Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate
2008-11-24
2010-12-28
Howell, Daniel W (Department: 3726)
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Having tool-opposing, work-engaging surface
C408S090000, C408S091000, C269S057000, C269S063000, C269S081000, C269S082000
Reexamination Certificate
active
07857556
ABSTRACT:
A drill press has a bit, a base and a support shaft with a lower end supported by the base and an upper end supporting the housing. A lower plate with a connector coupled between the lower plate and the support shaft varies the angular attitude of lower plate with respect to the bit. An upper plate with threaded apertures, recesses, blocks and bolts secures the upper plate in preselected planar positions with respect to the lower plate. Aligned central apertures in the plates with a pivot pin provide a plurality of preselected rotational orientations of the upper plate with respect to the lower plate.
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