Steerable rotary device
CA 2228080 A1 · Owner: Martin, Merrill David · