The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 1978
Filed:
Oct. 14, 1976
Virginio Maggioni, Rosta (Turin), IT;
Enrico Rivetti, Turin, IT;
FIAT Societa per Azioni, Turin, IT;
Abstract
A fluid operated braking system for a motor vehicle, having a main braking circuit for applying braking pressure to the actuators of both wheels of at least one axle of the vehicle and a subsidiary braking circuit for applying a reduced braking pressure to one of the wheels of the axle if it should enter a skid or incipient skid state, in which the subsidiary braking circuit is controlled by two distributors each of which has three ports, one connected to the main braking circuit, one connected to the subsidiary braking circuit, and one connected to the brake actuator of an associated wheel of the axle, the distributor being controlled by an electrovalve to connect the main braking pressure circuit to the brake actuator of the associated wheel of the axle under normal condition and to connect the subsidiary braking circuit, through an internal path within the distributor to the brake actuator of one wheel of the axle when this wheel enters a skid or incipient skid state, without affecting the distributor associated with the other wheel of the axle. This internal path in the distributor includes elements which produce a varying resistance to the passage of fluid thereby permitting a gradually increasing brake pressure to be applied to the skidding wheel.