inserted in each independent hole at the bottom surface.

Abstract: An agricultural tool used to form furrows includes a generally cylindrical support and a plurality of tires. Each tire includes a sole by way of which the tire is mounted on the support, a tread opposite the sole (3) and two sidewalls that connect the tread to the sole. The sole, the tread (5) and the sidewalls jointly form a deformable casing. The tread of at least one of the plurality of tires has a generally domed shape. The sidewalls of this tire are generally inclined radially. The domed shape of the tread and the inclination of the sidewalls are such that the deformation of the casing urges the sole axially outward.

Abstract: The present invention is related to a cushion (1) for a respiratory mask, to a method of manufacturing such a cushion (1) as well as to a respiratory mask including a cushion (1) and an apparatus for manufacturing a cushion (1) for a respiratory mask. It is particularly referred to a method of manufacturing a cushion (1) for a respiratory mask, comprising the steps of providing a mold comprising at least two mold halves (11, 13) and at least one core (12) therein, closing the mold, injecting a first material into the mold to form the cushion (1), wherein the core (12) is enclosed by the cushion (1) thereby forming at least one cavity (4), opening the mold, removing the core (12) from the cushion (1) to provide the at least one cavity within the cushion (1), and sealing the cavity (4).

Abstract: A tire for planting equipment is disclosed, the tire composed of a tire material and comprising: a rim-mounting surface, a first side wall having a thickness, a second side wall having a thickness, and a contact wall having a thickness and defining a contact area; the first, second, and contact walls defining a hollow channel, and the second side wall having a tapered portion and disc contact portion. A method for manufacturing a seeder tire of variable hardness is also disclosed, the method comprising the steps of: introducing a first polyurethane compound having a first hardness value into a first portion of a tire mold; allowing an amount of time to elapse wherein the first polyurethane compound will gel; and introducing a second polyurethane compound having a second hardness value into a second portion of the mold.

Abstract: A tire tread comprising a rubber composition based on at least: (i) a diene elastomer; (ii) more than 50 phr of a reinforcing inorganic filler; (iii) between 2 and 15 phr of a coupling agent; (iv) an unsaturated metal carboxylic acid salt. This tread has, after mechanical running-in of the tire comprising it, a rigidity gradient which increases radially from the surface towards the inside of the tread, imparting to the tire an improved compromise of grip/behavior properties. Use of such a tread for the manufacturing or recapping of tires. Tires comprising such a tread.

Abstract: 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 dienic elastomeric composition that includes a metal salt of a carboxylic acid. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate, and a peroxide curative agent is employed.

Abstract: 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 support the sidewalls. A reinforced annular band is disposed radially inward of the tread portion. The band comprises an elastomeric shear layer at a radially outer side of the bias ply carcass and a membrane adhered to a radially outward side of the elastomeric shear layer. Each of the bias ply and membrane has a longitudinal tensile modulus sufficiently greater than the shear modulus of the shear layer so that when under load the ground contacting portion of the tire deforms to a flat contact region through shear strain in the shear layer while maintaining constant the length of the membranes.

Abstract: 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 whose slope outwardly into shoulder that the side walls upper ends intersect that have greater thickness and which side walls lower ends include beads that are each spaced a selected distance from the surfaces of the side wall ends that slope upwardly from inner to outer surfaces and with the tire preferably including plies that extend across the tire having ends that wrap around the beads and belts fitted around the tire circumference, above the plies, and including porous spacers fitted between the layers of plies and belts to pass a flow of the elastomeric material therethrough during tire formation.

Abstract: 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 face and alternate relative to the rods, multiple segmented protrusions formed on a face of the skirt, multiple cutouts defined in the face of the skirt and alternate relative to the segmented protrusions and slits defined in the face of the skirt and a tire securely mounted on an outer periphery of the hub. Thus the rods from one half are inserted into the indents of the other half and the segmented protrusions from one half are inserted into the cutouts of the other half and the assembly of the wheel is accomplished.

