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Expired Canadian patentCanada

System of handling refuse derived fuel utilizing same to fire power plants

CA 1268667 C · Owner: Kinergy Corporation · Inventors: Dumbaugh, George D.

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

Abstract of the Disclosure A system for handling refuse derived fuel (RDF) devised to make RDF fired power plants practical that includes a method, and apparatus for receiving storing and discharging, distri-, buting and feeding RDF at the plant that accepts such material for fuel, which has been shredded to a predetermined nominal size and usually has most of the ferrous metals removed therefrom which system includes a relatively large activated bin for primary surge capacity purposes that initially receives and stores the RDF, to provide a binned quantity of same from which a continuous flow of the RDF can be generated that will result in a pulsation free, steady supply of RDF to the …

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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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 12, 1988
GrantedMay 8, 1990
Term endedMay 8, 2007
Patent numberCA 1268667 C
Classification (IPC)F23K1/00 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedAug 12, 1988Patent grantedMay 8, 1990Term endedMay 8, 2007

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