Inventor
HOULGRAVE ROBERT C
7 patents
⚠️ This page may combine multiple inventors who share the name “HOULGRAVE ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ACF IND INC
4 patentsUS4124194ANov 7, 1978
Metallic seat construction for valves
ACF IND INC61 citations95
US4116419ASep 26, 1978
Limited float seat construction for expanding gate valve
ACF IND INC25 citations81
US4103863AAug 1, 1978
Actuator for expanding gate valves
ACF IND INC25 citations79
US4258743AMar 31, 1981
Expanding gate valve having mechanically secured seats
ACF IND INC15 citations71