Ignition system
CA 1310356 C · Owner: Tecumseh Products Company · Inventors: Campen, Kenneth W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A breakerless electronic ignition system including a permanent magnet assembly (50), a transformer (16,28), an electronic ignition circuit (34) and a cut off switch (24). In one embodiment of the system, a charging coil (10) charges up a capacitor (12). The capacitor (12) is connected in series with an electronic switching device (14) and a primary coil (16) of the transformer. The transformer primary coil (16) has one end connected to the cut off switch (24) which is normally closed and which is connected to ground (26). When the cut off switch (24) is in the open position, current is prevented from flowing through the primary coil (16) whereas the electronic switching device (14) …
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.