Single relay for motor and heater control
CA 1196993 A · Owner: Maytag Company (The) · Inventors: Ellingson, David I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microprocessor controlled fabric drying apparatus is provided including structure having a rotatable fabric tumbler a drive motor for driving the tumbler, and a heater for drying fabrics in the tumbler. A first circuit energizes the drive motor and includes a first relay switch and a centrifugal switch. The first circuit is operable for initiating energization of the drive motor in a first posture of the centrifugal switch and for maintaining rotation of the drive motor in a second posture thereof. A second circuit energizes the heater and includes a second relay switch, An interfacing circuit electrically interfaces the microprocessor with the drive motor and the heater through a single …
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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 November 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 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.