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. 13, 1996
Filed:
Apr. 12, 1994
Applicant:
Inventor:
Walter E Surko, Jr, Southington, CT (US);
Assignee:
International Security Products, Inc., Southington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
292 92 ; 292D / ; 292D / ; 292D / ; 29234118 ; 292196 ;
Abstract
A locking device, suitable for walk-in freezer doors, automatically locks when the door is closed, allows the door to be pulled open from the outside only when a proper key is inserted and rotated 90.degree., and always allows the door to be opened from the inside by pushing on a manual actuator. The locking device includes a strike mounted on the door frame, an outside plate assembly including a rigid handle and lock cylinder, and an inside plate assembly including a bracket supporting a spring loaded bolt, an enabling mechanism in the form of a collapsible linkage coupled to the bolt, a manual actuator, and a cover.