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:
Feb. 25, 2003
Filed:
Sep. 08, 2000
Stanley M. Herzog, St. Joseph, MO (US);
Ronald A. Schmitz, Clarksdale, MO (US);
Ivan Eugene Bounds, St. Joseph, MO (US);
Randy L. Poggemiller, Easton, MO (US);
Stephen L. Bedingfield, Savannah, MO (US);
Patrick R. Harris, Lenexa, KS (US);
Daniel B. Laughlin, Kansas City, MO (US);
Herzog Contracting Corp., St. Joseph, MO (US);
Abstract
A GPS controlled multiple source material application or ballast spreading system includes tracking the position of a plurality of ballast hopper cars using GPS derived coordinates and controlling the opening of multiple ballast doors to spread ballast on desired sections of track for railroad maintenance. The process involves tracking the current hopper loads, the opened or closed state of the ballast doors, and the concurrent amount of ballast which has been spread on the desired track sections.