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:
Dec. 23, 2003
Filed:
Aug. 28, 2002
Robert Gayfer, Watertown, NY (US);
Michael Spadaccini, Dexter, NY (US);
New York Air Brake Corporation, Watertown, NY (US);
Abstract
An empty-load system including a first housing having brake cylinder, control valve, equalization volume reservoir and pilot ports. The first housing also has a ratio means for controlling the connection between ports and has a piston responsive to a pilot pressure to operate the ratio means. The system also includes a second housing having a brake cylinder port and a pilot port connected, respectively, to the brake cylinder port and the pilot port of the first housing. The second housing also has a sensor means, having a sensor piston, for sensing the load of a railcar and has a sensor valve for connecting the brake cylinder port to the pilot port for a first position of the sensor piston.