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. 18, 1997
Filed:
Jul. 27, 1995
Takeharu Ooumi, Toyota, JP;
Yoshihiro Naruse, Ichikawa, JP;
Takahiro Yamada, Ichikawa, JP;
Kinji Tsukahara, Seki, JP;
Mitsuhiro Ando, Toyohashi, JP;
Katsuya Tsuchimoto, Anjou, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A micropump is disclosed including an input port, an output port, a fluid channel space located therebetween, a first oscillating member for opening or closing between the fluid channel space and the input port, a second oscillating member for opening or closing between the fluid channel space and the output port, and at least one third oscillating member for reducing/enlarging the volume of the fluid channel space. The micropump is provided with pressure correcting means which applies a pressure, substantially equal to a fluid pressure at the input port, to a space located outside the fluid channel space and in which the first oscillating member oscillates.