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.

Date of Patent:
Jan. 31, 2012

Filed:

Jun. 13, 2005
Applicants:

Roland Gregor Paul Kusay, Redhill, GB;

Clive Marcus Lloyd Tunna, Bolney, GB;

Inventors:
Assignee:

Edwards Limited, Crawley, West Sussex, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of inhibiting combustion within a vacuum pump is provided. The method steps include monitoring and composition of a fluid within the pump and supplying purge gas to the pump to inhibit the onset of a combustion of the fluid. There is also provided a pumping arrangement comprising a vacuum pump () together with means () for supplying purge gas to the pump. Sensor means () are provided for outputting a signal indicative of the onset of a combustion condition within the pump. Control means () receive the signal and, in turn, actuate the supply means () dependant on the signal received.


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