Boots – shoes – and leggings
Patent
1987-11-13
1989-05-30
Laroche, Eugene R.
Boots, shoes, and leggings
36442601, 303100, 303110, 303115, 180197, B60T 858
Patent
active
048356956
ABSTRACT:
Vehicle wheel slip is controlled by an add-on brake pressure modulator that may function in addition to limit the brake pressure applied to the vehicle wheels during anti-lock braking. A piston is moved in a cylinder to regulate the braking pressure. During non-operating conditions of the modulator the piston is moved to provide minimum cylinder volume to be in condition to be moved to withdraw fluid from the brake system to limit brake pressure. When a potential for excessive slip of a driven wheel is detected, the piston is moved to increase the volume of the cylinder to draw in braking fluid from a reservoir. The modulator is then in condition to apply regulated brake pressure to limit excessive slip. When the potential for excessive slip no longer exists, the piston is controlled to provide minimum volume while returning the brake fluid to the reservoir. The modulator is then again in condition for limiting brake pressure.
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patent: 3420580 (1969-01-01), Dymond
patent: 3549210 (1970-12-01), Birge et al.
patent: 4046214 (1977-09-01), Adahan
patent: 4511971 (1985-04-01), Dittner et al.
patent: 4571010 (1986-02-01), Dittner et al.
patent: 4627670 (1986-12-01), Matsuda et al.
patent: 4664453 (1987-05-01), Kade et al.
patent: 4756391 (1988-07-01), Agarwal et al.
Leppek Kevin G.
Walenty Allen J.
Conkey Howard N.
General Motors Corporation
Ham Seung
LaRoche Eugene R.
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