Superpurifier for argon gas and process for purifying argon gas
CA 1300344 C · Owner: Saes Getters S.P.A. · Inventors: Doni, Fabrizio; Nagai, Kiyoshi; Boffito, Claudio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a superpurifier for argon gas and to a process for superpurifying an argon gas. According to the invention the superpurifier comprises means, for contacting an impurity-containing argon gas with a getter material which is an alloy of zirconium vanadium and iron. The, getter material of the superpurifier selectively sorbs impurities from an impurity-containing argon gas thereby producing a purified argon gas. The present invention also relates to a method of purifying an impurity-containing argon gas using this superpurifier. The present invention provides means for obtaining an argon gas of higher purity than can be obtained by prior purifying processes and …
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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 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- 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.