Air flow control device
CA 1053062 A · Owner: Trane Company Of Canada Limited · Inventors: Mcnabney, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an air distribution system according to the present invention in which conditioned air at a ~ substantially constant temperature is delivered to a plurality of zones there is provided an improved control system which comprises a damper for varying the volume of conditioned air delivered to at least one of the zones, a pneumatic thermostat responsive to the temperature in said one zone, a sensor for measuring the velocity pressure of the conditioned air near said one zone, a pressure responsive device communication with the sensor and a damper actuator normally responsive to the thermostat, the damper actuator being responsive to the pressure responsive device when the velocity pressure …
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 April 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 1996.
- 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.