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. 07, 1978
Filed:
Jul. 19, 1976
Franklin P Adler, Michigan City, IN (US);
Pullman Incorporated, Chicago, IL (US);
Abstract
An elongated hatch opening in the roof of a hopper car includes a pair of hatch covers hinged on opposite sides of the hatch. A motor and operating mechanism supported at the end of the hatch reciprocates a pair of push-pull bars positioned within the hatch opening which in turn are connected to elevating rods connected to the underneath sides of the covers, the elevating rods extending inwardly and upwardly in the closed position and have a universal joint connection with the covers. Upon movement of the push-pull bars the elevating rods move the hatch covers to an upright open position. The elevating rods and the push-pull bars may be located internally or externally of the hatch covers, i.e., inwardly or outwardly of the hopper car body.