Ram type valve apparatus
United States Patent 3102709
US Patent References:
Outlet valve
- - 1863252

Blowout preventer
- - 2218093

Ram-type tubing head
- - 2593793

Check valves
- - 2912000


Inventors:
Herbert, Allen
Publication Date:
09/03/1963
View Patent Images:
Download PDF 3102709 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
CAMERON IRON WORKS INC
Primary Class:
251/1.300
Other Classes:
277/325, 251/332, 251/210, 137/630.220, 251/187, 251/175, 137/614.110, 251/282
International Classes:
E21B33/06; F16K3/28; E21B33/03; F16K3/00
Foreign References:
GB195692A