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:
Jul. 12, 1977
Filed:
Jun. 28, 1976
Yukichi Sekiguchi, Yono, JA;
Sanwa Seiki Mfg. Co. Ltd., , JA;
Abstract
An antiskid device for air brakes comprising a modulator mounted in a pressurized air line connecting a brake valve to brake actuators, and a signal producing means adapted to produce a throttling electric signal and a pressure reducing electric signal whereby the speed of the wheels can be controlled and the slip rate of the wheels can be maintained at an approximate optimum level of 0.2. The modulator comprises a first valve which can move between an open position in which it allows pressurized air from the brake valve to pass freely therethrough and a discharge position in which it causes the pressurized air from the brake actuators to be discharged through an outlet port, a second valve connected in series with the first valve and capable of moving between an open position in which it allows the pressurized air to pass freely therethrough and a throttling position in which it allows the pressurized air to pass therethrough in a reduced quantity, a first valve operating means for operating the first valve and a second valve operating means for operating the second valve.