Brake system having boosted hydraulic accumulator

Brakes – Operators – Fluid pressure

Reexamination Certificate

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Details

C188S360000, C074S512000

Reexamination Certificate

active

06942075

ABSTRACT:
A hydraulic brake system includes a hydraulic accumulator that stores much of the energy generated upon brake pedal depression. The stored energy can be used to maintain the brakes in their fully engaged state and to help return an applied brake pedal to its released position, in which case return fluid flow to the master cylinder is damped to avoid undesirable severe kickback of the brake pedal. A booster is provided to automatically boost the energy storage capacity of the accumulator during normal brake and hold cycles in order to provide sufficient energy accumulation to compensate for relatively severe pressure drops occurring, e.g., during prolonged periods of storage at extremely low temperatures. The booster may comprise an indexing arm that is acted upon by the system's brake pedal to selectively move a variable thickness spacer on the indexing arm into and out of engagement with the accumulator.

REFERENCES:
patent: 2816633 (1957-12-01), Schumann
patent: 3869027 (1975-03-01), Chlebowski
patent: 4076093 (1978-02-01), Mizuno
patent: 4278143 (1981-07-01), Nagai
patent: 4301901 (1981-11-01), Jensen
patent: 4310064 (1982-01-01), Kazarian, Jr.
patent: 4315441 (1982-02-01), Fukuda
patent: 4841798 (1989-06-01), Porter et al.
patent: 4867289 (1989-09-01), Wooters
patent: 5020643 (1991-06-01), Redenbarger
patent: 5058462 (1991-10-01), Killiany et al.
patent: 5309786 (1994-05-01), Pare et al.
patent: 5588335 (1996-12-01), Strait
patent: 5785156 (1998-07-01), Warwick et al.
patent: 5890545 (1999-04-01), Smith et al.
patent: 6223865 (2001-05-01), Lang et al.
patent: 6457568 (2002-10-01), Lang et al.
patent: 6648105 (2003-11-01), Lang et al.
patent: 6662915 (2003-12-01), Bigsby
patent: 6796407 (2004-09-01), Buckley et al.
patent: 2001/0040074 (2001-11-01), Lang et al.
patent: 2002/0189909 (2002-12-01), Buckley et al.
patent: 2003/0010581 (2003-01-01), Lang et al.
patent: 2003/0106754 (2003-06-01), Buckley et al.
patent: 2003/0164057 (2003-09-01), Buckley et al.
patent: 00/51866 (2000-08-01), None

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