Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2007-09-11
2007-09-11
Meislin, D. S. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S436000
Reexamination Certificate
active
11230622
ABSTRACT:
A telescopic driving tool comprises a handle having an axial hole at a front end thereof for receiving an engaging portion; an interior of an engaging portion being formed with a receiving space; a periphery of the engaging portion being formed with at least one slit; an inner periphery of the engaging portion being formed with an inner thread; a driving rod; one end of the driving rod having an opener head for driving a screw and another end of the driving rod being installed with a thread portion; at least one stopper being installed below the thread portion; the driving rod can be inserted into the receiving space of the engaging portion and the stoppers being received within the two slits of the engaging portion; and a tightening unit being combinable with a front end of the engaging portion for tightly engaging the engaging portion.
REFERENCES:
patent: 3343434 (1967-09-01), Schroeder
patent: 4102375 (1978-07-01), Rossini
patent: 4960015 (1990-10-01), Mathews
patent: 5285702 (1994-02-01), Hillinger
patent: 6155144 (2000-12-01), Lin
patent: 7146885 (2006-12-01), Hwang et al.
patent: 7174812 (2007-02-01), Chiang
patent: 2006/0048613 (2006-03-01), Abel et al.
patent: 2006/0137495 (2006-06-01), Hwang et al.
patent: 2006/0191384 (2006-08-01), Dougherty
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