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:
Sep. 08, 2015
Filed:
Oct. 30, 2009
Sajil J. Mathachan, Karnataka, IN;
Sajil J. Mathachan, Karnataka, IN;
Schlage Lock Company LLC, Indianapolis, IN (US);
Abstract
A key and a lock cylinder () combination including a key and a lock cylinder having a housing and a plug. The key () includes a blade that has a first pin groove () on a first lateral side defining a first pin surface, and a second pin groove () on the first lateral side defining—a second pin surface. The lock cylinder also includes an auxiliary pin () with a first projection () defining a first engagement surface engageable by the first pin surface when the key is inserted into the key slot to move the auxiliary pin to a withdrawn position to allow rotation of the plug relative to the housing, and a second projection () defining a second engagement surface engageable by the second pin surface when the key is removed from the key slot to move the auxiliary pin to a projecting position to prevent rotation of the plug relative to the housing.