Reactivateable adsorption filter assembly
CA 1289482 C · Owner: Dowty Fuel Systems Limited · Inventors: Marr, Douglas Stuart Balfour
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A REACTIVATEABLE ADSORPTION FILTER ASSEMBLY" A reactivateable adsorption filter assembly comprises an adsorption filter element a, storage vessel in which is stored filtered fluid, a flow restrictor to restrict the flow of fluid between the adsorption filter element and the-storage vessel and a purge valve on the inlet side of the adsorption filter element to selectively connect the filter assembly to a source of fluid at a low pressure the, arrangement being such that when the purge valve is opened to said source of fluid at low pressure filtered fluid containing adsorbate at a very low partial pressure flows back from the storage vessel through the adsorption filter element thereby …
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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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.