Handling: hand and hoist-line implements – Grapple – Collar-engaging
Patent
1989-08-31
1991-01-01
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Collar-engaging
294902, B66C 166, E21B 1906
Patent
active
049813161
ABSTRACT:
An insert for use in a rod elevator assembly. The insert is coated with a fusion-bonded nylon coating which is resistant to damage from the rod and which does not damage the plastic coating on the rod. Both inserts in a two-insert assembly are coated, and all surfaces of the inserts may be coated.
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patent: 4823919 (1989-04-01), Hayatdavoudi
Cherry Johnny D.
Ebel Jack E.
Hummel Jack L.
Marathon Oil Company
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