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公开(公告)号:US3576568A
公开(公告)日:1971-04-27
申请号:US71139668
申请日:1968-03-07
Applicant: DBA SA
Inventor: THIRION RENE
CPC classification number: B60T17/226 , H01H35/38
Abstract: A combination stop warning switch and brake system failure indicator switch is disclosed for use on automotive vehicles having split braking systems. When the brakes function normally, the switch actuates the vehicle''s stop warning system when the vehicle''s brakes are applied. However, if a malfunction causes the pressure in one of the brake systems to exceed the pressure in the other system by more than a predetermined amount during a brake application, the switch actuates both the stop warning system and a warning device in the vehicle''s operator''s compartment.