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:
Apr. 12, 1977
Filed:
Jan. 07, 1976
Leonardo Cadeddu, Crema, IT;
Benditalia S.p.A., Crema, IT;
Abstract
The invention relates to a failure detector for a dual hydraulic circuit such as a dual brake circuit in a motor vehicle. The detector comprises a movable piston assembly so as to define in a bore on opposite sides thereof two pressure chambers. Switch means are provided to make electrical contact when the movable assembly moves in certain direction from a central idle position due to pressure imbalance between the chambers. The movable assembly comprises a sleeve acting with the switch means and two resilient discs. The sleeve is mounted in a core fixed to a plug mounted in the bore and having the same axial length as the sleeve. The two discs are sealingly slidable along the bore and mounted in a fluid-tight manner on two axial projections attached to the opposite sides of the core and being smaller in diameter than the core.