Remotely controlled latch for well tools
United States Patent 3071188
US Patent References:
Sucker-rod overshot fishing tool
- - 1470114
Quick-disconnect coupling with selectively operable valve
- - 2675829
Nonrotary threaded coupling
- - 2737248
Non-rotary threaded coupling
- - 2849245
Well packer
- - 2854080
Sucker-rod overshot fishing tool
- - 1470114
Quick-disconnect coupling with selectively operable valve
- - 2675829
Nonrotary threaded coupling
- - 2737248
Non-rotary threaded coupling
- - 2849245
Well packer
- - 2854080
Inventors:
Raulins, George M.
Publication Date:
01/01/1963
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Export Citation:
Assignee:
OTIS ENG CO
Primary Class:
Other Classes:
285/322, 166/340, 285/906, 166/365, 285/18, 285/920, 285/34, 285/81
International Classes:
E21B33/038; E21B33/03
US Patent References:
| 2872238 | Well pulling tool |