Zero phase switching for multi-phase systems
CA 1088195 A · Owner: Honeywell Limited · Inventors: Gyursanszky, Zoltan L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-phase zero phase control apparatus is, disclosed having switches for controlling the application of power from a multi-phase source to a load and a control apparatus for energizing the switches to conduct current to the load beginning at the zero point in the current cycle wherein, the control apparatus has a synchronization network to insure that the control apparatus is synchronized to the line current regardless of the conductive states of the switches.
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 October 21, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 1997.
- 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.