Tongs

Details Tongs Tongs

2007-11-27

2007-11-27

Kramer, Dean J (Department: 3652)

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

C294S016000, C414S917000

Reexamination Certificate

active

11476670

ABSTRACT:
A first tong member includes a first 4-joint linkage, in which both pairs of opposite rods are substantially equal, in length, to each other; a second tong member likewise includes a second 4-joint linkage, in which both pairs of opposite rods are substantially equal; and the first and second linkages have one of the foregoing rods in common. The first linkage has a first arm extended from the rod opposite to the common rod, and the second linkage likewise has a second arm extended from the rod opposite to the common rod, so that when respective actuating tails of the first and second tong members are operated in an arcuate manner, an opening width in the article-seizing area is configured to be capable of being adjusted, while the first and second extended arms in a substantially parallel relationship with each other maintain a substantially constant distance defined in between.

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patent: 2002-355160 (2002-12-01), None

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