Self-governing fluid energy turbine
CA 2223903 C · Owner: Aylor, Elmo Edison · Inventors: Aylor, Elmo Edison
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid energy turbine having a radial flow rotor (9) in which fluid driven blades (16) are peripherally distributed about a horizontal axis and in which auxiliary biased outlet gates (10) are provided for release of high fluid pressures to govern turbine speed such as in high storm winds. The blades additionally may be made featherable to govern the turbine speed by feathering the blades either preceding or after the gate openings or simultaneously as preset by the degree of biasing of both determined by matching to weather conditions in the area of use. In other embodiments the gates are , interconnected to the featherable blades for coordinated operation by means such as cables …
Read the whole patent
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
- Filed June 8, 1995 and granted November 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.