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:
Oct. 28, 2003
Filed:
Aug. 09, 2002
Christopher C. Gaydos, Maple Park, IL (US);
Miner Enterprises, Inc., Geneva, IL (US);
Abstract
A railroad hopper car gate assembly is disclosed. The gate assembly includes a frame configured for attachment to a hopper body of a railroad hopper car in material receiving relation relative to an outlet on the railroad car and defines at least one discharge opening. A door assembly is mounted on the frame for generally vertical sliding movements between open and closed positions relative to the discharge opening on said frame. A driver is operably coupled between the frame and the door assembly for selectively effecting sliding movements of the door assembly relative to said discharge opening between the open and closed positions. The driver develops a 2000 lb. opening force on the door assembly and a speed up to about 2.1 inches per second as the door assembly moves from said closed position to the open position and includes a direct current electric motor which draws less than about 30 amperes from a power source as the door assembly is moved from the closed position to the open position. A method for operating the gate assembly is also disclosed.