Interface adapter for interfacing a remote controller with commercial refrigeration and environmental control systems
CA 1295034 C · Owner: Munson, Arden L. · Inventors: Munson, Arden L.; Gruber, Joseph C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interface adapter for use in combination with a commercial installation having a central refrigeration system with multiple compressors and refrigerated units and also having environmental apparatus for regulating the heating ventilating and air conditioning of such installation. The refrigeration system has a local control apparatus for operating the system in response to local status signals and has remote control input ports for remote control of the system. A remote electronic controller adapted to receive the local status signals and to override at least part of said local control means operates the refrigeration system by generating an electrical control signal and a switchback …
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.