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. 14, 2025
Filed:
May. 29, 2023
Applicant:
Maruyama Mfg. Co., Inc., Tokyo, JP;
Inventors:
Yushi Maruyama, Tokyo, JP;
Toshihisa Nemoto, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 43/06 (2005.12);
U.S. Cl.
CPC ...
F04B 43/06 (2012.12);
Abstract
A diaphragm pump includes a low pressure side diaphragm forming a part of a pulsation operating chamber, a high pressure side diaphragm forming a part of a pump chamber, and a connecting portion connecting the low pressure side diaphragm and the high pressure side diaphragm. The high pressure side diaphragm operates in conjunction with the low pressure side diaphragm by being connected to the low pressure side diaphragm by the connecting portion. An area of a high pressure side operating portion of the high pressure side diaphragm is smaller than an area of a low pressure side operating portion of the low pressure side diaphragm.