Pivot head wrench

Details Pivot head wrench Pivot head wrench

1997-06-20

1999-01-26

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

8117785, B25B 2316

Patent

active

058627235

ABSTRACT:
The present invention involves a pivot head wrench having a body section pivotally connected to a handle section, and further having locking means for locking the relative angular position of the body section and the handle section. The locking means comprises a receiver surface on one of the sections, a ball engaging the receiver surface, and a ball position controller comprising a pin having a stepped shape. The pin has a first surface which forces the ball into locking engagement with the receiver surface, and has a second position which permits disengagement of the ball from the receiver surface for permitting pivoting of the head. The spring is biased in a position where the first service engages the ball for locking the orientation of the head section relative to the handle section.

REFERENCES:
patent: 1325407 (1919-12-01), Morgan
patent: 1431389 (1922-10-01), Frisz
patent: 2028561 (1936-01-01), Pilger
patent: 2294510 (1942-09-01), Nakano
patent: 2671367 (1954-03-01), Modin
patent: 3039340 (1962-06-01), Livermont
patent: 3186265 (1965-06-01), Wenturine et al.
patent: 3270597 (1966-09-01), Neff et al.
patent: 3348436 (1967-10-01), Robinson
patent: 3383962 (1968-05-01), Harris
patent: 4327611 (1982-05-01), Catanese et al.
patent: 4463632 (1984-08-01), Parke
patent: 4581959 (1986-04-01), Troiano

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