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