Abstract: A quick release fastener having a pin and a retainer, with the pin having a shaft of a diameter A with a head at one end of the shaft, and having a T-shaped tip at the other end of the shaft, the T-shaped tip having a stem in line with the shaft and opposed transverse arms, with the stem of the tip of a diameter B less than the diameter A, and with the distance across the transverse arms greater than the diameter B, and with the stem of a length C, the retainer having a body with an opening for the tip of the pin, the body having an inner end for passing the tip of the pin and an outer end with transverse notches for receiving the arms of the tip, the body having a ramp adjacent each of the notches, with the length D of the body between the inner end and the ramp not greater than the length C.

Abstract: 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 synthetic plastic material is molded to the core surrounding each of the anchors and filling the material receiving volume.

Abstract: A method of constructing an in-line skate wheel provides a hub assembly that is entirely reusable after a perimeter tire section is worn and disposed of. This wheel assembly creates an entrapment of component forms within this tire section that is locked together when hub halves are fasteners together as a hub assembly. These individual wheel components require the minimum of materials necessary to perform their tasks thereby reducing wheel weight. The preferred embodiment of these leaner components further promotes the efficient consumption of the tire profile during skating which reduces the cost of servicing worn wheels through the replacement of only these leaner tire sections.

Abstract: A detachable frame device includes: a rack device having a plurality of wheels linearly detachably mounted on the rack device, each wheel rotatably secured on the rack device by an axle device detachably secured on the rack device, a chassis secured to a boot or shoe of roller skate and pivotally secured to the rack device, and a locking device for locking the chassis with the rack device when each axle device is clamped in between the chassis and the rack device, whereby upon unlocking of the locking device to separate the chassis from the rack device, any one wheel can be removed from the rack device and replaced with a new one for conveniently dismantling the frame device and changing the wheels rotatably secured on the frame device.

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: 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 durometric hardness, the outermost of the layers including an outer surface adapted for a rolling motion of the wheel over a surface.

Abstract: A wheel for inline roller skates to allow oblique and lateral rolling movement includes an annular hub for mounting to axles associated with the roller skate with the hub having a circumferential groove formed thereabout with the groove being defined by curved wall members extending radially away from the central hub body and curving inwardly toward one another with a plurality of spherical roller elements fitted within the groove and extending circumferentially about the central hub body for free rolling movement within the groove with the roller elements being retained in place by the walls and being free to roll in any direction, thereby allowing a roller skater to experience oblique and lateral motion.

Abstract: A new Roller Blade Wheel Lighting System for increasing the visibility of the user when roller blading in darkness, without requiring an external power source. The inventive device includes a transparent cylindrical plastic rim rotatably secured to a conventional blade support member of a roller blade, an illuminating means positioned within the transparent cylindrical plastic rim, and a hard rubber rim secured around the transparent cylindrical plastic rim juxtaposed to the blading surface.

Abstract: A bouncing roller skate selectively performing a bouncing motion by selective eccentric rotation of the rear wheels and providing a roller skater with thrills and satisfaction. The roller skate has front and rear brackets mounted to front and rear bottoms of an elongated shoe plate, front and rear axles rotatably supported by the front and rear brackets respectively, a pair of eccentric arm members fixed to opposite ends of the rear axle, and the rear wheels fixed to the arm members such that the rear wheels are eccentrically or concentrically rotated relative to the rear bracket and selectively bounce the roller skate up and down while roller skating. The roller skate also has spring-biased speed reduction means for reducing the eccentrically rotating speed of the rear wheel and keeping the rotating force of the rear wheel uniform, thereby maximizing the skater's motion and allowing the skater to skate safely with the greatest thrill.

Abstract: An in-line skate wheel has a tire attached to a rim that mates to form a relatively rigid interlocking assembly with a wheel hub having concentric inner and outer hub rings interconnected nearly adjacent their outer edges by radially extending vanes. To enable rotation about an axis of rotation, a pair of bearings are co-axially retained by the wheel hub and mounted on a bearing sleeve located internal to the wheel hub.

