Tool head structure

Details Tool head structure Tool head structure

2008-11-05

2010-10-19

Meislin, D. S (Department: 3727)

Tools

Wrench, screwdriver, or driver therefor

Stud-removal and implacement

C081S441000, C081S460000, C007S165000

Reexamination Certificate

active

07814815

ABSTRACT:
A tool head structure is used to screw a regular screw or a damaged screw and comprises two cutting portions located at the center of the front portion thereof. Between the two cutting portions is formed a ridge line, and behind the two cutting portions are formed two concave flank portions, and the respective flank portions are correspondingly linked up with scraping grooves. By such arrangements, the tool head structure can solve the problems of easy slipping and being unable to remove the damaged screw.

REFERENCES:
patent: 3592555 (1971-07-01), Mackey, Sr.
patent: 4968193 (1990-11-01), Chaconas et al.
patent: 6742416 (2004-06-01), Bergamo
patent: 6868572 (2005-03-01), Newton
patent: 7000501 (2006-02-01), Chen
patent: 2004/0007095 (2004-01-01), Meng
patent: 2006/0037440 (2006-02-01), Kozak
patent: 2006/0056930 (2006-03-01), Rompel
patent: 2006/0150780 (2006-07-01), Chen
patent: 2008/0105092 (2008-05-01), Chen

Affiliated with

Also associated with

Rating

Tool head structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tool head structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool head structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4207258