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:
Aug. 26, 2003
Filed:
Sep. 24, 2001
Dennis L. Mortenson, Anderson, SC (US);
Neil E. Russell, Bloomfield Hills, MI (US);
Joseph E. Foster, Sterling Heights, MI (US);
Ross Operating Valve Company, Troy, MI (US);
Abstract
A pneumatic control system for a freight car having a brake pipe, auxiliary and emergency reservoirs normally charged with pressurized fluid from the brake pipe, a fluid pressure activated brake cylinder device and an exhaust including an electronic controller, at least one pressure sensor, an electrically operated supply valve controlled by the electronic controller selectively communicating the brake cylinder with one of the reservoirs to perform a brake application, an exhaust valve selectively communicating the brake cylinder with the atmosphere thereby performing a brake release function, and an electronically operated exhaust latching valve controlled by the electronic controller to selectively signal the exhaust valve to connect the brake cylinder to the exhaust.