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:
Aug. 14, 2007
Filed:
Jan. 23, 2003
Jonathan Heath Veal, Halifax, GB;
Martin David Powell, Leeds, GB;
Simon Broughton, Rochdale, GB;
Gareth Ian Naylor, Halifax, GB;
Jonathan Heath Veal, Halifax, GB;
Martin David Powell, Leeds, GB;
Simon Broughton, Rochdale, GB;
Gareth Ian Naylor, Halifax, GB;
Ciba Specialty Chemicals Water Treatments Ltd., West Yorkshire, Bradford, GB;
Abstract
Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column () and forced down the column by a tubular baffle () which defines, with the inner wall of the column, an annulus () that is closed at its top (). After passing to the bottom of the annulus the fluid forms an even film over the inner surface of the column and gas disengaging from the liquid can rise up the column while liquid accumulates at the bottom of the column. To assist the disengagement of the gas from the liquid the column is preferably of increasing cross section towards the bottom so that the thickness of the film is also reduced.