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Expired Canadian patentCanada

Flow distributor for fluid bed biological reactor

CA 1107481 A · Owner: Dorr-Oliver Incorporated · Inventors: Kos, Peter

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A flow distributor for a fluid bed reactor includes means for decreasing velocity of incoming streams in a uniform, non-turbulent fashion. Inlet ports communicate with fluid portals having divergent walls to slow incoming flow. The fluid portals feed liquid flow to a plurality of diffusing flow paths provided between diffusion baffles positioned at the bottom of the reactor. The diffusion baffles may be priamatic shapes which are trapezoidal in cross-section with the broadest horizontal dimension at the bottom thereof. The diffusion flow paths therefore have divergent walls and act to further slow the liquid flow passing therethrough.

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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 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 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.
FiledApril 24, 1979
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107481 A
Classification (IPC)B01J8/18 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedApril 24, 1979Patent grantedAug 25, 1981Term endedAug 25, 1998

Sources & verification

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