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:
Mar. 29, 2005
Filed:
Sep. 12, 2002
Applicants:
Osamu Takahashi, Nagano-ken, JP;
Masatoshi Moteki, Shiojiri, JP;
Inventors:
Osamu Takahashi, Nagano-ken, JP;
Masatoshi Moteki, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B043/08 ;
U.S. Cl.
CPC ...
Abstract
A liquid dischargerA has a baseA where a resilient tubeis disposed in a tube guide grooveA. A retainerA is rotatably provided at the baseA, with a plurality of ballsbeing mounted at the retainerA so that the balls can roll. The cross sectional shape of a surfacedefining the tube guide grooveA that contacts the tubehas an arc shape formed concentrically with the balls. The balls, which are held by the retainerA, roll on the tubewhile pressing and squashing a portion of the tubeas a rotorA rotates in order to discharge liquid inside the tube