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, 2024
Filed:
Sep. 21, 2022
Applicant:
Protec Co., Ltd., Gyeonggi-do, KR;
Inventors:
Assignee:
PROTEC CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/06 (2006.01); F04B 17/03 (2006.01); F16K 31/00 (2006.01);
U.S. Cl.
CPC ...
F04B 49/06 (2013.01); F04B 17/03 (2013.01); F16K 31/004 (2013.01);
Abstract
A low hysteresis piezo-electric pump using a piezo-electric element as an actuator to dispense a liquid may maintain accurate viscous liquid discharge characteristics by adjusting an applied voltage in response to changes in behavioral characteristics of a piezo-electric actuator depending on causes such as temperature change.