Socket pipe wrench

Details Socket pipe wrench Socket pipe wrench

1989-03-15

1990-05-01

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

81126, 81 532, B25B 1316

Patent

active

049208349

ABSTRACT:
A socket for tightening and loosening objects having a generally cylindrical section. The socket has a sliding jaw therein which grabs the object to be twisted similar to a pipe wrench. Thus objects with a smooth surface, such as pipes, may be twisted. The socket has small teeth on the inner wall to allow it to grab bolts and nuts regardless of the shape thereof (hexagonal or square), and can even grab worn down bolts and nuts. The jaw is crescent shaped, and wedged. A cam along the inside of the socket assist the grabbing action of the jaw.

REFERENCES:
patent: 1195901 (1916-08-01), Barrett
patent: 1279349 (1918-09-01), Johnson
patent: 1576918 (1926-03-01), Lidell
patent: 3425302 (1969-02-01), Davis
patent: 3877328 (1975-04-01), Sullivan
patent: 4569257 (1986-02-01), Hess

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