Inventor
TINHOLT THOMAS
US4 patents
Patents
4 patentsUS4915134AApr 10, 1990
Three-way poppet valve with hollow stem
HUMPHREY PROD CO66 citations93
US5211198AMay 18, 1993
Poppet construction for valve
HUMPHREY PROD CO51 citations89
US4971115ANov 20, 1990
Four-way poppet valve with hollow stem and four-port body
HUMPHREY PROD CO31 citations89
US4842020AJun 27, 1989
Double-solenoid single-stem four-way valve
HUMPHREY PROD CO22 citations79