Variable volume multizone unit
CA 1188560 A · Owner: Carrier Corporation · Inventors: Clark, William E.; Wellman, Donald C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract Of The Disclosure A variable volume multizone unit is disclosed for simultaneously supplying variable amounts of cool warm or neutral, air to each zone, as required. The unit is under the overall control of a computer and controls dampers located at the unit to regulate the flow of cool and neutral or warm air to each zone individually and to control the total amount of air supplied to all of the zone.
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 June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.