Micro diaphragm pump

US5718567A · kind A · utility

Assignees

• Forschungszentrum Karlsruhe GmbH · DE
• Burkert GmbH & Co. KG · DE

Inventors

• Richard Rapp · Blankenloch, DE
• Helmut Kalb · Roth, DE
• Walter Stark · Baltimore, US
• Dieter Seidel
• Hans Biedermann · Bruchsal, DE

Key dates

• Filing date: Mar 15, 1996
• Grant date: Feb 17, 1998
• Expiry date: Mar 15, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B43/043
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a micro diaphragm pump which has a pump body consisting of two parts, one part including two valve chambers with a pump chamber disposed therebetween and in communication with the valve chambers by passages, a diaphragm extends across and closes the chambers and forms, in the areas of the valve chambers, valve membranes for inlet and outlet valves which are integrally formed, both on one side of the diaphragm, both pump body parts being sealingly connected to the diaphragm.