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:
Aug. 19, 1997
Filed:
Aug. 29, 1995
Applicant:
Inventors:
David C Janssen, Whitefish Bay, WI (US);
Eric J Neusen, Brown Deer, WI (US);
Assignee:
Strattec Security Corp., Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335284 ; 70275 ;
Abstract
A device and method are provided for magnetizing a control magnet housed in a cylinder of an ignition lock. The cylinder is placed in a cylinder receipt member and orientated therein so that the magnet is aligned in a predetermined position. The control magnet is then saturated with a first saturating magnetic charge. The control magnet is then calibrated to a predetermined magnetic level by one or more calibrating magnetic charges, opposite in polarity to the saturating magnetic charge. The control magnet may then be checked for predetermined magnetic characteristics.