Tweezers with automatic opening and closing

Details Tweezers with automatic opening and closing Tweezers with automatic opening and closing

1987-10-19

1989-02-07

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Resilient jaws

B65G 712

Patent

active

048027030

ABSTRACT:
The tweezers (1) have a rigid closing ring (9) sliding without friction between the back end (5) of the tweezers, where the two legs of the tweezers are joined together, and the front (4) of the tweezers, where the tips (3) of the tweezers are located. Beyond the length over which it slides without friction, the ring (9) can slide further forward, overcoming friction and closing the tips (3) of the tweezers. It can also slide backwards beyond the frictionless length, until it either encounters a stop or experiences friction.

REFERENCES:
patent: 1108299 (1914-08-01), Wisman
patent: 2876778 (1957-03-01), Kees
patent: 3399583 (1968-09-01), Hall
patent: 4303268 (1981-12-01), Davidson
patent: 4389912 (1983-06-01), Dallons et al.
patent: 4452106 (1984-06-01), Tartaglia

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