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. 08, 1977
Filed:
Feb. 26, 1976
William R Halliar, Whiting, IN (US);
Marvin Stark, Michigan City, IN (US);
Pullman Incorporated, Chicago, IL (US);
Abstract
A hatch latch mechanism for a railway hopper car having a longitudinally extending handle pivotally and slidingly linked to a hopper car roof which can be upwardly and rearwardly rotated to extend entrappingly across an outboard projection of a hatch cover holddown bar. The handle includes a bottom camming portion downwardly engageable with the outboard projection to compress the hatch cover gasket as the handle is rearwardly rotated to seal the hatch; thereafter, the handle is urged forward in slidingly upward engagement about the outboard projection of the holddown bar by the upward force of the compressed gasket against the hatch cover to insure automatic positive locking of the latch.