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:
Dec. 11, 2001
Filed:
Jan. 19, 2000
Applicant:
Inventors:
Ralph Heimueller, Erlangen, DE;
Eberhard Schluecker, Obersulm, DE;
Assignee:
LEWA Herbert Ott GmbH & Co., Leonberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 3/02 ;
U.S. Cl.
CPC ...
F16J 3/02 ;
Abstract
In a diaphragm pump with a hydraulically driven diaphragm which runs in a wavy manner in the radial direction, the arrangement is such that the wavelength and/or the amplitude of the wavy formation of the diaphragm is made variable in the radial direction.