The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 19, 2002

Filed:

Aug. 23, 2000
Applicant:
Inventors:

Craig A. Sommerfeld, Kelley, IA (US);

Todd Sommerfeld, Ankeny, IA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 4/514 ; B23B 4/902 ;
U.S. Cl.
CPC ...
B23B 4/514 ; B23B 4/902 ;
Abstract

An adjustable holding device comprising a base and a guide removably secured to the base is disclosed. In one embodiment, more than two guide channels are angularly disposed within the guide to guide a drill bit, wherein the more than two guide channels provide multiple two-hole drilling combinations. In another embodiment, a step block is used to elevate the workpiece, thus allowing thinner workpieces to be accurately drilled. In yet another embodiment, a riser block is used to elevate and move the guide laterally backwards to allow thicker workpieces to be accurately drilled. In yet another embodiment, support wings can be used not only to support a large workpiece, but can also be used as a pre-drill guide for depth collar positioning along a drill bit.


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