Self-adjusting pipe wrench

Tools – Wrench – screwdriver – or driver therefor – Slidable jaw adjustments

Patent

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Details

B25B 1320

Patent

active

039968200

ABSTRACT:
A self-adjusting pipe wrench which automatically positions itself about a desired article is disclosed. The term "self-adjusting" means that the pipe wrench can be automatically moved from an open position to a closed position when a specific member is actuated. The wrench comprises a wrench handle and a slidably mounted jaw member coupled to the wrench handle such that the jaw member may be selectively moved into a plurality of positions. A locking member is coupled to the handle and selectively engages the jaw member such that the locking member secures the jaw member in a predetermined position. An automatic return mechanism is coupled to the jaw member and to the wrench handle, whereby the jaw member is slidably moved into substantially closed position about a desired article when the locking member is disengaged from the jaw member. By use of the self-adjusting pipe wrench of the present invention, articles of varying sizes and shapes may be easily secured by the jaw member of the wrench in a simple, yet secure fashion.

REFERENCES:
patent: 1082112 (1913-12-01), Cutler
patent: 2050102 (1936-08-01), Kujala et al.
patent: 2760396 (1956-08-01), Simpson
patent: 2878702 (1959-03-01), Anderson
patent: 2914980 (1959-12-01), Flaig
patent: 3817128 (1974-06-01), Evans

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