Abstract: A system for ultrasonic bonding of elastic includes a rotating roll. The rotating roll has an exterior surface. A removable shell layer is attached to the external surface. The removable shell layer includes one or more patterned segments. The patterned segments include a shell channels formed through the removable shell layer to form a pattern.

Abstract: A modular roller device to facilitate horizontal displacement of objects and materials, including large, heavy, or bulky objects and materials comprising a frame constructed of at least one formed rod, a first rolling member rotatably mounted to a first support arm, and a second rolling member rotatably mounted to a second support arm, wherein the first rolling member may be arranged in a generally parallel orientation relative to the second rolling member. The frame may comprise at least one extending section, and the opposing first and second support arms may be coupled thereto. The at least one extending section may comprise a longitudinally extending section and/or a diagonally extending section. The modular roller device may further comprise at least one secondary extending section. The modularly roller devices can be further combined to a form a system to facilitate the horizontal displacement of objects and materials.

Abstract: A Scooter comprising a base board and a pair of rear casters. A flexible band couples and coordinates the rotation of each of the rear caster wheels. The Scooter has a forward hand grip subassembly which comprises a mounting foot, a rearwardly directed leg, a tubular neck, a steering shaft having at least one wheel, and a directional control member having a pair of associated hand grips coupled removably coupled thereto.

Abstract: A kick scooter includes a deck including a through hole in a hole, a flexible protruding member formed on the through hole, and a head tube having a through aperture; a steering tube including an aperture; a lock assembly including a projection having two parallel grooves, and a push button; a spring biased detent for fastening the steering tube and the deck together; and a steering control including a connecting member having a cavity; two pivotal members each having an end secured to a front wheel, and a bearing in a through hole; two cylinders each in either end of the connecting member and another through hole; and a biasing member biased between the cylinders. The steering control is unlocked with the protruding member in one groove and the pivotal members configured to pivot about the bearings. A pressing of the push button locks the connecting member.

Abstract: A wheel for an inline skate that may reduce rolling friction and provide a wider rolling base giving more stability. The wheel comprises a hub for receiving an axle and a wheel body defining a circumference of the wheel. The wheel body comprises a circumferential surface extending along the circumference of the wheel. The circumferential surface comprises a first contact surface and a second contact surface for being in rolling contact with a skating surface on which the inline skate moves. The wheel body also comprises a receding surface extending from the first contact surface to the second contact surface and forming a recess between the first contact surface and the second contact surface.

Abstract: A personal transport device including a transportation attachment, a foot platform situated above the transportation attachment and at least one fastener connecting the foot platform to the transportation attachment. The foot platform has two parallel extending surfaces supporting a user's foot so that the longitudinal axis of the user's foot can be positioned roughly perpendicular to the direction of travel of the transportation attachment The transportation attachment can be wheels, skates or even skis.

Abstract: A personal vehicle for carrying a passenger, the vehicle comprising: a center frame; two wheel assemblies, wherein at least one wheel assembly is hubless; a foot support in a center portion of at least one wheel assembly; and at least one pivot means between at least one wheel assembly and the center frame.

Abstract: A roller skate has a body, a brake and a sole adjusting device. The body has a front bracket, a rear bracket and a holding frame. The brake is connected to the body and has an operating device and a braking device. The operating device is connected pivotally to the body and has a mounting frame, a connecting frame and a pressing arm. The braking device is connected to the rear brake below the pressing arm and has a clamping frame and an abutting frame. The clamping frame is connected to the body. The abutting frame is connected to the rear bracket above the clamping frame. The sole adjusting frame is connected to the body and has a baseplate, a front adjusting panel and two rear adjusting panels. The baseplate is mounted on body. The adjusting panels are mounted movably on the baseplate.