Abstract: 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 skates. The difference is quite noticeable during turning. The problem of smooth turning on in-line skates is solved by a wheel assembly including a pair of end wheels with tapered peripheries, and a pair of intermediate wheels at least the rearmost of which defines a pivot wheel. The pivot wheel is less tapered than the end wheels, i.e. in cross section the outer periphery of the pivot wheel defines a semicircle. When the wheel assembly is used on a pair of skates, during turning, only the pivot wheel and possibly the other intermediate wheel contacts the ground. Thus, friction is reduced, and the result more closely resembles the feel of ice skates.

Abstract: A skate wheel (10) having a configuration of hubs (24), tire (14), spacers (26) and bearing assembly (22) which firmly locks the tire in place and yet allows the tire, bearing assembly and spacer to be replaced independently from the rest of the wheel when appropriate. In the preferred embodiment, each hub is formed with an annular recess to hold the spacer and bearing assembly. The tire is firmly locked into the present wheel by virtue of an annular tire flange (18) of rectangular transverse cross-section which is received into each hub and by acutely V-shaped projections (23) from each hub which are received into the tire. Small gaps are provided between hubs and spacers to prevent torsional overload of the bearing assembly. Peaks and valleys can be formed in mating hub and tire surfaces to prevent rotation of the tire relative to the hub.

Abstract: A set of high speed, light weight wheels are provided for in-line roller skates. The high performance wheels each have a single large, light weight bearing, a special hub with a light weight fiber-reinforced core, and a high strength tire.

Abstract: High speed, light weight wheels are provided for in-line roller skates. The high performance wheels each have at least one bearing, a special hub with a light weight fiber-reinforced core, and a high performance tire. The core can comprise symmetrical core sections and can have an array of spokes which connect a hub and an inner rim. Desirably, the light weight core can have a hollow shell upon which the tire is secured.

Abstract: An automatic power generating flash wheel assembly comprises at least a fly wheel and at least a coil unit. The fly wheel is enclosed by a transparent outer wheel. At least an inserted groove is formed in the inner periphery of the fly wheel to receive a set of the coil unit. Each of the coil unit has a couple of electrodes at one side and a light-emitting device at the opposite side. The electrodes are disposed toward a pivot. An annular magnet has a recess formed in the inner periphery of the magnet. A protrusion rib on the pivot is inserted through the recess. The magnet touches the electrodes slightly. The magnet is disposed between the first and second annular pivot sockets. The pivot passes through the first pivot socket, the magnet and the second pivot socket. The first pivot socket, the magnet and the second pivot socket are disposed in the fly wheel.

Abstract: A pre-pressurized in-line skate wheel including a hard polyurethane hub having a drop center formed between radially projecting guide flanges formed with axially projecting windows as spaced equidistant thereabout in an annular array. A bladder device includes a plurality of pressurized hollow cross rods nested at their opposite ends in such windows and surmounting on their radially outward sides a pressurized annular tube arranged concentric with the drop center. A soft polyurethane wheel body is formed in such drop center and projects radially outwardly to encapsulate the annular tube and form an elliptical annular tread surface. The method of manufacturing the tire includes blow molding the cross rods and the annular tube and pressurizing them to the desired individual pressures so that the resultant tire will exhibit the combined benefits of polyurethane cushioning and shock absorption associated with compressible gases.

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. The bladder in one embodiment is in communication with a valve for inflation and deflation thereof such that the overall tire resiliency may be adjusted, enabling adjustable performance characteristics of the wheel. One embodiment of the valve incorporates a resilient core within a rigid barrel and stretchable to allow an inflation needle to stretch the core and drive a poppet off a seat at the interior end of the barrel.

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 releasable axle assembly for skate wheels is disclosed, the assembly including an axle, a nut threadable on one end of the axle, a pivotable retainer connected on the other end of the axle, and a stop/washer on the axle adjacent to the retainer. The retainer includes a camming lever movable between securing and relaxed positions against the stop/washer. The lever is manipulated by an actuator/cap that is pivotably connected to the lever.

