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:
Feb. 01, 2011
Filed:
Jun. 03, 2010
Steven Armstrong, San Juan Capistrano, CA (US);
Gerald B. Chong, Rowland Heights, CA (US);
Steven Armstrong, San Juan Capistrano, CA (US);
Gerald B. Chong, Rowland Heights, CA (US);
Newfrey, LLC, Newark, DE (US);
Abstract
A lock cylinder having a keyway includes a first plurality of guide channels. A plurality of cup-shaped pins is movably disposed within the first plurality of guide channels. Each cup-shaped pin of the plurality of cup-shaped pins extends across the keyway. Each cup-shaped pin of the plurality of cup-shaped pins has an engagement protrusion. The first plurality of guide channels conform to the shape of the plurality of cup-shaped pins to allow movement of the plurality of cup-shaped pins in a first direction while restraining movement transverse to the first direction. A plurality of biasing springs is positioned to bias the plurality of cup-shaped pins in a direction toward the keyway. A plurality of racks is movably disposed in a second plurality of guide channels. Each rack of the plurality of racks has at least one engagement groove to selectively receive the engagement protrusion of a respective cup-shaped pin.