Abstract: A personal transport device including a transportation attachment, a foot platform situated above the transportation attachment and at least one fastener connecting the foot platform to the transportation attachment. The foot platform has two parallel extending surfaces supporting a user's foot so that the longitudinal axis of the user's foot can be positioned roughly perpendicular to the direction of travel of the transportation attachment The transportation attachment can be wheels, skates or even skis.

Abstract: One of a pair of skates includes a main body, a brake device, a binding device, and a size adjustment device. Thus, the pivot plate is pressed to pivot downward to move the brake pad downward to press the rear wheel, thereby providing a braking effect so as to stop movement of the rear wheel. In addition, the pivot plate is pressed to pivot by inclining the user's body backward or pressing the user's one shoe backward, so that the brake device is operated easily and conveniently, thereby facilitating the user braking movement of the skates.

Abstract: The improvement of the pedestal of roller shoes, which is a technique in the field of sports shoes, provides the capability of shock absorption. The improvement of the pedestal includes the following features: the middle part of the joint shelf is mounted to the pedestal, a roller is mounted to the one end; the middle part of the spring steel plate is mounted to the appropriate place of the pedestal, the two ends of it mount to the other ends of the two joint shelves. This new design will absorb the shock imposed on the rollers via the damping of the spring steel plate, and prevent the shock from going to the feet of the user.

Abstract: A frame for a skate, and a skate having a frame, the frame including a lower longitudinally elongated member for supporting the wheels of the skate, a housing at opposite ends of the elongated member, each housing demarcated by a pair of lateral walls between which is assembled a respective wheel mounted on an axle. The elongated member further includes, or has attached thereto between the wheel housings, a lower arc demarcated by a surface facing a line defined by the contact points of the two wheels while supported on a planar surface. The arc extends over a length equal to or greater than a third of the distance between the two wheel axles at each of the ends of the elongated member of the frame.

Abstract: A wheel retractable mechanism for roller skate comprised of multiple wheels with each wheel pivoted to a dedicated bracket and then connected to a casing fixed at a sole of the boot by means of the bracket; the bracket being coupled to the casing by means of a slide track; and a retainer being used to secure both of the bracket and casing in their respectively locations; whereby, the bracket being fully pulled out from the casing by releasing the retainer from the bracket for the bracket to face with its base plate or for the wheels to face towards the sole of the boot before pushing the bracket into the casing to be held in position by the retainer so to secure the bracket in the casing to either conceal or expose the wheels depending on the status of use.

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 multi-wheel heeling apparatus is provided. The multi-wheel heeling apparatus has a sole with a first opening formed in a heel portion of the sole and a second opening in the sole formed adjacent the first opening. The multi-wheel heeling apparatus includes a first and a second wheel assemblies. The first wheel assembly includes a first wheel mounted on a first axle, and a first mounting structure operable to support the first axle so that a portion of the first wheel resides in the first opening. The second wheel assembly includes a second wheel mounted on a second axle, and a second mounting structure operable to support the second axle so that a portion of the second wheel resides in the second opening.

Abstract: A frame for a skate, and a skate having such frame, which includes a lower longitudinally elongated member for supporting the wheels of the skate, a housing at opposite ends of the elongated member, each housing demarcated by a pair of lateral walls between which is assembled a respective wheel mounted on an axle. The elongated member further includes, or has attached thereto between the wheel housings, a lower arc demarcated by an inwardly extending surface with respect to a line defined by the contact points of the two wheels on a planar surface. The arc extends over a length equal to or greater than a third of the distance between the two wheel axles at each of the ends of the elongated member of the frame.

Abstract: An in-line wheeled skate has a frame for attachment to the underside of a shoe which has a longitudinal axis in the direction of travel of the skate. Two wheels are rotatably mounted in line at opposite ends of the frame to leave an extended space between the wheels. An H-block mounted on the frame in the space between the two wheels has a downwardly facing surface having a central region which is arcuate to form a sliding surface for sliding maneuvers, and a pair of end portions extending from the central region towards the respective wheels, each end portion having a downwardly directed end stop projection.

