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. 29, 1999
Filed:
Mar. 27, 1997
Todd F Bischoff, Midland, MI (US);
Roland Lee Halm, Midland, MI (US);
Dennis Gene Van Koevering, Midland, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
An improved structured packing for use in a liquid-vapor contact column. More specifically in a structured packing for liquid-vapor contact where the structured packing comprises laterally orientated channels having peripheral openings, the improvement comprises substantially occluding the peripheral openings with a barrier film. The present invention also includes an improved liquid-vapor contact column comprising a column shell having positioned within a structured packing comprising an outer surface in non-occlusive proximation to the column shell and laterally orientated channels having peripheral openings through the outer surface, the improvement comprising substantially occluding the peripheral openings with a barrier film.