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:
Feb. 04, 1992
Filed:
Mar. 13, 1991
Kouichi Iwata, Oobu, JP;
Katsuyoshi Fukaya, Oobu, JP;
Aisan Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A flow control device having a single valve body fixed to an operating shaft which is reciprocated by a single stepping motor to control the flow rate of air flowing two by-pass passages. Two air outlet ports and one air inlet port are formed in an air dispensing housing. Interior space of the housing is divided into two by-pass passages by a first valve seat. The valve body fixed to the operating shaft comprises a first valve portion for controlling the flow rate of air in cooperation with an opening formed in the first valve seat and a second valve portion for controlling the flow rate of air in cooperation with an opening of a second valve seat provided in the other air outlet port, the first and second valve portions being formed contiguously with each other.