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:
Nov. 27, 2012
Filed:
Dec. 15, 2011
Hajime Miyazaki, Matsumoto, JP;
Mamoru Miyasaka, Shiojiri, JP;
Kazuo Kawasumi, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
A fluid transportation system includes: an elastic tube; a tube frame having a tube guide groove to which the tube is attached in a circular arc; a cam driving wheel interior of the tube and having a rotational center coinciding with the center of the circular arc of the tube guide groove; a first cam fixed to a center shaft of the cam driving wheel; a second cam rotatably supported by the center shaft; and a plurality of fingers radially extending from the rotation center between the tube and the first and second cams and pressing the tube by the rotation of the first and second cams, wherein when the fluid transportation system starts to operate, the first and second cams produce a state in which the second cam is attached to the first cam and at least one of the plural fingers closes the tube.