Driving tool for tamper resistant screw

Details Driving tool for tamper resistant screw Driving tool for tamper resistant screw

1982-06-17

1984-11-06

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81 90C, B25B 2300

Patent

active

044805144

ABSTRACT:
A driving tool for installing and removing tamper resistant screws having conical heads provided with three equiangularly, circumferentially spaced slots extending longitudinally along the conical head. The tool includes a bit end defined by three tangs separated by a central conical recess for receiving the conical head of the screw. The side walls of the tangs adjacent the bottom end are flat, parallel sections tapering away from the bottom end toward the roots of the tangs for providing effectively large bearing surfaces.

REFERENCES:
patent: 1281438 (1918-10-01), Tuttle
patent: 2180633 (1939-11-01), Holt
patent: 2459610 (1949-01-01), Zadina
patent: 2550775 (1951-05-01), Clark
patent: 2770991 (1956-11-01), Myers
patent: 3930428 (1976-01-01), Hale
patent: 4356839 (1982-11-01), Voipovich

Affiliated with

Also associated with

Rating

Driving tool for tamper resistant screw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driving tool for tamper resistant screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving tool for tamper resistant screw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1037228