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.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Jul. 31, 1997
Applicant:
Inventors:
John S Titus, Prior Lake, MN (US);
William Laughlin, Minnetonka, MN (US);
Assignee:
Machine Magic-LLC, Minnetonka, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23C / ;
U.S. Cl.
CPC ...
409 81 ; 76110 ; 250202 ; 356376 ; 36447403 ; 409 80 ; 409 83 ; 409 84 ; 409132 ;
Abstract
In a method and apparatus for duplicating an original key, the keyway and keycode of the original key are measured and duplicated in a preform. The preform used in the duplication process need not include any keyway or keycode prior to the duplication process and, therefore, a single type of preform may be used in generating duplicates of many different types of keys. The apparatus may be automated to take the measurements of the original key and to cut the duplicate key, thus reducing the possibility of producing a nonfunctional duplicate.