Propulsion apparatus
CA 1232474 A · Owner: Dobos, Elmer M. · Inventors: Dobos, Elmer M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A platform supports a shaft assembly that extends upwardly in a direction perpendicular to the horizontal plane of the platform and through a disk mounted for rotation on the shaft assembly above the platform. The disk is rotated at a prese lected speed and carries on the circumferential edge portion thereof a plurality of liquid filled reservoirs spaced from one another completely around the circumference of the disk. Buoyantly positioned in each reservoir is a hollow piston having a piston rod extending outwardly from the reservoir. Mounted on the shaft assembly is an adjustably movable cam having a cam track eccentrically posi tioned with respect to the axis of the shaft assembly. 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 February 9, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 9, 2005.
- 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.