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.

Date of Patent:
Sep. 08, 1992

Filed:

May. 28, 1991
Applicant:
Inventors:

Koichi Ito, Kariya, JP;

Hideo Asano, Gifu, JP;

Akihito Higashihara, Chiryu, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
454 75 ; 236 / ; 25112904 ;
Abstract

An automotive air-conditioner has a casing forming an air passage through which an air passes and a film damper slidably disposed in the casing in such a manner to face to the air passage. The film damper having openings opens and closes the air passage. Holes are disposed on the film damper for indicating a position of the opening: Photointerrupters are disposed on the casing to detect the holes and output a present position signal that shows a present position of the film damper. A mode setting portion outputs a target position signal that shows a target position of the film damper. A microcomputer compares the present position signal with the target position signal, so that the microcomputer controls the film damper to stop at the target position.


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