Accession Number : ADD005534

Title :   Liquid-Gas Constant Force Recoil Spring.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Kiraly,Louis J

Report Date : 22 Aug 1978

Pagination or Media Count : 6

Abstract : A constant-force spring of the liquid-gas type comprising a piston slidable in a cylinder and an elastomeric bladder enclosed in the cylinder. The bladder is filled with a gas, preferably nitrogen. The rest of the cylinder is filled with a compressible liquid having a low bulk modulus. A liquid that can be used is dimethyl silicone which has a bulk modulus of only 150,000 psi. The low bulk modulus gives a low spring constant which is necessary if a constant force characteristic is to be achieved. (Author)

Descriptors :   *Patents, *Recoil mechanisms, *Springs, Liquids, Gases

Subject Categories : Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE