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Expired Canadian patentCanada

Method of spraying liquids on the surfaces of particles

CA 1161245 A · Owner: Turner, Harold D. · Inventors: Turner, Harold 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

To uniformly and economically disperse liquids via sprays, of droplets, on surfaces of particles a method of moving the particles involves their rotary lifting, followed by their free falling with, a spray of droplets originating from a central area of the overall motion path of the particles. In a preferred embodiment of the method and a preferred embodiment of the blending apparatus a hollow, drum is rotated about a near horizontal axis. Inside the drum on a common rotating shaft spaced slightly conical discs ultimately disperse respective sprays of droplets from a central area. This central area is defined by particles being lifted while centrifugally held to the interior of the drum and …

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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 January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1981
GrantedJanuary 31, 1984
Term endedJanuary 31, 2001
Patent numberCA 1161245 A
Classification (IPC)B05B13/00

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedNov 18, 1981Patent grantedJan 31, 1984Term endedJan 31, 2001

Sources & verification

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