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:
May. 20, 2025
Filed:
Apr. 26, 2023
Applicant:
Mabuchi Motor Oken Co., Ltd., Tokyo, JP;
Inventors:
Masatsugu Shirai, Tokyo, JP;
Kazuki Itahara, Tokyo, JP;
Assignee:
MABUCHI MOTOR OKEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 43/00 (2006.01); F04B 53/10 (2006.01); F16K 15/14 (2006.01); F04B 43/04 (2006.01);
U.S. Cl.
CPC ...
F04B 43/0045 (2013.01); F04B 43/0063 (2013.01); F04B 43/009 (2013.01); F04B 53/1065 (2013.01); F16K 15/148 (2013.01); F04B 43/04 (2013.01); F04B 53/10 (2013.01); F04B 2201/0605 (2013.01);
Abstract
A diaphragm pump converts rotation of a motor into a reciprocating motion and drives a diaphragm. The diaphragm pump includes a partition configured to form a pump chamber together with a deformation portion of the diaphragm, a suction passage communicating with the pump chamber via a suction through hole extending through the partition, and a suction valve configured to open/close the suction passage. The valve body of the suction valve includes a leak structure configured to form a channel between the valve body and the seat surface of the partition.