Folding tongs

Details Folding tongs Folding tongs

2006-06-08

2010-02-23

Chin, Paul T (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Resilient jaws

Reexamination Certificate

active

07665786

ABSTRACT:
A foldable tongs unit of the type having two pivotally joined legs has a storage position in which the legs lie in flush abutting relation so that the total thickness of the tongs unit in its storage position is the thickness of the two legs. Three transversely spaced fingers on each leg, when unstressed, reside in the plane of the leg and provide both the pivotal connection and the resilient bias against which the tongs are operated. The thickness of each of the joined non-flexing fingers is increased at the proximal end of the unit (i.e., at the hinge), permitting the pivot axis to be located substantially in the plane of abutment between the two legs in the storage position of the unit. In the actuation position, the ends of the foreshortened flexing fingers abut non-flexing fingers of the opposite leg to provide the desired resilient gripping function.

REFERENCES:
patent: 2346537 (1944-04-01), Fernandez
patent: 3596965 (1971-08-01), Woofter
patent: 6581997 (2003-06-01), Martikainen et al.
patent: 7086676 (2006-08-01), Sumter et al.
patent: 102004050632 (2006-04-01), None
patent: WO 97/41762 (1997-11-01), None

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