BOYD A KESSINGER
Engineers in Murrysville, PA
License number
Pennsylvania PE004001E
Category
Engineers
Type
Professional Engineer
Address
Address
Murrysville, PA 15668
Professional information
Overflow Control Valve
US Patent:
4461317, Jul 24, 1984
Filed:
Apr 6, 1981
Appl. No.:
6/251647
Inventors:
Rolv Hundal - Hempfield PA
Boyd A. Kessinger - Murrysville PA
Edward A. Parlak - North Huntingdon PA
Boyd A. Kessinger - Murrysville PA
Edward A. Parlak - North Huntingdon PA
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
Department of Energy - Washington DC
International Classification:
F16L 2900
US Classification:
137565
Abstract:
An overflow control valve for use in a liquid sodium coolant pump tank which valve can be extended to create a seal with the pump tank wall or retracted to break the seal thereby accommodating valve removal. An actuating shaft which controls valve disc position also has cams which bear on roller surfaces to force retraction of a sliding cylinder against spring tension to retract the cylinder from sealing contact with the pump tank.