Automatic air conditioner charging station with over- ride controls
CA 1261427 A · Owner: Standard Motor Products, Inc. · Inventors: Proctor, Robert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air conditioner charging station includes oil and refrigerant reservoirs, a vacuum pump, and an electronic sequencing unit. A header conduit connected to the reservoirs and vacuum pump is connected to a cross-over conduit, which in turn is connected to conduits extending to the high and low pressure sides of an air conditioner compressor. Electrically operated valves are provided in the cross-over conduit, in a dump conduit connected to the cross-over conduit, and in branch conduits connected to the reservoirs and to the vacuum pump. An over-ride control of the cross-over valve is provided responsive to, the pressure of the high pressure side and an over-ride control is provided for …
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.