Title:
Well apparatus
Document Type and Number:
United States Patent 2675874
Inventors:
Lamont, Springer Albert
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Publication Date:
04/20/1954
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Referenced by:
Export Citation:
Assignee:
Lamont, Springer Albert
Primary Class:
Other Classes:
251/339, 251/314, 137/68.110, 251/151, 166/330
International Classes:
E21B34/14; E21B34/00
US Patent References:
| 1850484 | Well pump | |||
| 1912578 | Method of and apparatus for recovering fluids from underground strata | |||
| 2071389 | Well cementing | |||
| 2091428 | Guiding floating and cementing device for well casings | |||
| 2168735 | Method of cementing wells | |||
| 2275937 | Cementing device for well casings | |||
| 2368419 | Well cementing apparatus | |||
| 2384675 | Apparatus for multiple stage cementing | |||
| 2433732 | Valve |