Inventor

HEYMANN FRANK J

US4 patents

Patents

4 patents

US5014746AMay 14, 1991

Hole pattern for valve muffler

WESTINGHOUSE ELECTRIC CORP60 citations92

US4812105AMar 14, 1989

Bell seal and retaining nut for high pressure turbines

WESTINGHOUSE ELECTRIC CORP18 citations70

US4766932AAug 30, 1988

Steam control valve

WESTINGHOUSE ELECTRIC CORP19 citations70

US5146945ASep 15, 1992

Seal ring retainer and guide ring for valve plug

WESTINGHOUSE ELECTRIC CORP10 citations64