Controller for the proportion of air flows
CA 1097558 A · Owner: Valmet Oy · Inventors: Heinola, Reino
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an air flow regulator for regulating the amount of air flowing along a first path in relation to the amount of air flowing along a second path comprising a bellows, moving in a chamber and dividing the chamber into two separate compartments, one of which communicates with one air flow path and the other of which communicates with the other air flow path said, bellows being arranged to move a damper in one of the air flow paths through an intermediate member and thereby vary the air flow in that path in accordance with the air flow in the other path.
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 March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1998.
- 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.