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:
Mar. 17, 1987
Filed:
Oct. 04, 1984
Applicant:
Inventor:
Morihiko Shimamura, Higashimatsuyama, JP;
Assignee:
Jidosha Kiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251263 ; 251258 ; 25112911 ; 74 55 ; 13759617 ; 1376275 ;
Abstract
A flow control device for controlling the flow rate of fluid utilizes a stepping motor. A translating mechanism translates the rotation of the stepping motor into a rectilinear movement which causes a valve to move in either forward or backward direction, thereby controlling a clearance formed between the valve and its associated valve seat. A channel area is controlled in this manner, and a flow control over an extensive range from a minimal to maximal flow is achieved with a high accuracy and improved response.