Boring or penetrating the earth – Below-ground impact members – Resiliently biased
Patent
1977-04-22
1978-12-19
Purser, Ernest R.
Boring or penetrating the earth
Below-ground impact members
Resiliently biased
166 65R, 175 45, 175304, E21B 110, E21B 4702
Patent
active
041301692
ABSTRACT:
A remotely operated connector for electrically and mechanically coupling a wireline to a connector located at the bottom of a drill string. The connector includes a spring-actuated jar that facilitates the release of the connector.
REFERENCES:
patent: 2309310 (1943-01-01), Gratehous
patent: 3152829 (1964-10-01), Steele
patent: 3373817 (1968-03-01), Cubberley, Jr.
patent: 3406770 (1968-10-01), Arterbury et al.
patent: 3696332 (1972-10-01), Dickson, Jr. et al.
Pate III William F.
Purser Ernest R.
Shell Oil Company
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