Screw feeding device in continuous screw driving tool

Details Screw feeding device in continuous screw driving tool Screw feeding device in continuous screw driving tool

2011-08-09

2011-08-09

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

Reexamination Certificate

active

07992469

ABSTRACT:
A screw feeding device includes a feeder box, a stopper member, an operating member, and a resilient member. An adjustment slot is formed in the stopper member, and has two closed ends and alternate large-diameter and small-diameter slot portions. An operating protrusion of the operating member has a large-diameter protrusion portion and a small-diameter protrusion portion. The operating protrusion is biased by the resilient member away from the feeder box. The operating member is movable relative to the feeder box between a first position whereat the large-diameter protrusion portion is disposed within a selected one of the large-diameter slot portions, and a second position whereat the small-diameter protrusion portion is disposed in the adjustment slot.

REFERENCES:
patent: 5988025 (1999-11-01), Sasaki et al.
patent: 7454996 (2008-11-01), Hsu
patent: 2004/0112183 (2004-06-01), Huang et al.
patent: 2009/0314143 (2009-12-01), Chen

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