Abstract: An optical screen panel and a method of making an optical screen panel is disclosed. The panel includes layers or rows of alternating, or interleaved, light transmitting and light blocking or opaque elements, and is extruded. The layers or rows are in the form of relatively small ribbon elements which are generally parallel to the direction of viewing, and thus generally perpendicular to the front plane of the panel itself, which is the viewing surface of the panel. Several embodiments are shown, including panels with light directing elements and light scattering elements. The light directing and scattering elements may be embossed in the extruding process or they may be extruded as separate layers and secured to the layered panel post extruding. Angled and curved layers are among the several embodiments. Ultra violet protection may also be provided to the optical screen layered panel. When no light source is “on,” and thus no light is being transmitted, the optical screen panel appears opaque.

Abstract: Prosthetic apparatus includes a pyramid adaptor and a pylon connected together by an outer sleeve, which may be an elastomeric element. The sleeve or element is clamped to both the pyramid adaptor and to the pylon to provide shock absorbing characteristics and to allow relative axial rotation between the pyramid adaptor and the pylon. Different configurations or embodiments of sleeves are illustrated, and the use of a third clamp is also illustrated.

Abstract: An optical screen panel and a method of making an optical screen panel is disclosed. The panel includes layers or rows of alternating, or interleaved, light transmitting and light blocking or opaque elements, and is extruded. The layers or rows are in the form of relatively small ribbon elements which are generally parallel to the direction of viewing, and thus generally perpendicular to the front plane of the panel itself, which is the viewing surface of the panel. Several embodiments are shown, including panels with light directing elements and light scattering elements. The light directing and scattering elements may be embossed in the extruding process or they may be extruded as separate layers and secured to the layered panel post extruding. Angled and curved layers are among the several embodiments. Ultra violet protection may also be provided to the optical screen layered panel. When no light source is “on,” and thus no light is being transmitted, the optical screen panel appears opaque.

Abstract: Prosthetic foot apparatus includes a flexible foot plate, an elastomeric block, and a tubular pylon element. The tubular pylon element includes an upper tubular portion, a partially flattened curved portion, and a generally flattened lower portion secured to the foot plate by an elastomeric block. The elastomeric block is configured to allow, with the pylon and the foot plate, inversion, eversion, dorsi flexion, and planar flexion movements of the apparatus to simulate ankle and toe movements of a normal foot. The foot plate and the tublar pylon allow for dorsi flexion and planar flexion movements, and the elastomeric block is appropriately configured to add inversion and eversion movements as well as dorsi flexion and planar flexion movements of the apparatus.

Abstract: Prosthetic apparatus includes a pyramid adaptor and a pylon connected together by an outer sleeve, which may be an elastomeric element. The sleeve or element is clamped to both the pyramid adaptor and to the pylon to provide shock absorbing characteristics and to allow relative axial rotation between the pyramid adaptor and the pylon. Different configurations of sleeves are illustrated, and the use of a third clamp is also illustrated.

Abstract: Prosthetic apparatus includes a pyramid adaptor and a pylon connected together by an outer sleeve, which may be an elastomeric element. The sleeve or element is clamped to both the pyramid adaptor and to the pylon to provide shock absorbing characteristics and to allow relative axial rotation between the pyramid adaptor and the pylon. Different configurations or embodiments of sleeves are illustrated, and the use of a third clamp is also illustrated.

Abstract: Prosthetic apparatus includes a pyramid adaptor and a pylon connected together by an outer sleeve, which may be an elastomeric element. The sleeve or element is clamped to both the pyramid adaptor and to the pylon to provide shock absorbing characteristics and to allow relative axial rotation between the pyramid adaptor and the pylon. Different configurations of sleeves are illustrated, and the use of a third clamp is also illustrated.

Abstract: A collar includes a counterbore for receiving a rim of a prosthetic leg tube. The collar is press fitted onto the tube, and a pyramid connector element is secured to the collar and the tube to connect the collar and tube to a user. Two different counterbore embodiments in the collar are disclosed, a tapered counterbore and a square counterbore. Set screws extend through aligned tapped apertures in the collar and tube.

Abstract: Shock absorber apparatus for a prosthetic leg and foot includes an elastomeric element secured to a pair of sleeves. The elastomeric element is secured to the sleeves through end retainers which are secured to the elastomeric element. The elastomeric element provides both shock absorber and torsional resistance functions. A cable, or a plurality of cables, is/are disposed about the elastomeric element and the end retainers to provide additional torsional resistance for the shock absorber apparatus. The shock absorber apparatus is appropriately secured to a prosthetic foot and to a user's leg or knee by conventional elements.

Abstract: Apparatus for transporting elements in a clean room environment includes a tubular element having a positive air pressure therein for providing a clean air environment and a cart movable in the tubular element. The cart may be movable by either an external propulsion system to which the cart is coupled or by an internal system to which the cart is coupled.

Abstract: Prosthetic foot apparatus includes a tubular element appropriately bent and flattened to provide desired flexibility. The extent of flexibility, and accordingly the extent of the bending and flattening of the tubular element provides desired stiffness or flexibility according to the desired characteristic, complementary of the user of the apparatus. Different embodiments are shown, including an embodiment which includes a separate foot plate secured to and extending into the foot portion of the tubular element.

Abstract: Prosthetic shock absorber rotation apparatus for a prosthetic leg includes an outer cylindrical element which may be secured to a prosthetic foot and a tubular member which extends in the opposite direction and which may be secured appropriately at an attachment location above or below the knee. A sleeve is disposed in the two members and a bushing is secured to the tubular member and moves with the sleeve. Extending between the sleeve and the outer cylindrical element are elastomeric elements. The elastomeric elements are disposed within the sleeve and bear against a wall in the outer cylindrical element to absorb shocks. A spring element attached between the outer cylindrical element and the tubular member allows limited rotational flexibility.

Abstract: Restraint chair apparatus includes four legs, a padded seat, a relatively high padded back which extends a substantial distance above the top of the head of an individual being restrained in the chair, and foot rest on which the restrained person's feet are disposed. Restraint straps are used to secure the individual's legs, arms, waist, and chest to the chair. Pivoting outrigger elements may be utilized to prevent the chair apparatus from being tipped sideways. The chair may be movable on wheels so that a restrained individual may be transported in the chair.

Abstract: Golf swing training apparatus includes a track mounted on the wall in a vertical orientation with a bracket movable vertically upwardly and downwardly on the track to adjust the height of the apparatus. A rod of a fixed length is secured to the bracket for rotational swiveling and pivoting movement. The end of the rod remote from the bracket is secured to a practice club through a coupling element. The coupling element allows rotational movement of the practice club with respect to the rod, but allows only limited angular motion in a plane which includes the rod and the practice club. The rod includes a bent tip which is substantially perpendicular to the overall length of the rod and the bent tip is maintained in a plane with the coupling element and the practice club throughout the practice swing.