Ratchet wrench having two driving devices

Details Ratchet wrench having two driving devices Ratchet wrench having two driving devices

2007-02-27

2007-02-27

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S058100

Reexamination Certificate

active

11297605

ABSTRACT:
A ratchet wrench includes a handle having an internal gear formed in a head, two annular members rotatably received in the head and each having an internal gear, a stem rotatably engaged in the handle and having a pinion for engaging with and for rotating the annular members relative to the head. A shank is rotatably engaged in the head and includes four spring biased pawls each having one or more teeth for engaging with and for controlling the driving direction of the shank by the head or the annular members and the stem. The shank includes a through engaging hole having two open ends for selectively engaging with driven members by disposing the shank up aide down relative to the driven members.

REFERENCES:
patent: 2206802 (1940-07-01), Brenning
patent: 3272037 (1966-09-01), Bruehl
patent: 4296654 (1981-10-01), Mercer
patent: 4362072 (1982-12-01), Tillman
patent: 5058463 (1991-10-01), Wannop
patent: 5584220 (1996-12-01), Darrah et al.
patent: 6070499 (2000-06-01), Wisbey
patent: 6311584 (2001-11-01), Chu
patent: 6457386 (2002-10-01), Chiang

Affiliated with

Also associated with

Rating

Ratchet wrench having two driving devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ratchet wrench having two driving devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchet wrench having two driving devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3841820