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. 05, 2007
Filed:
May. 27, 2004
Daniel Robert Gagnon, Harrodsburg, KY (US);
Tommy Otis Lowe, Lexington, KY (US);
David Kyle Murray, Lexington, KY (US);
Daniel Robert Gagnon, Harrodsburg, KY (US);
Tommy Otis Lowe, Lexington, KY (US);
David Kyle Murray, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A power supply keying method for use with an electrical apparatus includes defining a plurality of power supply classes; associating with the plurality of power supply classes a plurality of power supplies, each of the plurality of power supplies including a power supply housing having a unique keying arrangement corresponding to one power supply class of the plurality of power supply classes; and providing in the electrical apparatus a power supply receptacle for receiving at least one power supply of the plurality of power supplies, the unique keying arrangement of the power supply housing in conjunction with the power supply receptacle permitting reception of a particular power supply of the plurality of power supplies into the power supply receptacle only if the power supply class associated with the particular power supply has power supply electrical characteristics that satisfy electrical power requirements of the electrical apparatus.