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:
May. 16, 2000
Filed:
Apr. 13, 1998
David W Daugherty, Jr, Plainfield, IL (US);
Michael L Ring, Crown Point, IN (US);
Harry E Weber, Brownsville, PA (US);
Westinghouse Air Brake Company, Wilmerding, PA (US);
Abstract
A brake valve system for a pair of railroad freight cars mechanically connected together in a substantially semi-permanent manner. Each of such pair of freight cars has a brake pipe pneumatically connected together. The brake valve system comprises a brake control valve disposed on a first one of such pair of cars and is pneumatically connected to the brake pipe and to a reservoir disposed on the first one of the pair for applying and releasing brakes disposed on both of the pair of freight cars. A vent valve is disposed on a second one of the freight cars and is pneumatically connected to the brake pipe disposed on the second one of the pair of cars for emergency venting of air from the brake pipes of the pair of cars for emergency application of the brakes of the pair of cars.