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Expired Canadian patentCanada

Devices for extracting power from a moving fluid

CA 1302898 C · Owner: Reid, Alister Ure · Inventors: Reid, Alister Ure

CIPO record

Overview

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

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Abstract From the Canadian patent

A device foe extracting power from a moving fluid comprises a housing having a prime mover rotatably mounted therein. The device is provided with an inlet port positioned for receiving a second fluid stream AS2 for driving the prime mover , a large volume chamber to receive the discharge from the prime mover and an outlet port positioned in a first fluid stream AS1. The first and second fluid streams AS1 and AS2 are spaced apart from another. The device is configured so that the direction of flow of one of the first or second fluid streams AS1 or AS2 is changed in order that the second fluid stream AS2 leaving the housing is combined with the first fluid stream AS1 at the outlet ports . 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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 15, 1989
GrantedJune 9, 1992
Term endedJune 9, 2009
Patent numberCA 1302898 C
Classification (IPC)F03D1/04 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMay 15, 1989Patent grantedJune 9, 1992Term endedJune 9, 2009

Sources & verification

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