Vehicle speed control device
CA 1261032 A · Owner: Thornton-Trump, Walter E. · Inventors: Thornton-Trump, Walter E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for automatically limiting the maximum speed of a vehicle to a predetermined maximum particularly suitable for use with off-road vehicles such as aircraft deicing trucks. The system utilizes a magnetic hall effect sensor to generate a speed signal which is compared to a signal representative of a preselected maximum vehicle speed. In response to the comparison a pulse-width modulated control signal is generated and used to control a transistor in series with the ignition coil primary thereby intermittently disrupting the ignition system.
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 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.