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:
Nov. 05, 2024
Filed:
Mar. 13, 2023
Semes Co., Ltd., Cheonan-si, KR;
Dong Hwa Lee, Anyang-si, KR;
Dai Geon Yoon, Anyang-si, KR;
Bong Man Choi, Cheonan-si, KR;
Jong Suk Won, Seongnam-si, KR;
Hyeong Jun Cho, Seoul, KR;
Abstract
Provided is a pressure control device for stably controlling the internal air pressure of a reservoir. The pressure control device includes: an input terminal receiving source air pressure; an intake valve connected between the input terminal and an output terminal; an exhaust valve connected to the output terminal; a pressure sensor connected to the output terminal and generating a sensed value by sensing pressure at the output terminal; and a controller simultaneously operating the intake valve and the exhaust valve by simultaneously operating a first control loop for adjusting the degree of opening of the intake valve by comparing the sensed value with a first target value and a second control loop for adjusting the degree of opening of the exhaust valve by comparing the sensed value with a second target value.