MATHEW L FREEMAN
Engineers in Upper Makefield, PA
License number
Pennsylvania PE000617K
Category
Engineers
Type
Professional Engineer
Address
Address
Upper Makefield, PA 18940
Professional information
Main Steam Isolation Check Valve
US Patent:
3972504, Aug 3, 1976
Filed:
Dec 2, 1974
Appl. No.:
5/528650
Inventors:
Roland DiSabatino - Cherry Hill NJ
Henry W. Matthews - Richboro PA
Mathew L. Freeman - Newtown PA
Henry W. Matthews - Richboro PA
Mathew L. Freeman - Newtown PA
Assignee:
Ametek, Inc. - New York NY
International Classification:
F16K 1518
US Classification:
251 82
Abstract:
A valve arrangement having a disc which is tapered in cross section from the center to the periphery so that upon impact closure with the seat, deformation of the disc will absorb impact energy. The valve arrangement can consist of two check valves in back-to-back relation, the valve discs being swingable relative to the seats therefor, one of the valves being held in an open position and released upon abnormal conditions so that it can close.