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:
May. 01, 1990
Filed:
Aug. 31, 1989
Applicant:
Inventor:
Mell R Thoman, Omaha, NE (US);
Assignee:
Railcar Specialties, Inc., Alsip, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D / ;
U.S. Cl.
CPC ...
105378 ; 49220 ;
Abstract
A modular add-on unit provides (14) anti-spin protection for a gear-operated locking system (13) of plug-in railway freight car doors (12). The unit has an input shaft (26) with a handle (36) attached thereto, and an output shaft (42) with a recess (40) therein configured for direct engagement with industry standard door shafts. An anti-spin mechanism (24) disposed within a housing (17) couples the two shafts together, and the housing is attached to the outer surface (42) of the door, preferably by welding.