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. 11, 1990
Filed:
Mar. 10, 1989
Applicant:
Inventors:
Domenico D'Angelo, Monza, IT;
Marco Visconti, Bollate, IT;
Assignee:
Alfa Lancia Industriale S.p.A., Arese, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123 / ; 137855 ;
Abstract
The valve unit comprises non-return valves disposed within the intake duct and formed from longitudinal channels and flaps which engage these latter. The channels are provided with seal gaskets at their edges and are formed with their base walls shaped on their outer side in such a manner as to improve the valve reliability and life. The flaps comprise fixing tabs which are clamped between ledges and support surfaces of the superposed channels.