Abstract: An inline skateboard comprised of a board body, a pair of downwardly depending mounting rails integrally formed and smoothly merging from the bottom surface of the board body along a medial position thereof, a plurality of mounting shafts extending transversely across and through the mounting rails and ground engaging, interchangeable transit arrangements mounted on the mounting shafts in at least one of an inboard position between the mounting rails and an outboard position disposed to the outside of the mounting rails. An optional ball wheel is positioned at one end of the board body to define a pivot point about which a rider may attain improved stability, balance and turnability.

Abstract: The device for inserting and removing rollers in single-row roller skates, in which the axles are inserted through aligned openings in a frame and are mounted therein, includes an axle having at one end a circumferential groove or engagement recess. Into the circumferential groove or engagement recess extends a removable locking member in the form of a pin or a hook, wherein the axle is secured in a given rotary position by adjusting a bolt lever (9). The rollers (15) of the roller skate are rotatably mounted on the said axle.

Abstract: 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 the floor or ground, while leaning the skate by a relatively large degree with respect to a line extending perpendicular to the floor or ground. Each wheel has a rigid inner core and a softer outer cover. The inner core includes an axle housing connected to a hollow, "generally" spherical, rigid shell by a plurality of radially extending spokes. The bracket coupling the wheels to the shoe portion includes arms coupled to the wheel axles. The shape of the bracket and bracket arms are designed for strength as well as to allow for a high degree of skate inclination (lean or angle) with respect to the ground or floor without contacting and scraping the ground or floor.

Abstract: A protective cover for a wheel of an in-line skate is characterized by a circular discoid element having an outer diameter corresponding with the outer diameter of a sidewall surface of the wheel and containing a central opening having a diameter corresponding with the diameter of the axle of the wheel. A layer of adhesive is applied to the surface of the element facing the wheel to connect the discoid element with the wheel sidewall surface. The element protects the wheel bearings from contaminants, thereby extending the life of the wheel bearings.

Abstract: A platform or cart with a multitude of generally spherical rollers arrayed across most of the bottom of the cart so as to provide low resistance passage over soft or sandy surfaces. The rollers revolve about axles that are carried in flanges on the underside of the platform.

Abstract: A roller skate wheel which includes a transparent wheel mounted around a ball bearing to hold a set of lamps, a set of battery cells, and an integrated circuit board, a transparent tire mounted around the wheel, and an annular cover covered on the wheel to hold down the battery cells and the integrated circuit board, wherein the tire has a corrugated portion to refract light from the lamp; the annular cover has a slot and an insulative partition plate detachably inserted into the slot to disconnect circuit of the the battery cells before the use.

Abstract: The improved light generating and emitting roller skate wheel assembly of the present invention includes a wheel axle assembly carried by and beneath the roller skate blade. Such wheel axle assembly includes wheel bearings which are disposed thereon. A wheel hub is mounted on the wheel axle assembly and supported by the wheel bearings for rotational movement relative thereto. A tire, preferably made of a clear polymer is disposed about the wheel hub assembly. The roller skate wheel carries a light emitting mechanism, such as a light emitting diode, for emitting visible light preferably through the clear, polyurethane elastomer tires, as used in certain preferred embodiments. The roller skate wheel carries an electrical light generator which is electrically connected to the light emitting diode or other light emitting mechanism for providing electric energy and for generating light therefrom. The details of these structures are described in greater detail hereinbelow.

Abstract: 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 tire receiving shoulder. A tapered tire deflection controlling rim extends circumferentially about the shoulder, with rim side walls extending radially outward from a wide base at the tire receiving shoulder to a narrow peripheral surface. An annular resilient tire is mounted to the hub, engaging the tire receiving shoulder and encasing the tapered tire deflection controlling rim. The tire includes an annular ground engaging surface section and an annular high friction shoulder situated radially inward and axially outward of the ground engaging outer surface. The rim and tire configuration aid in maximizing speed and control in turns.

