Accession Number : ADD013465
Title : Sealing Apparatus for a Valve Body Opening.
Descriptive Note : Patent, Filed 3 Apr 86, patented 28 Jul 87,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Wilger, John F ; Orillo, Stephen, Jr ; Nakano, Gregory S
Report Date : 28 Jul 1987
Pagination or Media Count : 10
Abstract : An apparatus is provided for sealing the pressure side opening of a gate valve body which includes a pair of plates and a device for joining the plates for lateral and pivotal movements with respect to one another. A device is associated with the outside edge of one of the plates for engaging the nonpressure side of the gate valve and another device is associated with the outside edge of the other plate for sealing the pressure side opening of the gate valve. Each plate has a top camming surface and a bottom camming surface with the top camming surfaces of the plates being angled toward one another. A device engages the top and bottom camming surfaces of the plates for laterally spreading the plates so that the sealing device can be forced into sealing engagement with the pressure side opening of the gate valve body.
Descriptors : *GATE VALVES, *PATENTS, OPENING(PROCESS), PLATES, PRESSURE, SEALING COMPOUNDS, VALVES
Subject Categories : Hydraulic and Pneumatic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE