Accession Number : ADD007210

Title :   Pneumatic Valve.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Thalhamer,Arnold G

Report Date : 22 Apr 1980

Pagination or Media Count : 11

Abstract : A pneumatic valve for controlling the inflation of floatation bladders in diver-deployed underwater recovery apparatus comprises, in one embodiment, an inlet connectable to a source of pressurized air, two small semicircular flow passages joining the inlet to an outlet which connects to the bladders, a pair of spring-biased control pistons mounted in parallel in the two flow passages and another spring-biased outlet piston in a larger outlet passage positioned between the flow passages and the outlet. Air flow allowed by either of the control pistons impinges on an end of the outlet piston, displacing it from a normally closed to an open position to permit air flow through the larger outlet passage. (Author)

Descriptors :   *Patents, *Pneumatic valves, Air flow, Diver equipment, Underwater objects, Recovery, Air flow, Compressed air, Pistons, Inflatable structures, Flotation, Bladders

Subject Categories : Hydraulic and Pneumatic Equipment
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE