Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head
Reexamination Certificate
2006-06-06
2006-06-06
Wilson, Lee D. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle clutched to head
C081S058400, C081S058300, C192S043200
Reexamination Certificate
active
07055411
ABSTRACT:
An improvement in ratchet coupling means of a driving tool includes a driving member inserted into a handle and covered by a control ring, a ratchet ring and a circular cap, a pair of springs biase the checking blocks in the driving member each having teeth on the sloped surface engaged in the teeth of the ratchet ring and selectively operated by four diagonally arranged stir bars in the control ring which further has three separate positioning grooves respectively engageable within a spring biased steel ball from the driving member for permitting the ratchet driving tool to conduct three fastening modes by its hexagonal socket wrench. A phillips tipped hexagonal shank may be secured to the driving tool by necessary components to change the socket wrench into a screwdriver.
REFERENCES:
patent: 3651718 (1972-03-01), Thomasian
patent: 5582081 (1996-12-01), Lin
patent: 5687820 (1997-11-01), Lin
patent: 6047617 (2000-04-01), Chen
patent: 6622597 (2003-09-01), Chen
patent: 6644147 (2003-11-01), Huang
patent: 6935211 (2005-08-01), Chen
patent: 2002/0079181 (2002-06-01), Hsiao
patent: 2002/0102143 (2002-08-01), Huang
patent: 2003/0126958 (2003-07-01), Ping
Grant Alvin J.
Wilson Lee D.
LandOfFree
Ratchet coupling means for a driving tool 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 coupling means for a driving tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchet coupling means for a driving tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3694427