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:
Jul. 07, 1987
Filed:
Aug. 23, 1985
William R Baker, Lawrenceville, GA (US);
Walter J Marulic, Dunwoody, GA (US);
James C Robertson, Lawrenceville, GA (US);
Thrall Car Manufacturing Company, Chicago Heights, IL (US);
Abstract
A railroad car for transporting vehicles such as automobiles and trucks has a pair of door assemblies which close each end of the railroad car. The lower end of the door assemblies are guided in a track and the track has vertically retractable sections located where the vehicle tires roll so as to provide added load height when the car ends are open and vehicles are being loaded or unloaded. An embodiment with a pivotal, counterweighted Z-shaped member upon which the retractable track section is mounted is disclosed along with an embodiment utilizing a vertically displaceable tubular member and a coil spring.