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:
Apr. 18, 2017
Filed:
Feb. 04, 2013
Applicant:
Invacare Corporation, Elyria, OH (US);
Inventors:
Gerold Goertzen, Homerville, OH (US);
William A. Null, Jr., Sullivan, OH (US);
Assignee:
Invacare Corporation, Elyria, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/00 (2006.01); F04B 25/00 (2006.01); F04B 1/00 (2006.01); F04B 27/04 (2006.01); F04B 53/00 (2006.01);
U.S. Cl.
CPC ...
F04B 25/00 (2013.01); F04B 1/00 (2013.01); F04B 27/0451 (2013.01); F04B 53/006 (2013.01);
Abstract
A pumping device compresses fluid, provides a vacuum, or both compresses fluid and provides a vacuum. A pumping device may be used to force gas through a sieve bed, draw gas out of a sieve bed, or both force gas through a sieve bed and drawing gas out of a sieve bed. A pumping device may be operated at high speed to provide a high fluid flow rate with a small pumping device.