Welding tongs

Details Welding tongs Welding tongs

2005-04-05

2005-04-05

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

For bonding with pressure

Reexamination Certificate

active

06875945

ABSTRACT:
A pair of welding tongs includes two moveable tong arms, with each tong arm including a first arm element with an electrode, a second arm element, and a connecting element disposed between the first and second arm elements, whereby the connecting elements of the tong arms can rotate about a common fixed reference point. An articulated lever is connected to the second arm element. The pair of welding tongs further includes a mechanical coupling to link the articulated levers of the tong arms, and a drive unit for driving the mechanical coupling. The motion of the mechanical coupling is transmitted to each tong arm of the welding tongs.

REFERENCES:
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patent: 5739499 (1998-04-01), Suzio et al.
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patent: 19948043 (2001-04-01), None
patent: 19955691 (2001-06-01), None
patent: 1997-248678 (1997-09-01), None

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