Digital engine analyzer
CA 2239915 C · Owner: Govekar, Craig F. · Inventors: Jonker, Gary D.; Meeker, Michael B.; Piehl, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital engine analyzer has an oscilloscope display and is controlled by microprocessors operating under menu-driven stored program control. The analyzer receives analog input signals from an engine being analyzed engine, identification and parameter data entered via a keyboard function and mode data selected by keyboard and data, communicated from an engine on-board computer via a hand-held scanner device. The analyzer calculates and displays spark plug burn time information derived from a single analog input signal, a historical display of peak ignition voltage values for a selected cylinder over a number of engine cycles and real time cylinder time balance information. Peak capture …
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
- Filed August 1, 1991 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2013.
- 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.