Title:
電気小型ポンプ
Document Type and Number:
Japanese Patent JP2004537667
Kind Code:
A
Abstract:
A micropump provided with a cylindrical body ( 1 ) containing a measuring chamber ( 10 ) defined by a piston ( 2 ) and communicating firstly with a tank via an inlet orifice ( 10 a) provided with an inlet valve, and secondly with the outside via an outlet orifice ( 10 b) provided with an outlet valve, the micropump being characterized in that the piston ( 2 ) is connected to an external reciprocating actuator, and in that at least one of said valves is constituted by a valve member ( 3, 6, 7 ) suitable for being driven in translation by friction contact with said piston ( 2 ) successively in one direction and then in the other, and whose stroke inside the chamber ( 10 ) is shorter than the stroke of said piston.
Inventors:
Bougainmon, Jean-Louis
Dumont, Pierre
Dumont, Pierre
Application Number:
JP2002549388A
Publication Date:
December 16, 2004
Filing Date:
December 11, 2001
Export Citation:
Assignee:
REXAM DISPENSING SYSTEMS
International Classes:
F04B53/12; B05B9/08; B05B11/00; F04B13/00; F04B53/10; F04B53/14; (IPC1-7): F04B13/00; F04B53/10; F04B53/12; F04B53/14
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Hiroshi Kida
Shinsuke Onuki
Tadashige Ito
Hiroshi Kida