Fixture for drilling pocket holes in workpieces of different...

Details Fixture for drilling pocket holes in workpieces of different... Fixture for drilling pocket holes in workpieces of different...

2006-11-28

2009-02-03

Howell, Daniel W (Department: 3726)

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Adjustable, tool-guiding jig

C408S103000

Reexamination Certificate

active

07484914

ABSTRACT:
A fixture for drilling a pocket hole in a working face of workpieces of different thicknesses is a U-shaped member having a guide leg and a clamp leg parallel to each other and joined together at a bottom end of each by a transverse base leg. An angled guide channel is in the guide leg that has an entrance for a drill bit on an exterior part of the guide leg and an exit on an interior face which opposes the workpiece working face. A plurality of horizontal elongated ribs are spaced vertically apart on the guide leg interior below the guide channel exit and there is a shelf having a face on which a second face of the workpiece that is transverse to the working face is to rest and that has an edge with a plurality of horizontal vertically spaced ribs to inter-engage with the ribs on said guide leg. A screw extends outwardly from the shelf to extend through a slot in the guide leg and a nut fastens the screw against the guide leg to hold opposing ribs of the guide leg and shelf inter-engaged. Selection of the point of inter-engagement of the ribs sets the height of the shelf support for the workpiece relative to the drill guide channel exit.

REFERENCES:
patent: 2838966 (1958-06-01), Campbell
patent: 3788759 (1974-01-01), Grunert
patent: 5676500 (1997-10-01), Sommerfeld
patent: 6254320 (2001-07-01), Weinstein et al.
patent: 6726411 (2004-04-01), Sommerfeld et al.
patent: 7101123 (2006-09-01), Weinstein et al.
patent: 2005/0089381 (2005-04-01), Liu et al.
patent: 2006/0228180 (2006-10-01), Sommerfeld et al.

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