Abstract: 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 dienic elastomeric composition that includes a metal salt of a carboxylic acid. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate. In one embodiment of the invention, the metal salt of the carboxylic acid is zinc diacrylate or zinc dimethacrylate, and a peroxide curative agent is employed.

Abstract: 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 the tire. A reinforced annular band is disposed radially inward of the tread portion. The band comprises an elastomeric shear layer, at least a first membrane adhered to the radially inward extent of the elastomeric shear layer and at least a second membrane adhered to the radially outward extent of the elastomeric shear layer. Each of said membranes has a longitudinal tensile modulus sufficiently greater than the shear modulus of said shear layer so that when under load the ground contacting portion of the tire deforms to a flat contact region through shear strain in the shear layer while maintaining constant the length of the membranes.

Abstract: An elastomeric tire for mounting onto a rim that is manufactured by casting or molding methods to include an interior arch shaped cavity that is centered under the tire tread to have at least one hundred forty (140) degrees and not more than one hundred seventy (170) degrees of arc, and with the cavity arch duplicated around the tire exterior, below the tire tread. A uniform tire wall thickness is provided that is selected for a particular anticipated load as the tire will carry, with the tire side wall ends maintained at the rim aligned ends, supporting the load carried by the tire in compression, and with the tire, at atmospheric pressure, providing ride and wear characteristics that are comparable to a pressurized pneumatic tire carrying a like load, and which tire of the invention interior arch shaped cavity can be pressurized to add to its inherent load supporting character to safely support even greater loads.

Abstract: 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 casting process with the formed tire having a dense thread, with a less dense internal mid-section and is least dense at a lower area proximate to the tire inner circumference.

Abstract: 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 the wire beads disposed on inner parallel peripheral rims of a tire and further led to the middle or bottom portion of the rubber side walls of a tire so that the strength of the tire is reinforced. Each wheel disc provided with a flanged rim has a central through hole with four holes disposed on the periphery thereof so as to permit the bearing to be guided through the two wheel discs and fixed in place. The tire has a central hole with which a wheel disc is in snap engagement. The diameter of the rim of the central hole of the tire is smaller than the diameter of the flanged rim of a wheel disc so that the tire can be sealedly engaged with each wheel disc in assembly.

Abstract: 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, the radially inner groove extending radially outwardly beyond a bead core line being drawn between the centers of the bead cores. When the tire is mounted on a standard rim, the radially outer groove forms a radially outer space extending circumferentially of the tire and having a cross sectional area of from 1 to 6% of the total sectional area of the tire cavity, and the radially inner groove forms a radially inner space extending circumferentially of the tire having a cross sectional area Si of from 10 to 25% of the total sectional area S of the tire cavity.

Abstract: 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 bladder with an interior annular stand-off skirt facing radially inward, contacting the centering notches of the stand-off ribs, and cooperating to position the bladder both radially and axially about the rim. The tire body is formed of soft polyurethane which surrounds the rim, encapsulates the bladder creating and integral cavity, and forms a contoured surface. A method of manufacturing the wheel which includes selecting a pressurized annular bladder, locating the bladder both axially and radially about the rim, forming a concentric bridge space having axial communication channels between the rim and bladder, and then pouring liquid urethane in a mold to form the tire.

Abstract: 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 respect to each other. The wheel is configured with a rigid polyurethane hub formed with a drop center and further having a pair of radially extending flanges with three pairs of axial openings. The hub is further formed with three radially projecting spokes. The tire body surrounds the bladder device and is constructed of a generally more resilient polyurethane which bonds to the hub, flanges and bladder. The method of manufacture utilizes blow molding techniques for the bladder device which includes a post vulcanization chlorine bath. The tire body is formed using liquid thermoset polyurethane poured into an open cast mold.

Abstract: 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 tube has a smaller volume than that of a form obtained by depressing the space for liquid to a desired level by a road surface at the point of time when the tube is filled with air at a specified pressure required for supporting a load imposed on the tire, and the space for liquid in the depressed form which is outside of the tube is filled with liquid so that a desired ground contact area of the tire can be obtained under the load.

