Accession Number : AD0164098

Title :   Pressure Chamber Closure.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Morin,Richard A. ; Lanphier,Edward H.

Report Date : 17 OCT 1972

Pagination or Media Count : 7

Abstract : The patent relates to an access door for a pressure vessel wherein the door itself is the only moving part and the pressure difference between the interior of the chamber and ambient exterior pressure is the only sealing force provided. The door is in the form of a disc or wafer made of metal or solid plastic material and holds in position a sealing ring having a peripheral groove for receiving one O ring and a groove on the surface facing the door for receiving a second O ring. The door is rolled manually by a substantially radially extending handle. The chamber is cut to receive the door laterally and recessed internally to permit the sealing ring to be moved axially into sealing position in the recess.

Descriptors :   (*Watertight doors, *Patents), (*Underwater equipment, *Pressure vessels), Watertight fittings, O-rings, Seals, Structural parts

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE