Atmosphere control apparatus
CA 1281795 C · Owner: Murakami, Kanji · Inventors: Murakami, Kanji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An atmosphere control apparatus employs first and second chambers having a large storage capacity and located for example, adjacent the ceiling and adjacent the floor of the audience seating section of a movie theatre respectively. Cool and warm air, supplied from an air conditioner, are stored in the first and second chambers respectively. In order to create an atmosphere similar to that in, for example, a movie scene, the cool air in the first chamber and the warm air in the second chamber are selectively blown outward in the direction of the audience seating section in accordance with a control signal.
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 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 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.