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. 11, 2025
Filed:
Sep. 18, 2023
Aisan Kogyo Kabushiki Kaisha, Obu, JP;
Masafumi Yamagata, Toyoake, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu, JP;
Abstract
A valve system includes a tank, a valve member, a driving device configured to move the valve member for opening and closing the tank, and a control unit. The circuit of the control unit is programmed to move the valve member in the open direction after beginning of a process, and then reverse a direction of movement of the valve member to a standby position in a valve closed state. If the first rate of pressure change in the internal pressure of the tank since the cycle began is greater than a target rate of change, the circuit determines a waiting time such that a second rate of pressure change of the internal pressure from the start to the end of the cycle is equal to the target rate of change, and then keeps the driving device in the standby position until the determined waiting time has elapsed.