Accession Number : ADD012948
Title : Shock Absorbing Device with Integral Pressure Relief Valve.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Personal Author(s) : Franzen,Robert L
Report Date : 23 Jun 1987
Pagination or Media Count : 8
Abstract : This patent discloses a liquid spring shock absorbing device comprising an hydraulic piston with an integral surge valve. The hydraulic piston is positioned within a fluid filled piston housing and is made up of a piston body, a spring reaction plate and a piston heat. A large annular spring and a small annular spring are positioned adjacent to the spring reaction plate. Short duration shocks are transmitted by the fluid to cause rotation of annular spring which opens a relief valve port. Long duration, high intensity shocks cause compression of both annular springs, opening of the relief valve port and movement of a hydraulic piston.
Descriptors : *PATENTS, *RELIEF VALVES, *SHOCK ABSORBERS, HYDRAULIC EQUIPMENT, PISTONS, SPRINGS, HYDRAULICS, FILLINGS, FLUIDS, PRESSURE, LONG RANGE(TIME), HEAT, ROTATION, SURGES
Subject Categories : Machinery and Tools
Distribution Statement : APPROVED FOR PUBLIC RELEASE