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:
Apr. 09, 1985
Filed:
Jun. 30, 1982
Applicant:
Inventor:
Quentin H Young, San Antonio, TX (US);
Assignee:
Southern Steel Company, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ; E05B / ; E05C / ; E05C / ;
U.S. Cl.
CPC ...
70129 ; 70279 ; 70280 ; 292140 ; 292144 ; 292170 ;
Abstract
A modular lock unit has a lock solenoid and an unlock solenoid connected to opposite ends of a bolt cam slide for operating a horizontally reciprocal bolt. A centered circuit automatically locks the door when it is closed and automatically retracts the bolt in the event that any obstruction is provided in the strike in the door so as to preclude damage to the solenoid employed for extending the bolt. A time delay relay in the circuit terminates power to the lock solenoid after it has been actuated for 1.5 seconds so as to preclude solenoid damage if the bolt is blocked.