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:
Feb. 17, 1998
Filed:
Mar. 15, 1996
Applicant:
Inventors:
Richard Rapp, Stutensee, DE;
Helmut Kalb, Neuenstein, DE;
Walter Stark, Blaufelden, DE;
Dieter Seidel, Eggenstein-Leopoldshafen, DE;
Hans Biedermann, Bruchsal, DE;
Assignees:
Forschungszentrum Karlsruhe GmbH, Karlsruhe, DE;
Burkert GmbH & Co. KG, Ingelfingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417395 ; 417479 ;
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.