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:
Apr. 07, 2026
Filed:
Mar. 27, 2023
Fujikoki Corporation, Tokyo, JP;
Tatsuya Yoshida, Tokyo, JP;
Yusuke Arai, Tokyo, JP;
FUJIKOKI CORPORATION, Tokyo, JP;
Abstract
An electric valve includes a valve body that has a valve port and a valve seat enclosing the valve port, a valve member that faces the valve port, a valve stem, and a stepping motor. The valve stem has an external thread. The valve body has an internal thread into which the external thread is screwed. The external thread and the internal thread constitute a screw-feed mechanism. The valve stem is coaxially secured to a magnet rotor of the stepping motor. The lower end of the valve stem is connected to the valve member. When the magnet rotor rotates in a valve closing direction, the valve member moves toward the valve port. When the valve member comes into contact with the valve seat, the valve member is restricted from moving toward the valve port.