Abstract: An exercise apparatus to exercise the upper and lower body that is powered by a simulated rowing motion is described. The exercise apparatus includes a frame, front and rear wheels, a slide rail, a lever arm, a steering mechanism and a drive mechanism that translates the user's energy to propel the exercise apparatus. The rotation point of the lever arm, the fulcrum of the lever arm, the maximum distance the lever arm travels fore and aft, and the length of the lower portion of the lever arm, among others is adjustable to maximize efficiency or effectiveness of exercising the user's upper and lower body. Stabilizing members are attachable to the rear wheel axle, wherein the stabilizing members are adjustable to either elevate the rear wheel above the riding surface or provide stabilization to the extent required by the user.

Abstract: An exercise apparatus that is powered by a simulated rowing motion is described. The exercise apparatus includes a frame, slide rail, lever arm, steering mechanism and drive mechanism which together require the use of both the rider's upper and lower body muscles. A portion of the steering cables and drive mechanism are contained within a hollow portion of the lever arm. This containment provides added safety to the rider and reduces the likelihood of the cables or chain catching in either the clothing of the rider or objects the rider passes while riding the exercise apparatus. A stand is demountably engaged to the rear axle, providing the option of using the exercise apparatus as a stationary exercise machine.

Abstract: The present invention is a wrist guard which has a molded body having its first end configured to contact a user's palm and a second end configured to engage the user's forearm. A thumb receiving member is located at a first side of the palm end of the wrist guard and is designed to prevent overextension of the thumb. The forearm portion stabilizes the wrist guard so it does not rotate. The first strap extends betweens the thumb covering and the opposing side of the first end of the palm and of the stiff body member. This strap is selectively adjustable to ensure proper fit. A second strap is located at the forearm end of the wrist guard. This strap, like the first strap, is selectively adjustable to ensure proper fit. The user will insert their thumb into the thumb receiving member and tighten the straps for securing the wrist guard.

Abstract: An anti-lock brake for in-line skates, skateboards, or the like. The brake is adapted to be selectively secured to the wheel frame proximate the rear wheel and comprises a pivoting tongue member engaging the circumference or ground engaging surface of the rear wheel when an integral braking skid pad is caused to firmly engage the ground. A resilient member resiliently inhibits the tongue member for engaging the rear wheel except during a severe braking operation. The skid pad remains the primary braking mechanism, and the tongue provides a second anti-lock braking mechanism. The tongue of the pivoting member has a concave surface closely conforming to the contour of the rear wheel to minimize tire wear, and further insures that wear does not distort the shape of the wheel. A large contact surface is established when the braking tongue engages the wheel to distribute the heat generated therebetween to reduce the chance of the wheel melting.

Abstract: An improved skate assembly which permits interchanging and reversing of ice blades and in-line rollers. The arrangement provides for such interchange through utilization of a pair of rotatable cams which are utilized to couple the blade support to the toe and/or heel of the boot. Also, an interlocking notch/projection may be employed to achieve secure mounting of the blade support subassembly to the boot. Also disclosed is an attachment mechanism which can be used by the hands, and which requires no external tooling.

Abstract: An improved skate assembly which permits interchange of ice blades and in-like rollers. The arrangement provides for such interchange through utilization of a rotatable cam which is utilized to couple the blade support to the toe and/or heel of the boot. Also, an interlocking notch/projection may be employed to achieve secure mounting of the blade support subassembly to the boot.