Abstract: A summer style ski having three different types of wheels aligned to allow the ski to travel on non-snow or ice surfaces and to create the feel of carving or turning on a paved surface.

Abstract: A medical leg support arrangement includes a main housing having a platform that a foot of a user would rest and be fastened there upon. Rotatable ground engaging strips are provided on opposing sides of the platform, wherein each rotatable ground engaging strip includes curved and/or arched up distal ends such that when in use weight bearing support of the arrangement is maintained upon initial contact and departure of the arrangement from the ground so as to allow continuous support to the leg of the user during back and forth circumferential motion instigated by the user when ground engaging the arrangement.

Abstract: The described roller skate is essentially composed of a boot, to the sole of which the plate of a roller carrier element is detachably connected with screws penetrating the through holes. The screw holes are located on both sides of the vertical symmetry axis on the center longitudinal line. Bearing blocks and are connected to the underside of the plate via a web extending in the longitudinal direction. The floating axles of the inline rollers and of the outer rollers are inserted in bores through or through. The bearing blocks and with their different bores through or through are likewise embodied and arranged in a mirror symmetrical manner with respect to the vertical center line. The explained symmetry of the roller carrier element makes it possible for it to be used for the left and right roller skate.

Abstract: A wearable device configured to selectively provide roller transportation, the wearable device including a shoe, a plurality of wheel assemblies, each wheel assembly being configured to selectively roll relative to a ground surface about an associated axis of rotation, and a frame connected between the wheel assemblies, the frame comprising a trunk and a plurality of branches extending from the trunk, each of the branches being configured for connection to at least one of the plurality of wheel assemblies, wherein at least a portion of the shoe is located vertically higher than at least a portion of the frame when at least one of the wheel assemblies is in contact with the ground surface and the at least one of the wheel assemblies is positioned to selectively roll relative to the ground surface.

Abstract: An exemplary embodiment of the present invention includes a first coupler device configured to couple to the frame of an in-line skate. The first coupler device includes a linear portion and an angled portion where the linear portion and the angled portion have different lengths. The linear portion includes a first hole configured to couple to the frame of the in-line skate and the first hole is located near the end of the linear portion that is opposite the angled portion. The linear portion includes a second hole located at an area where the linear portion meets the angled portion. The angled portion has an angle greater than zero and includes a third hole near the end of the angled portion that is opposite the linear portion.

Abstract: [Problem to be Solved] To provide a roller skate in which the inclination of a shoe can be firmly stabilized and the user can easily apply force to the ankle. [Solution] A pair of roller skates 1 provided with wheels 3 and a sole 10 rotatably holding the wheels 3. In each of a pair of the roller skates 1, the wheels 3 are provided with one front wheel 3a and one rear wheel 3b. The front wheel 3a is provided on the inside of a shoe body 2 provided over the sole 10, and the rear wheel 3b is provided on the outside of the shoe body 2.

Abstract: The present invention relates to a roller ski or board, said ski or board providing in-line central rollers, centrally provided on the ski or board body, and two pairs of additional rollers, respectively a front pair and a rear pair, said pair of rollers being raised with respect to the ground on which ski or board rests when the same ski or board is substantially parallel with respect to the ground, and contacting the same ground when ski or board is inclined, each one of the additional rollers is coupled with the ski or board by a support system comprising a fork, having one end coupled with the roller and the other one faced toward the ski or board, between the end of the fork faced toward the ski or board and the same ski or board being provided with a resilient element.

Abstract: A specially formed cylindrical disc, set in a fixed position, to be utilized on the PIC® inline skate to allow for jumps and spins in the sport of inline figure skating. The performance pick disc is made of molded rubber or synthetic material. The purpose of the performance pick is to provide enhanced spins, jumps, and footwork common in the sport of inline figure skating. The continuous curved shape of the performance pick discs outer edges provides a toe-in angle of between 0 and 22 degrees, the optimal angle being between 5 and 12 degrees for jumps and 0 to 5 degrees for spins. In a variation, the outer edges are slanted at an angle between 20 and 45 degrees on both sides continuously around the cylindrically formed disc to provide an optimal surface for push offs common in inline figure skating maneuvers.

