Abstract: A takedown pin assembly for a firearm is disclosed. The takedown pin assembly comprises an elongate pin, a spring, and a head disposed on one end of the pin. The pin further comprises a channel extending along at least a portion of the elongate pin in the direction of the pin's longitudinal axis. The channel has a width sufficient to receive a detent pin from a firearm. The elongate pin is configured to fit within a hole in an upper receiver or lower receiver of a firearm. The head has a lever handle extending laterally from a center portion of the head. A user engages the lever on the head to rotate the pin and allowing the detent pin to travel in the channel. The spring pushes the pin out from the firearm receivers to allow the user to open the action.

Abstract: The present invention relates to dermal vaccine formulations, designed for targeted delivery of an immunogenic composition to a dermal compartment of skin including the intradermal and epidermal compartments. The dermal vaccine formulations of the invention comprise an antigenic or immunogenic agent, and at least one molecule, e.g., a chemical agent, which enhances the presentation and/or availability of the antigenic or immunogenic agent to the immune cells of the intradermal compartment or epidermal compartment resulting in an enhanced immune response. The dermal vaccine formulations of the invention have enhanced efficacy as the antigenic or immunogenic agent is delivered to the intradermal compartment or epidermal compartment with enhanced presentation and/or availability to the immune cells that reside therein.

Abstract: An orthopaedic pillow cover for supporting a human neck and head includes a tubular fabric pillow band open in both of its respective ends for encircling a conventional pillow. Two neck support rolls are pivotally connected opposite one another to an inside surface of the pillow band and are positioned perpendicular to the respective ends of the pillow band.

Abstract: An adjustable backrest for supporting a human back comprising a straight spine member; a lumbar support member projecting from the straight spine member; an upper back support member projecting from the straight spine member adjacent the lumbar support member; a back pad resting on the lumbar support member and the upper back support member for supporting the human back. Structure is provided for adjusting curvature of the lumber support member and for adjusting curvature of the upper back support member to accommodate different shapes of the human back, as well as for providing side-to-side mobility of the back pad to accommodate twisting movement of the human back.

Abstract: An adjustable backrest for supporting a human back comprising a spine member; a lumbar support member projecting from the spine member; a back pad resting on the lumbar support member for supporting the human back; means for adjusting curvature of the lumbar support member and means for adjusting curvature of different portions of the back pad to accommodate different shapes of the human back; means for providing side-to-side mobility of the back pad to accommodate twisting movement of the human back.

Abstract: An adjustable backrest for supporting a human back comprising a straight spine member; a lumbar support member projecting from the straight spine member; an upper back support member projecting from the straight spine member adjacent the lumbar support member; a back pad resting on the lumbar support member and the upper back support member for supporting the human back; means for adjusting curvature of the lumber support member and means for adjusting curvature of the upper back support member to accommodate different shapes of the human back; means for providing side-to-side mobility of the back pad to accommodate twisting movement of the human back.