Screwdriver used for screw tightener and screw suitably tightene

Details Screwdriver used for screw tightener and screw suitably tightene Screwdriver used for screw tightener and screw suitably tightene

1999-03-12

2000-12-26

Gerrity, Stephen F.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81436, B25B 2300

Patent

active

061641715

ABSTRACT:
A screwdriver used for a screw tightener includes at its tip portion a blade having a plurality of flat plate portions to be meshed in a recess formed in a head of a screw. In this screwdriver, each of the flat plate portions has at its tip portion an outer peripheral surface which extends in such a manner as to be converged in the direction toward the tip portion of the screwdriver. The outer peripheral surface of the flat plate portion is formed into an angled shape having a ridge line portion extending in the direction toward the tip portion of the screwdriver.

REFERENCES:
patent: 2815054 (1957-12-01), Cummaro
patent: 2847894 (1958-08-01), Smith et al.
patent: 2859782 (1958-11-01), Cummaro
patent: 3108623 (1963-10-01), Muenchinger
patent: 3282145 (1966-11-01), Prescott
Cross Recesses for Screws, 1985, pp. 321-239.

Affiliated with

Also associated with

Rating

Screwdriver used for screw tightener and screw suitably tightene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Screwdriver used for screw tightener and screw suitably tightene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screwdriver used for screw tightener and screw suitably tightene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-983553