Abstract: Skate, either an in-line roller skate or an ice skate, comprising a frame carrying on or more sliding elements, and a skate boot provided with a sole, said boot being fastened to said frame through a fastening portion, wherein said fastening portion is located between said sole and said frame in a substantially central region in the longitudinal direction of said frame.

Abstract: A specially formed cylindrical disc to be utilized on the Pic® inline figure skate, U.S. Pat. No. 5,738,360, to allow for jumps and spins in the sport of inline figure skating. The performance pick disc is made of molded rubber or synthetic material. The purpose of the performance pick is to provide enhanced spins, jumps, and footwork common in the sport of inline figure skating. The continuous curved shape of the performance pick discs outer edges provides a toe-in angle of between 0 and 22 degrees, the optimal angle being between 5 and 12 degrees for jumps and 0 to 5 degrees for spins. In a variation, the outer edges are slanted at an angle between 20 and 45 degrees on both sides continuously around the cylindrically formed disc to provide an optimal surface for push offs common in inline figure skating maneuvers.

Abstract: The roller skate according to the invention is equipped with smaller inline rollers (40) arranged below the boot (10) and with outer, larger rollers (30), the upper parts of which protrude above the boot sole (11). This roller skate can be moved on four rollers (30) and (40) in the manner of a four-wheel roller skate, or, in certain phases, just on two inline rollers (40) in a similar manner to an inline skate.

Abstract: An in-line skate which includes a plurality of wheels mounted to a frame each having a primary contact surface which contacts a skating surface to support the skater when the skate is in a generally upright position, and at least one secondary rotatable contact surface disposed at a level above the primary contact surfaces when the skate is in a generally upright position and positioned to contact the skating surface only when the in-line skate is inclined beyond a selected angle from the vertical. The length of the wheelbase formed by the secondary contact surface is shorter than the length of the wheelbase formed by the primary contact surfaces. By effectively changing the length of the wheelbase of the in-line skate when the in-line skate is at a certain angle from the vertical, a tighter turning radius may be achieved.

Abstract: The present invention discloses a roller assembly of an in-line roller skate, the roller assembly comprising a roller frame and a plurality of roller wheels, of at least two different sizes, which are fastened pivotally with the roller frame, such that the roller assembly may rock forwards and backwards upon a surface.

Abstract: A wheel with an asymmetrical cross-section for use with a roller skate. The wheel also has a tread portion that can be easily and inexpensively replaced. An apparatus for multi-line roller skates that has two or three lines of wheels. The wheels in the center line have a coefficient of friction that is lower than the coefficients of friction of either of the outer lines of wheels. The wheels in the outer lines have asymmetrical cross-sections, while the wheels in the center line have symmetrical cross-sections. A multi-line roller skate that employs these technologies is disclosed. Also disclosed is a method for improving roller skate performance employing the aforementioned technologies.

Abstract: The present invention discloses a roller assembly of an in-line roller skate, the roller assembly comprising a roller frame and a plurality of roller wheels, of at least two different sizes, which are fastened pivotally with the roller frame, such that the roller assembly may rock forwards and backwards upon a surface.

Abstract: A chassis for a gliding sport element, such as a skate, and, more particularly, such as an in-line roller skate, which includes such chassis. The chassis includes at least one support surface capable of receiving a boot and at least one lateral flange having at least one stiffening rib formed on at least one of the flanges. The gliding member(s), such as wheels, are mounted to the lateral flange(s).

Abstract: A skateboard for use on a hard surface, configured to simulate the response of a snowboard, has a support platform to which sets of wheels are mounted. The wheels have successively decreasing diameters mounted on a common axle. The wheels of successively decreasing diameter may additionally or alternately be formed of materials of successively greater frictional and compressibility characteristics.

Abstract: A wheel with an asymmetrical cross-section for use with a roller skate. The wheel also has a tread portion that can be easily and inexpensively replaced. An apparatus for multi-line roller skates that has two or three lines of wheels. The wheels in the center line have a coefficient of friction that is lower than the coefficients of friction of either of the outer lines of wheels. The wheels in the outer lines have asymmetrical cross-sections, while the wheels in the center line have symmetrical cross-sections. A multi-line roller skate that employs these technologies is disclosed. Also disclosed is a method for improving roller skate performance employing the aforementioned technologies.

