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. 18, 2020
Filed:
Aug. 24, 2016
Applicant:
Pfeiffer Vacuum Gmbh, Asslar, DE;
Inventor:
Armin Conrad, Herborn, DE;
Assignee:
Pfeiffer Vacuum GmbH, Asslar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 45/047 (2006.01); F04B 35/04 (2006.01); F04B 37/16 (2006.01); F04B 43/04 (2006.01); F04B 37/14 (2006.01); F04B 43/00 (2006.01); F04B 43/02 (2006.01); F04B 43/14 (2006.01); F04B 41/06 (2006.01); F04B 45/04 (2006.01); F04B 49/06 (2006.01); F04B 49/22 (2006.01); F04B 53/10 (2006.01);
U.S. Cl.
CPC ...
F04B 45/047 (2013.01); F04B 35/045 (2013.01); F04B 37/14 (2013.01); F04B 37/16 (2013.01); F04B 41/06 (2013.01); F04B 43/0054 (2013.01); F04B 43/02 (2013.01); F04B 43/023 (2013.01); F04B 43/04 (2013.01); F04B 43/14 (2013.01); F04B 45/041 (2013.01); F04B 49/06 (2013.01); F04B 49/22 (2013.01); F04B 53/1075 (2013.01);
Abstract
A membrane vacuum pump has at least one working space which is bounded by a membrane deformable to change the size of the working space and by a wall in which at least one inlet and at least one outlet are formed for a medium which is sucked into the working space which increases in size in so doing in a suction phase and is expelled via the outlet from the working space which decreases in size in so doing in a compression phase. The membrane vacuum pump furthermore has a controllable actuator unit for deforming the membrane by a contactless action on the membrane by means of electrical and/or magnetic fields.