Airspring height sensor
CA 1313697 C · Owner: Hovance, Hubert T. · Inventors: Hovance, Hubert T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An airspring height control device is disclosed based on an infrared light emitting diode and photo transistor receiver combination to reflect a signal from a reflector located internally to an airspring. The variable output signal given off by the receiver is proportional to the distance from the transmitter/ receiver to the reflector thus allowing a height controlling mechanism to respond to the signal and make the necessary adjustments.
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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- 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.