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. 25, 1979
Filed:
May. 24, 1977
Applicant:
Inventors:
Noriaki Kawai, Okazaki, JP;
Heisuke Yamamoto, Toyota, JP;
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ; F02M / ;
U.S. Cl.
CPC ...
1231 / ; 123 / ; 1231 / ; 123D / ; 261D / ;
Abstract
Disclosed is a butterfly valve opening degree setting device comprising a diaphragm apparatus. The diaphragm apparatus has a diaphragm, a vacuum chamber and a control rod connected to the diaphragm. The control rod is arranged so as to be engageable with the butterfly valve disposed in the duct. The vacuum chamber of the diaphragm apparatus is connected to the vacuum port formed on the inner wall of the duct. The butterfly valve is held open at a position wherein the peripheral edge of the butterfly valve faces the vacuum port.