Abstract: Provided are tractor wheels for a downhole tractor. An example tractor wheel comprises a series of continuous springs disposed on the circumference of the tractor wheel, wherein the individual continuous springs in the series of continuous springs are separated by a gap, and a void disposed on the interior of the tractor wheel and that is continuous about the circumference of the tractor wheel.

Abstract: A protector shield for a sidewall of a motor vehicle tire, and to a wheel assembly for a motor vehicle incorporating this protector shield is provided. This protector annular shield is configured to be mounted on a wheel rim receiving said tire. The protector shield includes at least two concentric shield rings having a first shield ring and a second shield ring which are axially juxtaposed and which respectively include, substantially arranged end to end in a circumferential direction, a plurality of first arcuate sectors and a plurality of second arcuate sectors which angularly overlap each other, so that every two consecutive second sectors are substantially arranged end to end axially in front of a first sector short of both ends of this first sector.

Abstract: Tire blocks are described. The techniques described herein may enable multiple blocks of foam to substantially fill an inside of a tire. Each of the blocks used to fill a tire may have a wedge shape and a rigidity that is sufficient to operate the tire without air pressure. The wedge shape of each of the tire blocks has sides that may be positioned at least partially against sidewalls of the tire and sides that may be positioned against other blocks of foam. The tire can then be inflated to the desired air pressure for operation. Because of the density of the foam and the wedge shape design, a failed tire can still be used for normal operation.

Abstract: A cellular tire liner and air chamber system for pneumatic tires comprising a cellular tire liner interposed between the interior surface of a tire and an air chamber with an annular interface that extends from the air chamber to the interior surface of the tire, in the tread area of the tire and disconnects the sidewall portions of the tire liner from each other.

Abstract: A durable, airless, chainless bicycle multiple riders of differing heights is disclosed. The bicycle is propelled by a drive shaft instead of a chain, making the drive assembly more dependable. The tires are made from a solid material and cannot go flat. The frame and other components of the bicycle are either inherently rust resistant or are coated to increase their rust resistance. The bicycle also has a front basket that is mounted such that the basket does not turn when the front wheel turns. Finally, the bicycle has a seat adjustment mechanism which allows the seat height to be adjusted without tools.

Abstract: A hollow EVA foam tire structure includes a tire, a core and a rim. The core includes a plurality of sections substantially arranged into an annular shape and being hollow on both sides. A plurality of protruding block sections is disposed on the internal side of the flange section of the core extended from the accommodating space of the tire, and both sides of the tire are covered by the rim having two corresponding external flange surfaces at the external sides. Pointed splinters are disposed on the external flange surface and protruding block sections are protruded from the rim. Thus, the protruding block sections of the wheel core are alternatively and mutually engaged. Therefore, when the two corresponding rims are securely coupled, the pointed splinters of the rim can be pierced and fixed into the tire, and the internal side of the tire is embedded into the hollow section of the wheel core by a compressing force.

Abstract: A cellular tire liner and air chamber system for pneumatic tires comprising a cellular tire liner interposed between the interior surface of a tire and an air chamber with a substantial portion of the air chamber being essentially vee shaped and an annular interface that extends from the air chamber to the interior surface of the tire and disconnects the sidewall portions of the tire liner from each other.

Abstract: Motor vehicle wheel including a wheel rim and a tire having a tire interior enclosed by the wheel rim and the tire. The tire is mounted on the wheel rim, and the wheel also includes an insert composed of a ring-shaped sound-absorbing material that is positioned within the tire interior. The wheel further includes an acoustically transparent support element having tensile strength, at least in a circumferential direction of the tire, that is coupled to the insert.

Abstract: The invention relates to a novel wheel which serves for equipping with a pneumatic tire and essentially realizes two apparently incompatible properties of solid rubber tires and pneumatic tires, namely strength and good shock absorption, in a single wheel. This wheel is distinguished by the fact that it has a toroidal hollow foam member enclosed by the pneumatic tire and comprising reversibly deformable material having a large number of enclosed cavities serving for the absorption of gas. The substantial advantage of the tire according to the invention is obvious. Damage to the tire skin by a stone or nail does not in fact inevitably lead to an immediate and complete loss of air, as is often the case with known tires. Thus, the toroidal hollow foam member can itself store air in its cells, which not only permits continued riding for a certain time but also reduces the risk of accidents in the event of damage to the tire.