Abstract: A steerable self-propelled all terrain vehicle with one large steerable wheel centered on the longitudinal axis and mounted on the front 75% of the riding board, and two or more steerable wheel that are mounted behind the large front wheel. The large steerable wheel coupled with the two or more rear steerable wheels provide improved speed and maneuverability over a wide variety of surfaces, terrain and speed ranges. The large protruding wheel's axle and related suspension provide greater controlled steerablity with improved stability while traveling over varied and rough surfaces. The steerability of the large protruding wheel and connected wheels is controlled by the movement of the operators feet, weight shift and riding board flex, also pivotal foot and ankle positioning, in other embodiments there are different ways to increase the degree of turn rate. 1 References cited 5,947,495 Dec. 1997 Null 280/87. 1,468,173 Oct. 1923 Shaw 280/87. 3,854,743 Dec.

Abstract: A chassis for a gliding sport element, such as a skate, and, more particularly, such as an in-line roller skate, which includes such chassis. The chassis includes at least one support surface capable of receiving a boot and at least one lateral flange having at least one stiffening rib formed on at least one of the flanges. The gliding member(s), such as wheels, are mounted to the lateral flange(s).

Abstract: A wheeled skate device has a pair of large primary wheels coupled to opposite lateral sides of a platform. The primary wheels rotate about primary axes of rotation in both forward and rearward direction. The skate device may have a secondary wheel coupled to one end of the platform which rotates about a secondary axis of rotation. The secondary wheel also pivots about a vertical pivot axis through at least 180 degrees such that the secondary wheel turns with the platform without sliding on the support surface. The wheels cooperatively operate in a travel mode and spinning mode. In the travel mode, all the wheels rotate in the same direction to horizontally displace the platform. In the spinning mode, the primary wheels rotate opposite directions to one another, and the secondary axis of rotation is traverse to the primary axes of rotation. The platform also may pivot about the primary axes of rotation between a horizontal orientation and an inclined orientation.

Abstract: A skate including a boot having a toe portion and a heel portion and wherein a first skate frame is attached to the heel portion and a second skate frame is attached to the toe portion wherein the frames move independently of each other from flexural movement of the boot.

Abstract: A skate assembly that allows a skater forward/backward motion as well as side-to-side motion is provided. Various aspects of the skate assembly can be adjusted to fit the size and weight of the skater, the skill level of the skater, the skating or playing style of the skater, and the various surfaces to which it might come into contact. In one configuration the skate assembly is comprised of a plurality of linearly aligned roller assemblies. The skate assembly includes at least one friction plate mounted on the inside edge of the skate frame that provides a push-off area used by the skater to initiate motion, accelerate, or stop. In another configuration the skate assembly is comprised of at least one roller assembly interposed between a pair of conventional wheels. The pair of conventional wheels provides stability when the skater is moving in either a forward or backward direction since these two wheels are confined to rotation in a single plane.

Abstract: A chassis for a gliding sport element, such as a skate, and, more particularly, such as an in-line roller skate, which includes such chassis. The chassis includes at least one support surface capable of receiving a boot and at least one lateral flange having at least one stiffening rib formed on at least one of the flanges. The gliding member(s), such as wheels, are mounted to the lateral flange(s).

Abstract: A roller skate includes a chassis having a first frame and a second frame extending longitudinally parallel to each other, first through fourth wheels rotatably mounted in spaced apart manner between the first and second frames, and first through fourth slots provided in spaced apart manner in each frame. The first slot is positioned adjacent a front end of the frame and the fourth slot is positioned adjacent a rear end of the frame. The first through fourth wheels are mounted adjacent the first through fourth slots, respectively, of both frames. The center of the fourth slot is positioned at a vertical level higher than the center of the first slot.

Abstract: Skates with in-line wheels, each comprising a supporting structure to which supports are connected for a plurality of wheels, wherein at least one of the central wheels is coupled to the supporting structure so that it can change the level of its rotation axis.

Abstract: A sled which will allow the user to experience the joy of sledding when there is no snow on the ground. The sled has wheel racks which are attached to the bottom of the base of the sled, and a plurality of oval wheels are attached to the wheel rack, and the wheels extend from adjacent the front of the sled to adjacent the rear of the sled. The foremost wheels on the wheel rack are smaller that the remaining wheels to allow the sled to be used on grassy surfaces which do not have snow thereon. The smaller wheels will make it easier for the sled to roll on non-linear hills.