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. 20, 1977
Filed:
Apr. 04, 1977
Applicant:
Inventor:
Sigurd M Moberg, Etlan, VA (US);
Assignee:
E. J. Brooks Company, Newark, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
70 34 ; 70386 ;
Abstract
A lock of the type having an internal plunger with a stem for being gripped by a tool to pull the stem axially to release locking means, the stem being biased to the locking position by a coil spring so dimensioned that when the spring is fully compressed with the coils touching each other, the pin just reaches the unlocking position. Hence if an attempt is made to open the lock by inserting a bent wire or the like into a spring coil and pulling to compress the spring, the pin will not be able to move to the unlocking position.