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. 25, 2014
Filed:
Feb. 16, 2010
Applicants:
Gerald Robin Shelley, Uckfield, GB;
Mark Kollin Romeo, North Plains, OR (US);
Jeffrey Robert Schwab, Beaverton, OR (US);
Inventors:
Gerald Robin Shelley, Uckfield, GB;
Mark Kollin Romeo, North Plains, OR (US);
Jeffrey Robert Schwab, Beaverton, OR (US);
Assignee:
Edwards Limited, West Sussex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/20 (2006.01); F04B 49/08 (2006.01); F04B 37/14 (2006.01);
U.S. Cl.
CPC ...
F04B 49/20 (2013.01); F04B 49/08 (2013.01); F04B 37/14 (2013.01); F04B 2201/1201 (2013.01); F04B 2207/02 (2013.01);
Abstract
An apparatus for tuning pump speed at an optimal or desired speed using an automated method is disclosed. The apparatus includes a vacuum pump connected to a chamber for evacuating gas from the chamber. A sensor measures one or more characteristics, such as pressure, of the gas in the chamber. The measured characteristic is compared to a predetermined value. The speed of vacuum pump is adjusted based on the comparison until it falls in a desired range.