Title:
Blowout preventer and packer and hole closer therefor
United States Patent 2746709


Inventors:
Minor, Burt S.
Application Number:
US20729151A
Publication Date:
05/22/1956
Filing Date:
01/23/1951
Assignee:
REGAN FORGE & ENG CO
Primary Class:
Other Classes:
24/463, 251/1.2, 251/5, 277/332
International Classes:
E21B33/06
View Patent Images:
US Patent References:
2573712Throttle valve1951-11-06
2518625Flow bean1950-08-15
2182899Packer1939-12-12
2176355N/A1939-10-17
1930361Contractible and expansible well packer1933-10-10
1872498Blow-out preventer1932-08-16
1861755Blowout preventer and well sealing means1932-06-07
1861726Blow-out preventer1932-06-07
1772210Casing-head packing and oil saver1930-08-05