Hand tool having an adjustable head

Details Hand tool having an adjustable head Hand tool having an adjustable head

2006-08-01

2006-08-01

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S177700, C081S177850

Reexamination Certificate

active

07082862

ABSTRACT:
A hand tool having an adjustable head includes a handle, a head and a head locking assembly. The handle has an elongated slot with a bottom. The head has a body that has a pivot junction pivotally mounted in the elongated slot and having an exterior toothed surface. The head locking assembly includes a sliding block, a rotatable locking assembly and a block biasing assembly. The sliding block is slidably mounted in the elongated slot between the pivot junction and the bottom of the elongated slot and includes an engaging device to engage the exterior toothed surface of the pivot junction. The rotatable locking assembly is rotatably mounted in the sliding block and includes a locking device such as an eccentric cam to abut the bottom of the elongated slot to restrict the sliding block in motion and lock the head at a given angular position.

REFERENCES:
patent: 6216567 (2001-04-01), Hu
patent: 6295898 (2001-10-01), Hsieh
patent: 6386075 (2002-05-01), Shiao
patent: 6745650 (2004-06-01), Chang
patent: 6886429 (2005-05-01), Lee
patent: 6895839 (2005-05-01), Hsien

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