Gas liquid contact tray and method of use
CA 1253432 A · Owner: Kgi, Inc. · Inventors: Hsieh, Chang-Li
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas liquid contact tray and method of using the tray and columns containing the tray, which gas liquid contact tray is characterized by high tray efficiency and capacity and a wide turndown ratio and which tray comprises: a tray, deck containing a plurality of openings therein such as valves, to provide for the, intimate contact of an upwardly flowing gas stream through the openings with liquid on the tray deck; one or more downcomers to provide a passageway for the, transportation of liquid from the tray deck to a lower tray deck or lower portion of the column; and mass-transfer packing materials in the passageway of one or more of the downcomers, to provide for the intimate gas liquid …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 2, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 2, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.