Abstract: Improvements made to wheeled skate-skis with brakes usable on most terrains are: a hand controlled hydraulic fluid braking assembly, having a sole, resilient, curved spring, brake shoe, providing performance in comparison with the braking performance of a roadway motor vehicle; a chassis with a foot receiving body portion formed on a convex camber and made of materials which are flexible, under the weight of a person, thereby providing a spring like suspension, and with upwardly directed curved forked ends to position wheel axles higher above the ground to lower the foot receiving body portion, to thereby lower the center of gravity of the sportsperson, while moving on the wheeled skate-skis; a binding which is a combination of an outer shell of a firm material and an inner liner of soft material, which together are adjustable to fit different sizes and types of athletic shoes selected and worn by sportspersons; and a removable mud flap supportable on the binding to deflect water and/or debris thrown by a rea

Abstract: A receivable roller skate wheel mounting arrangement is constructed to include a sole having two bottom open chambers, and two wheel assemblies respectively mounted in the bottom open chambers, each wheel assembly including a mounting frame fixedly mounted in one bottom open chamber, a wheel holder, the wheel holder having a first pair of upright side lugs respectively pivoted to the mounting frame for enabling the wheel holder to be turned between the extended position and the received position and a second pair of upright side lugs holding a pair of wheels, a spring member provided between the mounting frame and the wheel holder and adapted for holding the wheel holder in the extended position, and lock means adapted for locking the wheel holder between the extended position where the wheels are disposed outside the sole for roller-skating and the received position where the wheels are received inside the corresponding bottom open chamber and the wheel holder close the corresponding bottom open chamber.

Abstract: A wheel assembly mainly comprises a pivotal seat, a locking device, a singular elastic member and a wheel. The pivotal seat includes a first end pivotally connected to a base by a mounting member for moving between an extended position and an stowed position and a second end rotatably connected to the wheel for skating. The locking device is combined with the singular elastic member as a unit, which is adapted to optionally lock the pivotal seat either in the extended position or in the extracted position by the bias force of the singular elastic member. The singular elastic member is further adapted to bias the pivotal seat for facilitating its movement between the extended position and the stowed position.

Abstract: A wheel seat assembly of a roller skate includes a sole body fixed on the bottom of a shoe. The sole body is provided with receiving chambers for securing casings therein. The casing defines an axial hole and at least two positioning holes. A roller seat is pivotally mounted in the casing by a pivot member. The pivot member is fitted with a catch member and an elastic member. The catch member may be selectively locked into one of the positioning holes of the casing by an urging action of the elastic member. The roller seat has a roller rotatably mounted therein by a rotation shaft.

Abstract: A shoe for walking and skating having a shoe, a locating plate, two locating members, two rollers and a brake. The shoe has a sole provided with front and rear holding grooves. The bottom of the locating plate includes front and rear locating frames respectively corresponding to the front and rear holding grooves. The locating members are respectively fixed in the front and the rear locating frames. Each of the locating members has a button on opposing sides for pushing a pivoting element to control the axial movement of a locating pin while a cap is used to fix the button, the pivoting element and the locating pin. In addition, a compression spring is interposed between the cap and the locating pin. Further, a mounting bar with an elongated groove moves up and down and is mounted on either side of the locating members. The rollers are mounted on the elongated grooves of the mounting bars.

Abstract: A two-wheeled roller skate with canted wheels has an axle for the forward wheel located well forward of the ball of the foot. The axle for the rear wheel is located at the rear of the skater's heel. The wheels are canted so that the front and rear wheels contact the ground on the opposite sides of the center line of the skater's foot. In plan projection, the axles are preferably non-parallel in order to provide steering correction. The amount of steering correction desirable will depend on the skater's skill and the nature of the skating activity. In alternative embodiments, the present invention incorporates novel braking mechanisms.

