Title:
Well blowout preventer
United States Patent 2749078


Inventors:
Losey, Thomas B.
Application Number:
US23358951A
Publication Date:
06/05/1956
Filing Date:
06/26/1951
Assignee:
GUIBERSON CORP
Primary Class:
International Classes:
E21B33/06
View Patent Images:
US Patent References:
2593793Ram-type tubing head1952-04-22
2592197Side-plug hydraulic cellar gate1952-04-08
2278050Well head closure1942-03-31
2218093Blowout preventer1940-10-15
2162018Blow-out preventer1939-06-13
2154955Well casing control valve1939-04-18
2136465Oil saver1938-11-15
2090206Blowout preventer ram1937-08-17
2060252Floating block gate ram1936-11-10
1891686Blow-out preventer attachment1932-12-20
1713364Tubing oil saver1929-05-14