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Expired Canadian patentCanada

Apparatus and method for counting fruits and other objects

CA 1106465 A · Owner: Sunkist Growers, Inc. · Inventors: Conway, Tim D.

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Abstract From the Canadian patent

Apparatus and method for the counting of objects and in particular fruits such as oranges, grapefruit lemons, and, the like, which are randomly continuously presented by a conveyor or other means to a counting area in which the objects are illuminated. An image of the counting area and illuminated objects is optically reproduced on a self-scanning photodiode array which generates a series of output analog video signals corresponding to the light intensity on each of the photodiodes. These analog signals are amplified and compared with a voltage that is approximately 60% of the peak voltage value from the array, to provide an output binary signal pulse having a digital logic value of "1" …

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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

  • Granted August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
  • 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 16, 1978
GrantedAugust 4, 1981
Term endedAugust 4, 1998
Patent numberCA 1106465 A
Classification (IPC)G06M7/00 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 16, 1978Patent grantedAug 4, 1981Term endedAug 4, 1998

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