Abstract: A new inline skate wheel assembly for permitting conversion from walking shoe to in-line skates through a spring release mechanism. The inventive device includes a locking clip with arms that are inserted into the spring loaded locking mechanism upon which the wheel yoke and axle are attached. When the arms of the male component locking clip are disengaged from the female component notches in the spring loaded locking mechanism, the wheel assembly may either be manually retracted into the cavity located in the sole of the boot or extended by the touch of a button in an instantaneous snap action due to the spring loaded locking mechanism.

Abstract: A skate device, e.g., a skate or skate board, includes a foot support device, e.g., a boot or a board, and a truck assembly for supporting the foot support device. The truck assembly has a first wheel housing mounted in pivotal relation to the foot support device. A first wheel has a first axle mounted to the first wheel housing for rotation about a first wheel axis. A first spring housing is mounted in fixed relation to the foot support device. A centering spring is mounted within the first spring housing and engages the first wheel housing to pivotally urge the first wheel toward a predetermined first center position.

Abstract: A wheel assembly for a roller skate includes a pivotal seat having a first end secured to a base of the roller skate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat by a pin, and a wheel rotatably mounted to a second end of the wheel seat. A first elastic member has a first end attached to the pivotal seat and a second end attached to a mounting member on the wheel seat for biasing the wheel seat to a storage position in the base. A stopping member includes a first end mounted to the pin and a second end through which the mounting member is extended. A second elastic member is mounted around the pin for biasing a stop of the stopping member to a position for releasably engaging with the wheel seat to prevent the wheel seat from moving into the storage position in the base when the wheel seat and the wheel are extended beyond the base for skating.

Abstract: A dual-purpose roller skate includes a sole provided with front and rear open-bottomed cavities and two wheel units separately fixedly mounted in the two cavities. Each of the wheel units mainly includes a base fixedly mounted to a top of the cavity, a wheel support pivotally connected to the base and being normally pushed downward by a first torsion spring, a wheel rotatably connected to the wheel support, and a stop arm pivotally connected at an end to one side of the base and having a bent free end normally pushed by a second torsion spring into engagement with a slot provided on the base. The bent end of the stop arm projected into the slot is also adapted to detachably engage with either a top or a lateral notch provided on the wheel support.

Abstract: A roller skate which includes specially shaped front and back wheels which allow the skate to operate on flat ground and over pipes or rails. The skater is able to perform stunts and maneuvers involving pipes or rails of different diameters due to the front and back wheel geometry. The hourglass-shaped cross-section that is created by the configuration of the front and back wheels centers the pipe or rail that is being skated on under the center of balance of each skate. The two front and two back wheels each have a half hourglass shape, and are able to spin independently of each other.

Abstract: A roller skate has a sole plate having a front oblong hole, a rear oblong hole, and a middle block. The sole plate has a round aperture, a threaded hole, and a circular aperture. The middle block has a round hole and a through hole. The hollow bottom casing has a front slot, a rear slot, and a bore. The first wheel support seat has a first U-shaped frame, and a first insertion plate having a first circular hole. The second wheel support seat has a second U-shaped frame, and a second insertion plate having a second circular hole. The through hole, of the middle block receives the first insertion plate and the second insertion plate. The first shaft is inserted through the round aperture and the first circular hole. The second shaft is inserted through the circular aperture and the second circular hole. The positioning tube engages with the threaded hole. The blocking device is inserted through the round hole.

Abstract: A convertible shoe that can be used for walking or for in-line skating having an extendable and retractable wheel mechanism. The convertible shoe has cavities in the sole of the shoe capable of storing and enclosing the retracted wheel mechanism. The wheel mechanism allows the wheels to be held perpendicular to the walking surface of the sole when the wheel mechanism is extended, and parallel to the walking surface of the sole when the wheel mechanism is retracted. With the wheel mechanism extended, the convertible shoe can be used for in-line skating. With the wheel mechanism retracted and stored in the sole, the convertible shoe can be used for walking.

