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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||303/3 ; 192/4A ; 303/15 ; 303/71|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 13 인용 특허 : 3|
A vehicle brake system for operating a spring applied, fluid pressure released brake. In order to assure that the brake is fully released before the vehicle is operated, the system requires the operator to perform two operations. He must move a manually operated hydraulic valve to the brake release position and in addition must close a normally open, momentary contact switch which actuates a second solenoid operated valve in series with the first valve to the brake release position. When pressure has built up in the brake actuator sufficiently to assure ...
A vehicle brake system having a spring applied fluid pressure released actuator, a source supplying pressurized fluid to said actuator for brake release, and a two position valve in the fluid circuit between said source and said actuator having a brake applied position and a brake release position, comprising a solenoid operated valve in said fluid circuit between said source and said two position valve maintaining the circuit normally closed, a momentary contact switch for closing an electrical circuit for energizing said solenoid and moving said soleno...