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:
Mar. 23, 2004
Filed:
Jun. 29, 2000
Applicant:
Inventors:
Michael K. Burke, Wheaton, IL (US);
John D. Anderson, Aurora, IL (US);
Walter J. Peach, Aurora, IL (US);
Assignee:
ZefTek, Inc., Montgomery, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61D 3/00 ; E05C 1/02 ; F16C 3/320 ;
U.S. Cl.
CPC ...
B61D 3/00 ; E05C 1/02 ; F16C 3/320 ;
Abstract
A greaseless door lock for doors on railroad cars which eliminates the need to lubricate the door locks. The greaseless door lock includes a C-shaped bracket having a side wall and spaced apart end walls attached to the side wall wherein the end walls include aligned aperatures for slidably receiving a locking pin. The greaseless door lock includes at least one bushing mounted in each aperature to prevent the locking pin from engaging the end walls. Two semi-clyindrical bushings or one cylindrical bushing may be mounted in each aperature.