Abstract: A combined sports shoe and roller skate includes a sole having a chamber in which is mounted a collapsible roller assembly, wherein the roller assembly has a seat pivotally connected with linking rods, positioning rods, rear arms, front arms, rollers and torsion spring at two sides and a control mechanism is mounted on the seat and composed of a locking bolt, an axle, a pawl, a torsion spring, a tension spring and a pushbutton, whereby the sports shoe can be converted into a roller skate as desired simply by depressing a pushbutton and the roller skate can be also converted into a sports shoe by collapsing the roller assembly into a chamber at the bottom of the sole.

Abstract: A two-wheeled roller skate with canted wheels has an axle for the forward wheel located well forward of the ball of the foot. The axle for the rear wheel is located at the rear of the skater's heel. The wheels are canted so that the front and rear wheels contact the ground on the opposite sides of the center line of the skater's foot. In plan projection, the axles are preferably non-parallel in order to provide steering correction. The amount of steering correction desirable will depend on the skater's skill and the nature of the skating activity. In alternative embodiments, the present invention incorporates novel braking mechanisms.

Abstract: A convertible shoe that can be used for walking or for in-line skating having an extendable and retractable wheel mechanism. The convertible shoe comprises cavities in the sole of the shoe capable of storing and enclosing the retracted wheel mechanism. The wheel mechanism allows the wheels to be held perpendicular to the walking surface of the sole when the wheel mechanism is extended, and parallel to the walking surface of the sole when the wheel mechanism is retracted. With the wheel mechanism extended, the convertible shoe can be used for in-line skating. With the wheel mechanism retracted and stored in the sole, the convertible shoe can be used for walking.

Abstract: A dual-purpose roller skate comprises a boot, a sole plate provided with a plurality of receiving compartments, and a plurality of wheel sets equal in number to the receiving compartments. The wheel sets are pivoted to the receiving compartments of the sole plate such that the wheels of the wheel sets can be extracted from or retracted into the receiving compartments of the sole plate by an adjustment device.

Abstract: A two-wheel inline skate is disclosed having double-action turning means and dual surfaced wheel rollers providing maneuverability, traction, control, and safety in executing turns. The rollers have a two-point stance providing increased leverage and turning force, and are in combination with double-action wheel hangers. The double-action hanger mechanism incorporates elements of a kingbolt platform, a pivot post and a roller-supporting bracket, all emanating from a central hanger crossmember located directly over the roller. The entire hanger frame may be cast in one piece thus constituting a unified and strong hanger for the transmission of turning forces in operating the double-action mechanism.

Abstract: A two-wheeled roller skate with canted wheels has an axle for the forward wheel located well forward of the ball of the foot. The axle for the rear wheel is located at the rear of the skater's heel. The wheels are canted so that the front and rear wheels contact the ground on the opposite sides of the center line of the skater's foot. In plan projection, the axles are preferably non-parallel in order to provide steering correction. The amount of steering correction desirable will depend on the skater's skill and the nature of the skating activity. In alternative embodiments, the present invention incorporates novel braking mechanisms.

Abstract: A skate (10) is provided which includes a boot portion having a base portion (14) and a boot (12), a first member (42) pivotably connected at an upper longitudinal end thereof to the base portion (14), a second member (44) pivotably connected at an upper longitudinal end thereof to the base portion (14) and pivotably connected to the first member (42), a first wheel (16) mounted on the first member (42) at a lower longitudinal end thereof, a drive wheel (18) mounted on the second member (44) at a lower longitudinal end thereof, the drive wheel (18) having a concentrically mounted pinion (53), and an elongate driving mechanism (46) pivotably connected to the boot portion and adapted to operatively engage with the pinion (53). The skate (10) is movable between an expanded configuration wherein the base portion (14) is spaced from the first wheel (16) and the drive wheel (18) and a contracted configuration wherein the base portion (14) is adjacent the first wheel (16) and the drive wheel (18).