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:
Aug. 18, 2020
Filed:
Aug. 07, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Katsuyuki Yokoi, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01); B41J 2/175 (2006.01); F04B 43/12 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17596 (2013.01); B41J 2/16505 (2013.01); B41J 2/16508 (2013.01); B41J 2/16523 (2013.01); F04B 43/1253 (2013.01); F04B 43/1276 (2013.01);
Abstract
The present invention is intended to provide a tube pump which can suppress occurrence of a back flow of liquid in a tube at the time of reverse rotation of a second rotating body, with a simple configuration. The tube pump includes a tube; a case; a roller making a specific movement; a first rotating body having a guiding part which guides the roller in an arc radial direction of the arc-shaped wall surface of the case; and a second rotating body having a roller position regulating part acting on a position in an arc radial direction of the arc-shaped wall surface of the case of the roller.