logo

For the Inventor, By the Inventor

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.:

US 10641262 B1

PDFFull Text
Date of Patent:
May. 05, 2020

Filed:

Jun. 18, 2018

Diaphragm pump

Applicant:

Okenseiko Co., Ltd., Tokyo, JP;

Inventor:

Akira Inoue, Tokyo, JP;

Assignee:

OKENSEIKO CO., LTD., Tokyo, JP;

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Peter J Bertheaud

Int. Cl.
CPC ...
F04B 45/02 (2006.01); F04B 53/18 (2006.01); F04B 43/02 (2006.01); F04B 43/04 (2006.01); F04B 43/00 (2006.01); F04B 53/00 (2006.01); F04B 35/04 (2006.01); F04B 39/00 (2006.01);
U.S. Cl.
CPC ...
F04B 45/022 (2013.01); F04B 35/04 (2013.01); F04B 43/0045 (2013.01); F04B 43/026 (2013.01); F04B 43/04 (2013.01); F04B 43/043 (2013.01); F04B 53/18 (2013.01); F04B 39/0094 (2013.01); F04B 43/02 (2013.01); F04B 53/006 (2013.01);
Abstract

A diaphragm pump () includes a driving body () configured to convert a rotation of a crank body () into a reciprocal motion and transmit the reciprocal motion to a deformed portion () of a diaphragm (). The driving body () includes a shaft portion () including a shaft hole () in which a driving shaft () fixed to the crank body is rotatably fitted. The shaft hole is a non-through hole including an opening-side end () and a closed-side end () each including an inner peripheral surface that contacts the driving shaft over a whole circumference. The shaft portion includes an oil storage () opening to a region between the opening-side end and the closed-side end of the shaft hole.

Find Patent Forward Citations

Loading…