Abstract: 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 stand-off ribs thereby forming a central groove along the drop center. An annular bladder with an interior annular stand-off skirt is nested within the centering fins and concentric with the drop center. The wheel body is formed of a soft polyurethane and surrounds the drop center and encapsulates the annular tube, thereby forming a contoured surface. A method of manufacturing the wheel that includes selecting a welded seam annular tube, pre-pressurize it and then further pressurize it through the exothermic reaction by pouring liquid urethane in a mold to form the tire.

Abstract: 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 inflation/deflation means such that the overall tire resiliency may be adjusted, enabling adjustable performance characteristics of the wheel.

Abstract: 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 that can form in a semi-circular annular space (7) between the rim (3). The flat wound spring ring (8) a is annularly arranged within the annular space (7). In another embodiment, the main tire body includes an annular first tire material (10), a second tire material (11), and a plurality of airtight chambers (15) which help to absorb impacts. The first tire material (10) is mounted to the rim (3). The second tire material (11) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. The airtight chambers portion (15) are formed in the second tire material between the first tire material. In another embodiment, the main tire body includes an annular first tire material (20), and a second tire material (21).

Abstract: 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 operating loads. The side walls include a radially outer portion and a radially inner portion, the inner portion being thicker and more rigid than the outer portion such that the radially outer wall abuts against the inner portion of the side walls when the outer wall shifts radially inwardly under operating loads.

Abstract: 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 cutting or sectioning. With this construction, a MNPT is provided with characteristics which are surprisingly better than those attributable to a single NPT having the same or a different outer hoop diameter but the same mass of resin as the plural NPTs. The NPTs may be formed as rings, then by heat-distending them, unitarily post-fitted to the surface of an adhesively prepped wheel rim, for operation at relatively low torque; alternatively, and more preferably the NPTs are cast or otherwise thermoformed, as for example by injection molding, onto the wheel rim and self-adhesively autogenously secured, so as to provide the plural NPTs integrally bonded to the wheel rim.

Abstract: 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 central region of the tire has one or two continuously annular empty space(s) (16) dimensioned to control the spring constant of the tire to a desired value. The tire also contains reinforcement e.g. in the form of a layer of cord (17) or spiral wire.

Abstract: 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 outwardly in that order, and the middle rubber layer is provided with a hollow part extending circumferentially of the tire, whereby the ride is softened while durability and driving stability are maintained at a good level.

Abstract: 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 agricultural equipment on which the assembly is used.

Abstract: 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 ferromagnetic element inserted in the tire and exposed to high frequency electromagnetic radiation.

Abstract: 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 tread curvature and its relatively rigid and thick sidewalls.

Abstract: 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-shaped cross section. The apex of this V-shaped cross section forms the tread portion of the tire. Each of the side walls of the tire terminate in a thickened portion which forms a bead shoulder capable of seating on the bead flanges of the wheel rim to which the tire is mounted. Extending down through the thickened portion of either side of the tire is a bead which has a lower bead wall on the portion most distal to the thickened portion. A bead cord extends circumferentially embedded within the bead near the lower bead wall. The process by which the tire is formed allows the bead cord to be positioned in its appropriate place within the bead.

Abstract: 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.

Abstract: 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 shape means to fit the usual rim of a wheel. The tire is completed by cutting a length from the indeterminate length of tire body equivalent to the rim size of the wheel for which it is intended, then bonding the ends together. The finished tire may then be stretched and snapped on the wheel frame or rim.

Abstract: 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, and by a person having little or no mechanical skill. The tire is of light weight, has a small transverse cross section, has good roll ability, and can be manufactured from a wide choice of extruded resilient rubber compounds or polymerized resins at a substantial saving of cost. A tensioned nylon rod of circular shape is disposed within the confines of the tire and exerts a radially directed force on the tire to maintain it in a fixed position on the rim.