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:
Nov. 02, 1999
Filed:
Apr. 20, 1998
Seiki Maruta, Kobe, JP;
Shigeaki Doto, Kobe, JP;
Nabco, Ltd., Nichi-Ku Kobe, JP;
Abstract
A brake monitoring device for railroad cars is provided with a first comparison device which compares the electrical brake power equivalent signal with a first standard value, judges whether or not electrical brake power is generated and closes the locomotive brake deficit check circuit with an interlock device when such electrical brake power equivalent signal is smaller than such first standard value and which opens the locomotive brake deficit check circuit when it is larger. Such brake monitoring device also includes a second comparison device which compares the electrical brake power equivalent signal with a second standard value which judges whether or not electrical brake power is supplied to the brake power of the trailer car. Such device closes the trailer car brake deficit check circuit with such interlock device when the electrical brake power equivalent signal is smaller than the second standard value and opens the trailer car brake deficit check circuit when it is larger. Thus, in cases where brake power is not supplied to the trailer car, even if brake power is generated, it is still possible to greatly improve the safety and simplicity of the delayed-action control brake device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile