Abstract: A prosthetic device and related methods having height adjustment features. A prosthetic foot includes an elongate support member comprising fiber reinforced material and having a support surface configured to rest upon a ground surface prior to use, an adapter mounted to the support member and configured to secure the prosthetic foot to another prosthetic device, and a height adjustable feature configured to adjust a height of the adapter relative to the support surface.

Abstract: A prosthetic device includes a polymer lattice structure. The lattice structure includes a first surface arranged to face toward a residual limb, a second surface arranged to face away from the residual limb, a thickness between the first and second surfaces, and a variable lattice density across the thickness.

Abstract: A prosthetic device includes a polymer lattice structure. The lattice structure includes a first surface arranged to face toward a residual limb, a second surface arranged to face away from the residual limb, a thickness between the first and second surfaces, and a variable lattice density across the thickness.

Abstract: A waste heat utilization system and associated methods for preheating fuel for a turbine engine component. The turbine engine component includes at least one heat generating source. The system includes structure for applying heat from the at least one heat generating source to relatively cold fuel for the turbine engine component to preheat the fuel prior to ignition.

Abstract: An instrumentation fitting includes a main body. The main body includes a first end configured to be inserted into an aperture of a vessel and a second end including at least one slot configured to accommodate at least one lead of at least one sensor. The instrumentation fitting further includes a gasket assembly supported by the second end of the main body. The gasket assembly includes a first gasket and a second gasket. The second gasket includes an aperture through which the at least one lead may pass. A flange is secured to the main body. The flange includes at least one aperture configured to receive at least one fastener. A cover plate is configured to be removably attached to the main body by the at least one fastener. The cover plate is configured to contact the first gasket and compress the at least one lead between the first and second gaskets when attached to the main body.

Abstract: A waste heat utilization system and associated methods for preheating fuel for a turbine engine component. The turbine engine component includes at least one heat generating source. The system includes structure for applying heat from the at least one heat generating source to relatively cold fuel for the turbine engine component to preheat the fuel prior to ignition.

Abstract: A vacuum pump having shock absorption and controlled rotation for use in an artificial limb. The pump includes a housing having a first chamber, and a shaft configured to be received by and to reciprocate within the first chamber, the housing and shaft forming a pump chamber. A piston may be coupled to the shaft and positioned within the pump chamber, and intake and exhaust ports are fluidly coupled to the pump chamber. Rotational structure is mounted with respect to the pump to provide controlled rotation of the shaft relative to the housing, and shock absorption structure is included within the pump to provide shock absorption for the shaft. Both a pneumatic spring and a mechanical spring element may be provided for the shock absorption structure. An optional adapter couples the shaft to the pylon of an integral pylon prosthetic foot.

Abstract: A simple, wide ranging multi-axial foot with energy return and/or storage. An upper member and a spaced apart lower member are joined through a post connected to the lower member and a ball joint connected to the upper member. One buffer is located anterior to the ball joint-post, one buffer is located posterior to the ball joint-post. A heel member and heel buffer provide additional energy storage and return.