Abstract: A wheel construction generally consisting of a hub section formed of a thermoplastic polyurethane material having a first durometer hardness and a rim section formed of a thermoplastic polyurethane material having a second durometer hardness less than the first durometer hardness, molded onto the hub section to form a molecularly adhered, integral hub and rim structure.

Abstract: An improvement to an in-line skate wheel assembly rotatably mounted to a mounting frame axle juxtaposed a skate boot which lends to firmer and less degrading tire support and facilitates ready adaptation of different kinds of tires to suit varying skating activities.

Abstract: The invention discloses a wheel for roller skates, comprising: a tubular central body (1, 15) suited to lodge in its interior one or two bearings (2, 3) inserted in the supporting pivot (4) of said wheel and a toroidal covering layer (5) wrapped around said central body and co-axial with it, made of material suited to allow the rolling of said wheel on the contact surface. Said wheel presents at least one annular element made of shock-absorbing material, said annular element being placed between said central body (1, 15) and said toroidal covering layer (5), such as to permit the out-of-alignment between the central body and the toroidal covering layer, whenever said wheel bumps into the irregularities of the rolling surface.

Abstract: A wheel tread locking circular groove invention designed primarily to bond very difficult to bond materials to a given wheel hub or wheel rim without an adhesive which could be used for commercial, industrial, automotive, and all other purposes where a revolutionary state-of-the-art wheel product is needed. The resultant benefits of the locking circular grooves are derived from specific mathematical ratios. These mathematical ratios are a product of groove design dimensions. Another part of the invention is to bring together the wheel tread locking invention with a newly developed state-of-the-art engineering thermoplastic polyurethane resin designated as Isoplast.RTM. grade 202 with specifications far superior to that of any conventional material that can be used for wheel tread material forming a new product that has been needed for a very long time. This resultant combination of the present invention with the Isoplast.RTM. grade 202 will benefit everyone in the country, as all goods, food products, etc.

Abstract: A light-generating wheel for an in-line skate includes two side shells and an electric board sandwiched between the two side shells. The electric board has a plurality of light emitters protruding out of one of said two side shells to light on and off, i.e. to flash while the wheel is rotated in skating on the ground.

Abstract: In-line roller skates capable of riding at high speed on a skating surface and of being braked by the skater without the need for braking pads or similar expedients for this purpose. Each skate is provided with a set of composite wheels supported for rotation in tandem on a frame secured to the underside of a boot. Each composite wheel includes a central section, a substantial portion of which is formed of a synthetic plastic material exhibiting a low coefficient of sliding friction having a slippery outer surface, the central section being flanked by side sections formed of a synthetic plastic material exhibiting a higher coefficient of sliding friction providing a slip-resistant outer surface.

Abstract: 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 slots whose transverse extents are at least as great as the spacing distance between the underlying side walls. Improved parallelism of the axles is obtained by providing diametrically opposed lobes in a mounting hole in one of the side walls at each wheel mount and by providing the corresponding axle head with a complementary shape fitting to that portion of the mounting hole containing the lobes. A tool for installing and removing the wheels from the frame is also disclosed.

Abstract: A skate wheel having a replaceable tread mechanically attachable to and mechanically detachable from a wheel hub. The wheel hub includes a central hub and a tread receiving ring around the hub outer radial periphery. A thread projecting from the tread receiving ring spirals around the outer radial periphery of the tread receiving ring. The replaceable tread includes a tread attaching ring and a ground engaging tread disposed around the circumference of the tread attaching ring. A mating thread projecting from the inner radial periphery of the tread attaching ring spirals around the inner radial periphery of the tread attaching ring. The replaceable tread and wheel hub are connected by the threaded engagement of the threads of the tread receiving ring and tread attaching ring. The present invention also includes a process for forming a high strength, low weight composite hub for the skate wheel.

