Water vapor exchange system
CA 1238867 A · Owner: United Technologies Corporation · Inventors: Dantowitz, Philip; Mcelroy, James F.; Chludzinski, Paul J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and process to transfer water vapor to a first gas stream by withdrawing it from a second lower pressure gas stream. Water vapor is directly exchanged from a lower pressure to a higher pressure stream by means of a water transport membrane positioned between the two streams. Water vapor can be transported from a lower pressure to a higher pressure stream as long as the partial pressure of the water vapor is higher in the transferor stream than in the transferee stream even though the total pressure of the transferor stream is higher.
Read the whole patent
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 July 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2005.
- 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.