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:
Nov. 03, 1998
Filed:
Apr. 09, 1997
Applicant:
Inventors:
Michael J Rench, Wyandotte, MI (US);
Eric M Wrobley, Athens, GA (US);
Assignee:
Thrall Car Manufacturing Company, Chicago Heights, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
105355 ; 105378 ; 292 33 ; 292 40 ; 2961468 ;
Abstract
An auto rack car has an improved door locking mechanism for heightened security in auto rack car doors which rely on upper and lower lock assemblies for security. The improved locking mechanism is lightweight and inexpensive and is adaptable for retrofit installation to lock assemblies which are currently in use on auto rack cars. The locking mechanism thus provides a commercially viable means to prevent unauthorized intrusions into the car involving unlocking of an upper lock assembly and subsequent flexure of the door while a lower lock assembly remains locked.