Plastic wrench with metal insert

Details Plastic wrench with metal insert Plastic wrench with metal insert

1990-02-28

1991-11-05

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Jaw faces

81185, B25B 1300

Patent

active

050623281

ABSTRACT:
A plastic wrench consitsint of a handle (2) and a gripping head (3,4), having a polygonal opening (5,6) in which there is embedded an open metal insert (10,11), likewise polygonal, and the walls of which form gripping jaws, wherein the walls (12,13,14,15) of the insert (10,11) forming the jaw are parallel and protrude slightly from the lateral faces (16-19) of the openings (5,6) of each gripping head (3,4), whereim the metal insert (10,11) is made from a hard, flexible and resilient metal having a coefficient of hardness of between 45 and 50 HRC, and wherein, in the region of the jaws (12-15), the thickness E2 of the insert (10,11) is between 0.5 and 0.7 times the thickness E1 of the gripping head (3,4).

REFERENCES:
patent: 1314044 (1919-08-01), Buker
patent: 2898793 (1959-08-01), Fedeson
patent: 2909954 (1959-10-01), Rhoads
patent: 4864898 (1989-09-01), Tricinella

Affiliated with

Also associated with

Rating

Plastic wrench with metal insert does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-492402