Ratchet open-end wrench

Details Ratchet open-end wrench Ratchet open-end wrench

2006-07-18

2006-07-18

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Sliding jaw face

C081S058200

Reexamination Certificate

active

07077035

ABSTRACT:
A ratchet open-end wrench has a handle with a head portion at an end thereof. The head portion has two jaw, between which is a gap to receive a bolt therein. The jaw has a recess, wherein a space formed from the gap and the recess allows the bolt for free rotation. The jaw is provided with a stepped bore, in which a holding assembly is received, and a hole, in which a restriction assembly is received. The bolt is held by the jaw and a shaft of the holding assembly to be rotated. While the handle is turned with the reacting force of the bolt aligned with a radial direction, the bolt is rotated by the shaft and the jaw. While the handle is turned to a reverse direction, the reacting force of the bolt move the shaft inwards to keep the bolt still.

REFERENCES:
patent: 4255990 (1981-03-01), Doan
patent: 5768958 (1998-06-01), Gamble
patent: 6202516 (2001-03-01), Kim
patent: 6945143 (2005-09-01), Kim
patent: 2004/0031359 (2004-02-01), Kady

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