Inventor
YOHNER PAUL A
US5 patents
Patents
5 patentsUS4685611AAug 11, 1987
Butterfly valve construction having a composite seat
KEYSTONE INT32 citations91
US4541612ASep 17, 1985
Rotatable shaft assembly
KEYSTONE INT29 citations89
US4828221AMay 9, 1989
Valve assembly
KEYSTONE INT17 citations72
US5125624AJun 30, 1992
Apparatus for a disc-stem connection
KEYSTONE INT13 citations71
US4953276ASep 4, 1990
Apparatus for inserting valve seats in valve bodies
KEYSTONE INT10 citations71