Title: Skid control system embodying fail safe bypass

Abstract: A hydraulically operated automotive skid control system. The system includes a regulator that regulates pump pressure that operates on the modulator in response to variations in braking system pressure. A combined bypass and isolation valve is incorporated for providing a direct source of actuating fluid in the event of failure of the pump to maintain adequate pressure.

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Inventors: Atkins, Thomas M. (Ann Arbor, MI, US)

Application Number: 565556
Filing Date: 1975-04-07
Publication_date: 1976-09-21
Assignee: Kelsey-Hayes Company (Romulus, MI)
Primary Class(es): 303/115.4 188/181A, 303/10, 303/122.14
Other Classes:
US Patent Ref:

3556615	Jan, 1971	Stelzer	303/21.
3602554	Aug, 1971	Ichimura et al.	303/21.
3610701	Oct, 1971	Riordan	303/21.
3672731	Jun, 1972	Koivunen	303/21.
3810680	May, 1974	Schenk	303/21.
3813130	May, 1974	Inada	303/21.

Other Refs:
Primary Examiner: Halvosa, George E. A.
Assistant Examiner: Butler, Douglas C.
Attorney: Harness, Dickey & Pierce