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:
Oct. 01, 1991
Filed:
May. 07, 1990
Koji Katayama, Himeji, JP;
Mitsubishi Denki K.K., Tokyo, JP;
Abstract
A valve unit for controlling a fluid flow through a fluid passage (2) comprising a valve assembly (27) having a substantially cylindrical valve holder (43) axially movably mounted to a motor shaft (34,35) and a valve member (44) securely attached to the valve holder (43), and a conversion mechanism, including spiral splines (35,49) disposed between the motor shaft (34,35) and the valve holder (43) and an axial guide (24,42) disposed between the motor (26) and the valve holder (43), for converting a rotation of the motor shaft (30) into an axial translational movement of the valve assembly (27). The valve holder (43) and the valve member (44) are made of a resin and fastened together by a bayonet joint (45) and welding (46).