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Expired Canadian patentCanada

Tactile control for automated bucket loading

CA 2125375 C · Owner: Geoffroy, Louis · Inventors: Drouin, Andre; Geoffroy, Louis; Dasys, Andrew

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Tactile control for automated bucket loading is achieved through the use of sensor feedback provided by pressure and extension sensors on hydraulic cylinder(s) to control the trajectory of the bucket to be loaded by a computer algorithm. Additional sensors can be used to provide further control of the loading cycle and of the vehicle operation. The invention can be integrated with existing machinery or used on new loaders such as LHDs, equipped with a suitable control interface capable of taking computerized control of the vehicle's actions.

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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 June 7, 1994 and granted April 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 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.
FiledJune 7, 1994
GrantedApril 20, 1999
Term endedJune 7, 2014
Patent numberCA 2125375 C
Classification (IPC)E02F3/36 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJune 7, 1994Patent grantedApril 20, 1999Term endedJune 7, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.