Pivotal latch for a sucker rod puller

Details Pivotal latch for a sucker rod puller Pivotal latch for a sucker rod puller

1976-03-17

1977-11-15

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Collar-engaging

403331, B66C 100

Patent

active

040583392

ABSTRACT:
A pivotal latch for a sucker rod puller is designed to be placed on a cross-member separating a first chamber being receptive of the collar of the sucker rod and a second chamber containing the latch. Slideably disposed over the main body containing the first and second chambers is a sleeve being of sufficient length to cover the first chamber and to uncover the second chamber when slideably disposed in a first position so that the pivotal latch automatically engages the end of the sleeve. The sleeve can be further slideably disposed in a second position over the second chamber thereby enabling the sucker rod collar to be removed from the first chamber and thereby holding the pivotal latch in a deactivated state against the inner surface of the sleeve.

REFERENCES:
patent: 243859 (1881-07-01), Cushing
patent: 1592706 (1926-07-01), Pridgen
patent: 1798296 (1931-03-01), Yerkes et al.
patent: 2149938 (1939-03-01), Hickman
patent: 2300370 (1942-10-01), Lowery
patent: 3368838 (1968-02-01), Reich

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