Abstract: A skate wheel includes a reusable hub and a replaceable tire. The hub consists of (i) a rim with an integral clamp ring, (ii) an attachable clamp ring that attaches to the rim after a tire is mounted on the rim and (iii) a threaded ring which fastens onto the rim and secures the attachable clamp ring to the rim. Each of the clamp rings includes an inwardly pointing arm. These arms extend into annular grooves on the sides of the tire, to grip the tire and hold it in place on the rim. In a preferred embodiment the outer ring screws onto the rim and in position against the clamp ring, to retain the claim ring on the rim. To replace a worn tire, a user unscrews the outer ring, removes the attachable clamp ring and then removes the old tire from the rim. He then slides a new tire onto the rim, holds the tire in place with the attachable clamp ring and secures that ring in place with the outer ring.

Abstract: A device for mounting wheels and for compensating plays, particularly usable in skates including a shoe associated with a supporting frame for one or more possibly mutually aligned wheels composed of a central hub with which an annular element, acting as tire, is associated. The device is constituted by a pivot which is associatable with the hub and the frame and has, at its ends, an engagement-disengagement lever and a play compensation member.

Abstract: 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 axis of the wheel. The width of the grooves and/or the distance between the grooves may vary dependent upon design criteria such as diameter, width and weight load for the specific application of the wheel. The shaping of the contact surface of the wheel and the sharpening of its edges shall be done in such a manner as to reduce the physical contact with the ice so that the pressure of the wheels forms a deep enough groove or set of grooves in the ice that enable the development of sufficient lateral friction. The outer exterior circumference of the wheel shall be made of a material that is sufficiently harder than the ice so as to maintain the shape of the contact surface and the degree of sharpness of the edges.

Abstract: In-line roller skates whose wheels make it possible for a skater to stop without the need for a braking pad or other special expedients for this purpose. Each skate includes a boot to accommodate the skater's foot and a frame secured to the underside of the boot supporting a series of in-line wheels having a composite structure. Each composite wheel includes a center section formed of hard material, such as high-density polyethylene, having a low coefficient of friction, the center section being flanked by side sections formed of relatively soft material, such as cast polyurethane, having a high coefficient of friction. In order to stop or reduce speed, the skater turns the in-line skates away from the direction of travel as he would when braking ice skates. This maneuver causes a portion both of the hard and a soft section of the composite wheels, now angled with respect to the direction of travel, to frictionally engage the ground to effect a braking action.

Abstract: A skate including a chassis formed by an upper horizontal plate solidly joined to the sole of a shoe by fasteners and a lower part running perpendicular to the plate and including at least one lateral flange on which the wheels are disposed by transverse axles solidly joined to the chassis, constituting a rolling train, each of the wheels having a hub in fixed rotation, which is disposed on the axle and which supports a bearing interpolated between the hub and a tire. The hub of the wheel is equipped with an arrangement which allows for its angular deflection relative to its median horizontal plane. The arrangement for angular deflection includes the transverse axle which is horizontally off-center in relation to the virtual center of the wheel which can cooperate by abutment with a fixed axle solidly joined to the chassis which passes through it, and which supports an elastic recoil device.

Abstract: A pair of roller skis 300 each constituted by attaching elastic wheels 302 to a boot-placing plate 301 in the front thereof and at the back thereof. The elastic wheels 302 each comprises a wheel supporting means having a circular rim part on the outer periphery and a tire part mounted on the circular rim part of the wheel supporting means and being elastically deformable in the direction perpendicular to the running direction of the wheel. Each elastic wheel 302 enables the running direction thereof to be simply changed with the wheel shaft kept in the same direction, and utilization of the features permits a skier to operate the roller skis with a feeling similar to that afforded by conventional snow skis.

Abstract: A supporting frame, particularly for aligned wheels of skates, which is shaped like a "U" on the wings of which there is a plurality of first and second holes having the same axis. These holes constitute seats for removable pivots for the wheels and are respectively partially closed and temporarily closeable at their opposite ends. A sliding bar, slideable in a groove, is used for blocking, at least temporarily, the pivots. The wheels are associable with the supporting frame without requiring screws and thus containing the assembly and general costs of the skate.

