Abstract: A recreation device, used for sliding downhill on a surface, on which the rider is suspended above the surface, either in a generally horizontal position—face up or face down—or in a reclined position, thereby providing the rider with a unique experience or sensation. The winter recreation device comprises a slide member having a top and a low friction bottom adapted for sliding on the surface, a support connected to the top of the slide member and extending upward away from the slide member, and a harness suspended from the support, wherein the support and harness are adapted to suspend a user of the apparatus above the surface.

Abstract: A swingable and speedable freewheeled vehicle includes a swingable device installed between a frame and each rear wheel. The swingable device has a guiding track fixed to a seated member, a spindle pivoted on said seated member, and a sliding assembly for sliding along the guiding track. Thereby, while driving the freewheeled vehicle via swinging, a sliding stem of the sliding assembly would slide along the guiding track and subject to an inertial force. Accordingly, a distance between the ground and the frame would be varied commensurately with the freewheeled vehicle moving along with the inertia force during the sliding so as to readily and speedily motivate the freewheeled vehicle forwards.

Abstract: A recreation device, used for sliding downhill on a surface, on which the rider is suspended above the surface, either in a generally horizontal position—face up or face down—or in a reclined position, thereby providing the rider with a unique experience or sensation. The winter recreation device comprises a slide member having a top and a low friction bottom adapted for sliding on the surface, a support connected to the top of the slide member and extending upward away from the slide member, and a harness suspended from the support, wherein the support and harness are adapted to suspend a user of the apparatus above the surface.

Abstract: A skag for a ski, such as a vehicle ski. The skag includes a carrier platform to be attached to the bottom surface of a ski. First and second longitudinal rails are disposed on the bottom surface of the carrier platform. The longitudinal rails are spaced apart laterally from one another. The first and second rails are staggered, such that the forward end of the first rail is farther forward than the forward end of the second rail, and the aft end of the second rail is farther aft than the aft end of the first rail. The aft end of the first rail may be at least as far forward as the forward end of the second rail. At least one of the rails may have a longitudinal keel disposed thereon, and at least one of the rails may have a hard-surface weld-disposed thereon. When two skags are used together, as on two adjacent skis, the rails and/or keels on the skags may be arranged so that one skag is a mirror reverse of the other.

Abstract: A stabilizer comprising three parallel wear blades each of which is made to remain sharpened over a long period of time. The side blades may contain holes to divert the snow and to add roughness when engaging into a ski path, while a rectangular central part runner provides a blade support of a given hardness and holding a central carbide blade of a much higher hardness, thereby permitting passage over rugged hard terrain without wearing the blade support. In soft abrasive gravel, the blade support wears partially thereby leaving a protruding central part, the protruding difference being self adjusting. In the case of the concave ski each side comprises a rectangular edge wear part coupled with a side blade for a total of four wear blades. The rectangular central part may be used alone, along with its central carbide blade within it.

Abstract: The present invention teaches a runner or blade for an ice skate having a novel configuration and structure, such as a blade having greater width at the edge at both the anterior end and posterior end relative to the middle, or alternately, a blade having greater width at the edge at the anterior end relative to the middle and posterior end. Further, a runner or blade for an ice skate can include a thermoplastic material, fiber fillers, metal fillers, and a hydrophobic material. In addition, the present invention teaches a hinged blade for a hockey skate.

Abstract: A stabilizer made of metal or plastic, fit on snow vehicle ski. It comprises a vertical fin forming a wing of a U-shaped section of a length sufficient to cover the bearing surface of the ski. A central channel is placed longitudinally in the centre of the U-shaped section to form with the wings a series of three parallel guides, digging a track on a surface to stabilize the direction of the ski in motion. When applied to a snowmobile ski the central channel is a bar such as used currently to protect the ski in asphalt crossings. Its wings are of steel and have a wall 19 mm high and 2 to 3 mm thick. The web is 56 to 58 mm wide and supports a corrector 6 mm thick and 56 mm wide and stretches on all the ski length. The bar is 6 mm higher than the wings.