There is disclosed a harness for breathing apparatus comprising a structural support member for supporting a vessel of breathable gas, a waist belt, and a pivot joint mechanism coupling the structural support member to the waist belt. The pivot joint mechanism comprises a release part which is movable to decouple the structural support member from the waist belt.

A height-adjustable apparatus using a spring to urge forward and rearward undulating whippy locomotion is disclosed. A hand-crawling embodiment having a hand-glove assembly affixed to a base assembly enables users to engage in all-fours crawling locomotion while the body is conventionally situated in a two-legged orientation. One embodiment includes a forearm support bracket mounted at either a permanent or adjustable wrist angle. An internal stabilizer cylinder retainer is also provided to reduce inward pivoting of the internal stabilizer cylinder retainer in the direction of the opposite hand while permitting outward pivoting toward the outside of the device, and front-to-back pivoting toward the front side or backside of the device. A similar foot-bounding embodiment enables walkers, joggers, runners and jumpers to engage in forward and backward whippy locomotion. A crutch embodiment having a similar base assembly enables crippled or injured users to likewise engage in whippy locomotion.

A height-adjustable apparatus using a spring to urge forward and rearward undulating whippy locomotion is disclosed. A hand-crawling embodiment having a hand-glove assembly affixed to a base assembly enables users to engage in all-fours crawling locomotion while the body is conventionally situated in a two-legged orientation. One embodiment includes a forearm support bracket mounted at either a permanent or adjustable wrist angle. An internal stabilizer cylinder retainer is also provided to reduce inward pivoting of the internal stabilizer cylinder retainer in the direction of the opposite hand while permitting outward pivoting toward the outside of the device, and front-to-back pivoting toward the front side or backside of the device. A similar foot-bounding embodiment enables walkers, joggers, runners and jumpers to engage in forward and backward whippy locomotion. A crutch embodiment having a similar base assembly enables crippled or injured users to likewise engage in whippy locomotion.

A leg attachment assembly for a stilt device of the type used to support a user above a base surface. The stilt device has a shoe plate supportable above a floor plate via front and rear struts and a leg attachment assembly configured to attach a leg of the user to the stilt via a leg attachment mechanism and a leg pole. A leg pole attachment assembly includes an exterior clamp bracket that forms an open-box with a c-shaped channel into which is disposed an interior swivel clamp. The interior swivel clamp has a base portion that swivels over a limited range of motion within the c-shaped channel and is affixed to a side portion of the exterior clamp bracket using a horizontally extending fastener. Opposing flanges of the swivel clamp extend around the leg pole and are interconnected using a second fastener that extends orthogonally to the first fastener.

A leg attachment assembly for a stilt device of the type used to support a user above a base surface. The stilt device has a shoe plate supportable above a floor plate via front and rear struts and a leg attachment assembly configured to attach a leg of the user to the stilt via a leg attachment mechanism and a leg pole. A leg pole attachment assembly includes an exterior clamp bracket that forms an open-box with a c-shaped channel into which is disposed an interior swivel clamp. The interior swivel clamp has a base portion that swivels over a limited range of motion within the c-shaped channel and is affixed to a side portion of the exterior clamp bracket using a horizontally extending fastener. Opposing flanges of the swivel clamp extend around the leg pole and are interconnected using a second fastener that extends orthogonally to the first fastener.

A pneumatic pogo stick is provided that utilizes compressed air like a spring to have a potentially higher power to weight ratio than a comparable coil spring pogo stick. The pneumatic pogo stick includes an elongate cylindrical housing which forms a cylinder. Improvements are also provided to the piston and air shaft that allow for reduced hammering and a lower maximum compression ratio in order to provide relatively smooth jumping and landing while propelling a user to greater heights. Examples of such improvements include a hollow air shaft and modifications to the shape and structure of the piston.

A leg attachment assembly for a stilt device of the type used to support a user above a base surface. The stilt device has a shoe plate supportable above a floor plate via front and rear struts and a leg attachment assembly configured to attach a leg of the user to the stilt via a leg attachment mechanism and a leg pole. A leg pole attachment assembly includes an exterior clamp bracket that forms an open-box with a c-shaped channel into which is disposed an interior swivel clamp. The interior swivel clamp has a base portion that swivels over a limited range of motion within the c-shaped channel and is affixed to a side portion of the exterior clamp bracket using a horizontally extending fastener. Opposing flanges of the swivel clamp extend around the leg pole and are interconnected using a second fastener that extends orthogonally to the first fastener.

A leg attachment assembly for a stilt device of the type used to support a user above a base surface. The stilt device has a shoe plate supportable above a floor plate via front and rear struts and a leg attachment assembly configured to attach a leg of the user to the stilt via a leg attachment mechanism and a leg pole. A leg pole attachment assembly includes an exterior clamp bracket that forms an open-box with a c-shaped channel into which is disposed an interior swivel clamp. The interior swivel clamp has a base portion that swivels over a limited range of motion within the c-shaped channel and is affixed to a side portion of the exterior clamp bracket using a horizontally extending fastener. Opposing flanges of the swivel clamp extend around the leg pole and are interconnected using a second fastener that extends orthogonally to the first fastener.

A vertically adjustable construction stilt assembly includes a first stilt portion; a foot portion mounted to the first stilt portion; a second stilt portion movable with respect to the first stilt portion; a leg attachment mounted to the second stilt portion to retain a leg of a user to the second stilt portion; an adjustment system attached to the first stilt portion and the second stilt portion to selectively move the second stilt portion with respect to the first stilt portion; a wireless remote in communication with the adjustment system to selectively move the second stilt portion with respect to the first stilt portion to control a vertical height of the stilt assembly.

A vertically adjustable construction stilt assembly includes a first stilt portion; a foot portion mounted to the first stilt portion; a second stilt portion movable with respect to the first stilt portion; a leg attachment mounted to the second stilt portion to retain a leg of a user to the second stilt portion; an adjustment system attached to the first stilt portion and the second stilt portion to selectively move the second stilt portion with respect to the first stilt portion; a wireless remote in communication with the adjustment system to selectively move the second stilt portion with respect to the first stilt portion to control a vertical height of the stilt assembly.