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:
Sep. 09, 1980
Filed:
Feb. 10, 1978
Enzo Fantozzi, Sesto San Giovanni, IT;
Fabbrica Italiana Magneti Marelli S.p.A., Milan, IT;
Abstract
Shut-off valve unit for damaged section in multi-sectioned pneumatic braking system for vehicles: each section has a shut-off valve that is spring loaded to close; each valve has an associated pneumatic device for loading the spring of the shut-off valve as a function of the pressure downstream of the shut-off valve; the pneumatic device including a shiftable piston under the control of the pressure associated with the other device for the other section of the braking system, such that shifting of the pneumatic device to its position as caused by elevated pressure in the other section increases the load on the associated spring of the shut-off valve of the respective section.