Connecting shaft device for screws

Details Connecting shaft device for screws Connecting shaft device for screws

2005-08-23

2005-08-23

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

C081S125000

Reexamination Certificate

active

06931967

ABSTRACT:
The present invention of a connecting shaft device for screws mainly comprises a sliding sleeve having a magnetic element disposed on the inner circumference of the front end, the sliding sleeve is then sleeved on a connecting shaft and can slide on it, the sliding distance is controlled by an elastic element, a slant groove and a groove, the structure is simple and can temporarily position a screw, hold the screw in locking position and at the same time can also control the depth of locking.

REFERENCES:
patent: 2671484 (1954-03-01), Clark
patent: 5724873 (1998-03-01), Hillinger
patent: 5996452 (1999-12-01), Chiang
patent: 6154108 (2000-11-01), Huang
patent: 6363819 (2002-04-01), Li
patent: 6497166 (2002-12-01), Fleckenstein
patent: 6511268 (2003-01-01), Vasudeva et al.
patent: 6530299 (2003-03-01), Liu
patent: 6666114 (2003-12-01), Lin
patent: 4243650 (1994-06-01), None

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