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:
Nov. 29, 2016
Filed:
Jan. 13, 2012
Graham Thomas Legge, Philadelphia, PA (US);
Michael Andrew Galtry, Worthing, GB;
Graham Thomas Legge, Philadelphia, PA (US);
Michael Andrew Galtry, Worthing, GB;
Edwards Limited, Crawley, GB;
Abstract
The present invention relates to a vacuum system for evacuating a chamber of a metallurgical processing system. The system comprises a vacuum pumping arrangement for evacuating gas from the chamber, a foreline connecting the vacuum pumping arrangement to the chamber, a filter volume located in the foreline for filtering gas evacuated from the chamber along the foreline, and a by-pass line connecting the vacuum pumping arrangement to the chamber and arranged to by-pass the filter volume selectively dependent on monitored characteristics of the degassing chamber or the vacuum system.