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:
Jun. 22, 2010
Filed:
Mar. 13, 2006
Applicants:
James Robert Smith, Taunton, GB;
Gary Peter Knight, Bristol, GB;
Inventors:
James Robert Smith, Taunton, GB;
Gary Peter Knight, Bristol, GB;
Assignee:
Edwards Limited, Crawley, West Sussex, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/46 (2006.01); B01D 53/68 (2006.01); B01D 53/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of treating a gas stream containing silane or other silicon-containing gas is described, in which the gas stream is conveyed to a liquid ring pump or screw-mechanism pump, to which are also supplied an oxidant for oxidising the silicon-containing gas within the pump, and a liquid for forming a liquid ring or intermittent flushing within the pump. A liquid stream containing said liquid and a by-product of the oxidation of the silicon-containing gas is exhaust from the pump.