Cutting by use of rotating axially moving tool – Machine including plural tools – Plural – simultaneously operational tools
Reexamination Certificate
1999-09-17
2001-06-12
Bishop, Steven C. (Department: 3722)
Cutting by use of rotating axially moving tool
Machine including plural tools
Plural, simultaneously operational tools
C408S053000, C408S234000, C408S24100G
Reexamination Certificate
active
06244793
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a drilling apparatus and, more particularly, to an attachment for a drilling machine that allows the simultaneous boring of the plurality of holes, in particular a plurality of holes needed to mount a hinge.
2. Description of the Related Art
Most hardware components require that a plurality of holes be pre-drilled to accommodate parts of the hardware, dowels, mounting screws and the like. Because precise relative placement of these bores is required for the hardware to function properly, a variety of drill jigs and templates have been created to aid the home hobbyist, in particular. While drill jigs are faster and easier to use than marking the workpiece with a template, the drilling process remains time consuming and the sequential drilling of holes risks shifting of the template or jig and hence improper positioning of the various bores.
SUMMARY OF THE INVENTION
The present invention provides an attachment that allows a drilling machine to simultaneously bore the plurality of holes required for mounting a hardware component to a workpiece. In an exemplary embodiment, the attachment is adapted to simultaneously bore, in a desired disposition, all three holes needed to mount European style hinges in a single stroke. The hinge boring attachment includes a drilling head, which attaches to the chuck of the drilling machine. In a preferred embodiment, the attachment is adapted for mounting to a drill press. Thus, a stabilizing arm is further preferably provided to clamp to the support post of the drill press and roll smoothly along the support post during the drilling operation.
REFERENCES:
patent: 3389729 (1968-06-01), Macala
patent: 4290717 (1981-09-01), Aslen
patent: 4552494 (1985-11-01), Wix
patent: 4609310 (1986-09-01), Blum
patent: 5085543 (1992-02-01), Click
patent: 5217331 (1993-06-01), Ericksen
patent: 5419662 (1995-05-01), Ericksen
patent: 568432 (1945-04-01), None
patent: 571794 (1945-09-01), None
Brutsman Paul
McCool Mark K.
Sanger Jay L.
Wirth, Jr. John
Bishop Steven C.
Nixon & Vanderhye PC
Woodworker's Supply Inc.
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