Abstract: 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 members (5). The bridge members (5) have a contour which provides for an upper recess (6) and an internal opening or groove (3) formed below the bridge element (5). A plastic tire (4) is molded into the recess (6) and the groove (3) for securing the plastic tire (4) to the outer arcuate shell (1).

Abstract: A wheel of a roller skate includes a plurality of circumferentially spaced apart generally axially extending curvilinear paths. A speed skater, traveling a predominately circular course with such wheels properly aligned on such skates, is able to use air moving past the skater to increase skating speed. As air enters the curvilinear paths of the wheel the direction of air flow changes. In this manner, momentum is transferred from the moving air to the spinning wheels, thus increasing the number of revolutions of the wheel and the speed of the skater.

Abstract: A method of producing injection molded in-line skate wheels is disclosed. The method includes heating an injection molding unit suitable for injecting molten polyurethane, placing a thermoplastic polyether type polyurethane into the unit and heating the polyurethane until it is molten or at about 380.degree. to about 460.degree. F. A polyurethane hub is placed in a mold whereby the mold and hub are of shapes and sizes suitable for producing in-line skate wheels. The hub-containing mold is heated to about 50.degree. to about 100.degree. F. in order to prevent the molten polyurethane from prematurely hardening. Once the mold is heated, about 46 to about 50 g of polyurethane is injected into the mold at about 75 to about 100 psi. The polyurethane is cooled to about 120.degree. to about 130.degree. F. to allow the polyurethane to harden and the resulting wheel is removed from the mold.

Abstract: 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 first edge and a second edge wherein the first arcuate perimeter surface is radially disposed concentric to the axial bore. At least one first convex transitional arcuate surface having greater radii than the first arcuate perimeter surface and tangentially connecting to the perimeter surface at the first edge and radially disposed to the axial bore. At least one second convex transitional arcuate surface having greater radii than the first arcuate perimeter surface tangentially connecting to the perimeter surface at the second edge and radially symmetrically disposed relative to the axial bore.

Abstract: A wheel adapted for use on a roller skate or the like includes a wheel member made of elastomer having shock-absorbing property, and a pair of disk members embedded into a central hole of the wheel member, and combinable with each other for firmly clamping two central rim portions on two opposite sides of the wheel member, so that the wheel member secured with the two disk members will be stably rotatably mounted on an axle provided on a mounting frame of a roller skate, a skate board or any other wheeled sporting equipments for enhancing a better stability, heat resistance, shock-absorbing property and ground-treading property of the wheel.

Abstract: A roller skate wheel having a conical cavity includes an insert housing arranged for complementary reception within the cavity. The housing includes a housing base plate, with the base plate including a socket to receive the wheel fastening axle structure therewithin. A transparent forward plate is mounted in a spaced, parallel relationship relative to the base plate. A plurality of illumination bulbs diametrically aligned within the housing adjacent the forward plate are in electrical communication with a battery housing mounted medially of the housing, and wherein the battery and battery housing include first electrical contact support legs resiliently mounted, with the first electrical contacts mounted to distal ends of the legs for engagement with further electrical contact legs directed into the illumination bulbs, whereupon centrifugal force in use of the roller skate wheel completes electrical circuitry to effect illumination of the bulbs within the housing.

Abstract: A skateboard, adapted for use on ice, utilizes a blade assembly comprised of a bushing member, a blade member and a body member. The bushing member has an outer surface and an inner surface, the inner surface defining an aperture adapted to receive the skateboard axle. The blade member has finished edges and substantially parallel faces. The body member is made of fiberglass or high strength plastic compounds and is formed such that it holes the blade member and the bushing member in a fixed relationship to one another. The body member encases a portion of the outer surface of the bushing member, allowing the bushing member to receive the axle without substantial interference. The body member also encases a portion of the substantially parallel lateral faces of the blade member, leaving a portion of the blade member exposed for contact with the ice.

Abstract: 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. The rollers conform to a second circle on the wheel axis for contact with a skating surface. Application of friction to the rollers controls the resistance to lateral rolling, thus providing a braking action to the skater.