Input shaft overspeed warning system
CA 2127385 C · Owner: Hutchison, Ronald Allen · Inventors: Hutchison, Ronald Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manually-shifted synchronized compound transmission (10) is provided with a relatively simple and inexpensive mechanism for warning the operator that, an inappropriate gear ratio has been selected. Sensors ( 110 112, 114) , provide, input signals (116) to a logic unit (118) indicative of the rotational speed of the, transmission input shaft (118) and the logic unit will issue command signals (120), to an alarm member (122) if sensed input shaft speed is not within an acceptable, range to warn the vehicle operator that reengagement of the vehicle master clutch, (C) in the currently engaged ratio (GR) will result in undesirable overspeeding, and/or underspeeding of the vehicle engine …
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 July 5, 1994 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2016.
- 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.