Spring-loaded magnetic driver and method of assembly thereof

Details Spring-loaded magnetic driver and method of assembly thereof Spring-loaded magnetic driver and method of assembly thereof

1989-06-23

1990-04-24

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

811241, 76114, 76119, B25B 1302

Patent

active

049190202

ABSTRACT:
A tool for rotatably driving a fastening member includes a hollow tubular shank closed at one end by a handle fixed thereto and having coupled to the other end thereof in communication therewith a socket for receiving an associated rotatable fastening member. A helical compression spring is disposed coaxially within the shank, having the inner end thereof embedded in a body of adhesive material and having the outer end thereof fixed to the keeper of a magnet disposed for magnetic engagement with a fastening member received in the socket. In assembly, the adhesive material is inserted in the shank in a fluid state, the inner end of the spring is immersed in the fluid, and the adhesive is then cured to a solid state.

REFERENCES:
patent: 2671369 (1954-03-01), Clark
patent: 2677294 (1954-05-01), Clark
patent: 2834241 (1958-05-01), Chowning
patent: 2899996 (1959-08-01), Stockman
patent: 3207010 (1965-09-01), Wendling
patent: 4418732 (1983-12-01), Kolonia

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