Drill guide

Details Drill guide Drill guide

2009-03-12

2010-11-09

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S525110, C029S525010, C408S11500B, C408S0010BD, C403S319000

Reexamination Certificate

active

07827669

ABSTRACT:
A method of joining together a first and second workpieces. The method comprises; drilling a first hole at least partially through the first workpiece with a drill bit oriented in a first direction; drilling a second hole at least partially through the first workpiece with a drill bit oriented in a second direction which is not parallel with the first direction, the drill bit passing through the first workpiece into a side of the first hole; inserting a fastener through the second workpiece and into the first hole; inserting an anchor into the first hole via the second hole; and securing the fastener within the first hole with the anchor. The invention also relates to a drill guide for use in such a method.The drill bit is aligned by placing a target magnet in the first hole without completely filling it; placing a drill guide with a guide magnet or magnetic field sensor next to the first workpiece; adjusting the position of the drill guide until the guide magnet or magnetic field sensor indicates that the drill guide is aligned with the target magnet; and drilling the second hole by passing the drill bit through the drill guide and at least partially through the first workpiece, the drill bit entering the side of the first hole at a location where the first hole is not filled by the target magnet.

REFERENCES:
patent: 5415502 (1995-05-01), Dahlin
patent: 5707375 (1998-01-01), Durham et al.
patent: 7003860 (2006-02-01), Bloch et al.
patent: 672036 (1952-05-01), None
patent: 1-121113 (1989-05-01), None
UK Search Report for Great Britain Application No. 0807390.0, dated Aug. 14, 2008.

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