Abstract: In a tire inflation insert of the present invention, a tire casing contains a ring having a plurality of air filled spaces or pockets. The tire inflation insert comprises a roll of a flexible sheet, wrapped with a securing belt of material such as tape, which is formed into a ring for insertion into the tire casing. The flexible sheet comprises rubber or plastic sheeting or other flexible material having a plurality of air pockets therein although flexible foam material may also be used. In some cases non-resilient foam may be introduced into the tire casing in the form of a liquid mixture which chemically reacts to form a non-resilient foam and fills the entire cavity thereof. Such non-resilient foam is currently used in packaging materials where chemicals are mixed as they are introduced to the cavity and the chemical reaction causes foam to form within the cavity forcing air out of any cavity and completely filling the same with foam having a plurality of cavities.

Abstract: A solid tire which is high in load-bearing capacity, while maintaining as high a resilience as a conventional hollow tire, and capable of sufficiently absorbing shocks while the vehicle is traveling with no cargo. It has an annular rubber member fitted in a rim of a wheel, and a tire fitted on the annular rubber member around its outer periphery. The annular rubber member has a groove formed in the outer surface thereof so as to extend along a ridge circling the outer surface of the annular rubber member. The groove expands axially of the tire toward the rim. When a small, impulsive load is applied to the annular rubber member, its portions on both sides of the groove are resiliently bent to absorb the load. When a larger load is applied continuously for a long time, the entire annular rubber member is resiliently compressed to bear the load.

Abstract: A wheel, preferably adaptable for use with a skate, is provided having a semi-permanent stiffness-modulating insert. The wheel comprises a toroidal wheel component having a hollow toroidal core which can be filled with a stiffness-modulating material. The wheel is split along a line from the inner circumference of the toroidal wheel component to the inner circumference of the core so as to allow for insertion of the stiffness-modulating material. The toroidal wheel component is preferably molded with the split edges slightly spaced apart from each other. In use the edges are held together in abutment with each other or with a toroidal spacer placed between them, preferably by wheel hubs engaging with each other and with the toroidal wheel component of the wheel.

Abstract: A solid, monolithic bicycle tire made of urethane rubber with a cured hardness of from 60 to 70 Durometer A. The tire is formed with a pair of laterally spaced bead shoulders that seat on the bead seats of the wheel rim, and is generally triangular in cross-section, with radially outwardly converging, slightly concave side walls that merge into a relatively narrow tread section. A circumferential, arch-shaped tunnel is formed in the inner side of the tire between the bead shoulders, and the material between the tunnel and the converging outer surfaces forms narrow, inwardly inclined side walls that are compressed when pressure is applied radially inwardly against the tread. The inclination of the side walls results in a substantial amplification of the deflection of the tire under impact loads, as compared to the deflection of similar-thickness side walls that are not inclined, but instead, are parallel to one another.

Abstract: A puncture resistant pneumatic tire including a casing and an inner tube where the side walls of the casing flex under load a known amount, the method of designing a puncture shield which does not fail from reversion when driven at high speeds. The shield is made in a mould from liquid natural rubber a foaming agent and other compounds. The outer surface of the ring is contoured to mate with the lower inside of the tire casing and the upper or inner surface of the ring is designed to protect the tube from bulging in use and to be able itself to withstand flexing at the flex zone of the casing, by forming the inner surface with a convex shape at its outer sides and by flattening and upwardly bulging the inner surface of the shield where it overlies the tread portion of the tire to create tapered wings at its sides as seen in cross section and a massive puncture resistant portion over the tire treads.

Abstract: A wheeled toy with at least one wheel having a hollow thin-walled pliant toroidal tube formed from a piece of thin flexible material such as fabric and containing a relatively rigid sleeve disposed within the tube interior in surrounding relation to the inner annular wall portion of the toroid and soft spongy stuffing material, such as cotton. The wheel is rotatably mounted on the toy body by means of an axle extending through the central openings in the toroid and sleeve. A method of fabricating the wheel.

Abstract: A solid, monolithic bicycle tire made of urethane rubber with a cured hardness of from 50 to 95 Durometer A. The tire is formed with a pair of laterally spaced bead shoulders that seat on the bead seats of the wheel rim, and has a circumferential, arch-shaped tunnel formed in the inner side of the tire between the bead shoulders. The tunnel co-operates with the channel in the bottom of the wheel rim to form an annular void, or air space, that allows the tire to collapse locally under excessive impact loads, and at the same time provides a space into which the solid urethane elastomer can be displaced under compression. Under normal riding conditions, most of the light shock loads experienced when riding on a relatively smooth road surface are absorbed by the resiliency of the urethane rubber, with only a minor amount of deflection of the arched tunnel. A severe impact causes the tunnel to collapse to a greater extent, thereby absorbing the shock load and preventing damage to the wheel rim.

Abstract: A tire has its tire cavity filled with inexpensive lubricated light cellular particles and thereby avoids deformation and flattening of the tire upon loss of inflation pressure while maintaining vehicular control.