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. 03, 2004
Filed:
Sep. 07, 2001
Applicant:
Inventors:
Tetsuji Kurata, Kanagawa, JP;
Hirofumi Hirano, Kanagawa, JP;
Yoshitaka Okamura, Kanagawa, JP;
Keiji Takahashi, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 ; B41J 2/165 ; F04F 1/100 ;
U.S. Cl.
CPC ...
B41J 2/175 ; B41J 2/165 ; F04F 1/100 ;
Abstract
Down-sizing of a pump for sucking two types of different fluids is realized. The pump is provided with a cylinder pump having a cylinder main body having a reciprocally movable piston, a first cylinder chamber partitioned at one side of the piston for being introduced with a first fluid, and a second cylinder chamber partitioned at the other side of the piston for being introduced with a second fluid, and piston driving means for reciprocally moving the piston of the cylinder pump.