A skate includes an inverted groove-shaped base secured to a boot and including front and rear pins; an elongated frame including front and rear sets of a transverse inner groove and a transverse open groove communicating with the transverse inner groove, and a threaded hole on the transverse open groove of the front set wherein either pin is disposed in the transverse inner groove and the elongated frame abuts an underside of the base; and a locking device including a spring biased block member disposed in the transverse open groove of the front set and having two projections at two ends respectively, a screw driven through a positioning member into the threaded hole to fasten the positioning member in the transverse open groove of the front set so that the block member abuts the front pin to block same in an assembled state.

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

A locomotion apparatus that has a base that secures a skateboard platform to a snow ski as a combination. The base is secured into position by bindings of a ski. A brake mechanism is provided that has a brake seat, a lever arm and a spring arm that cooperate with each other to enable the brake mechanism to move between a deployed brake position, at which the combination brakes to prevent its locomotion, and a non-deployed brake position, at which the locomotion is enabled.

A linkage binding for coupling a user's shoed or booted foot to another object, such as a ski or snowshoe. The linkage binding may include an upper plate including an upper surface to which a user's shoed or booted foot is to be secured, a lower plate including a lower surface to which another object is to be secured, a front connecting link hingedly attached to both the upper plate and the lower plate, and a rear connecting link hingedly attached to both the upper plate and the lower plate to form a 4-bar linkage.

An adjustable ski binding adapter apparatus that adapt a snowboard boot for use with alpine ski bindings. The ski binding adapter apparatus includes a back support pivotally coupled to a sole plate, where the back support pivots to aid in stepping into the ski binding adapter apparatus. The sole plate is adjustable for length. Adjustable strap assemblies are coupled to the sole plate and the back support and snugly encircle and restrain the boot in the ski binding adapter apparatus. The back support and the sole plate are configured to conform to ski boot standards and attach to a conventional ski binding.

An apparatus that secures a skateboard platform to a snow ski with a base that has a sliding member and stationary member. An adjustment mechanism urges the sliding member to move toward or away from the stationary member. A stabilizer is movable toward and way from the sliding member via a guide path in the base. The stabilizer has two components that move one inside the other to lengthen or shorten a distance between their respective ends. The sliding member has a protruding portion that fits into a front snow ski binding. The stationary member snaps into the rear snow ski binding. The front binding is sandwiched between the stabilizer and the sliding member.

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

A microsurgical handle and instrument may include an actuation structure having an actuation structure distal end and an actuation structure proximal end, a plurality of actuation arms of the actuation structure, and an actuation structure base. A compression of the actuation structure may be configured to extend the actuation structure distal end relative to the actuation structure proximal end. A compression of the actuation structure may be configured to expand an extension joint of an actuation arm of the plurality of the actuation arms. A decompression of the actuation structure may be configured to retract the actuation structure distal end relative to the actuation structure proximal end. A decompression of the actuation structure may be configured to collapse an extension joint of an actuation arm of the plurality of actuation arms.

A skiing apparatus including a lower seat member, a lower frame member, a ski attachment member, and upper shock absorbing connector member, a lower shock absorbing connector member, and a lower storage member. The lower frame member may connect to the lower seat member. The ski attachment member may connect to the lower frame member and be adapted to be detachably connected to a ski. The upper shock absorbing connector member may connect to the lower seat member. The lower shock absorbing connector member may connect to the lower frame member. The lower storage member may connect to the lower seat member.