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:
May. 23, 2006
Filed:
Jun. 17, 2003
Anthony Wong, Franklin, MA (US);
Anthony Wong, Franklin, MA (US);
Cosco Management, Inc., Wilmington, DE (US);
Abstract
A door lock is provided for use with a door handle having a lever movable about a shaft extending perpendicularly to the lever and connected to a latch mechanism which controls the opening and closing of a door. The lock includes a housing configured to be coupled to the door handle and a blocking member movable relative to the housing between a lever-blocking position blocking movement of the lever to prevent opening of the door and a lever-releasing position permitting movement of the lever to permit opening of the door. From the lever-blocking position, the blocking member is moved to the lever-releasing position by first pushing the blocking member inwardly against a spring to free the blocking member, and then moving the blocking member relative to the housing.