Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2008-01-17
2010-10-19
Wilson, Lee D (Department: 3727)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S244000, C029S275000, C029S271000, C029S272000, C227S147000, C279S145000
Reexamination Certificate
active
07814631
ABSTRACT:
Objects of the present invention provide an attachment for power tools that places and sets expansion anchors. One embodiment of the present invention is directed to a new and improved attachment apparatus for a rotary-hammer type drill, the attachment including a first anchor setting end, a second attachment end, and a handle portion connecting the setting end to the attachment end. The attachment apparatus can be efficiently and easily mounted to the rotary-hammer type drill to simplify the installation of expansion anchors.
REFERENCES:
patent: 776393 (1904-11-01), Harriman et al.
patent: 2641379 (1953-06-01), Barbaro
patent: 4676424 (1987-06-01), Meador et al.
patent: 4763548 (1988-08-01), Leibinger
patent: 4890779 (1990-01-01), Giannuzzi
patent: 4899431 (1990-02-01), Borntrager
patent: 5533660 (1996-07-01), Meier
patent: 6446318 (2002-09-01), Foose
patent: 6915936 (2005-07-01), Estes
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