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:
Dec. 19, 1989
Filed:
Sep. 27, 1988
Applicant:
Inventor:
Gary E Lavelle, Avon, CT (US);
Assignee:
Emhart Industries, Inc., Towson, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70143 ; 70272 ;
Abstract
An electronic lock includes a bolt having a fully extended position when a door is closed and a partially extended position when the door is open. The lockset is selectively placed in a locked state when the bolt is in its fully extended position. A switch is responsive to the position of the bolt and has a first operating position when the bolt is fully extended and a second operating position when the bolt is partially extended. A processor is responsive to the switch for preventing the selective locking of the bolt when the bolt is partially extended.