Air cushion vehicle
CA 1056879 A · Owner: Evans, Carmi G. · Inventors: Evans, Carmi G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vehicle, primarily a marine vessel, but also adaptable for travel over snow or ice, which is supported and propelled by air flow through a channel in the underside of the body. An impeller in a duct in the forward end of the vehicle provides the air flow which can be, deflected rearwardly, downwardly and forwardly and varied laterally for full control of the vehicle. The air flow channel is divided into a central channel and high speed side channels by longitudinal curtains the side, channels conducting air to steering vanes and rudders at the rear of the body. Trim rudders also extend across the rear of the channel to control lift and roll at the rear of the vehicle. In one form the …
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
- Granted June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.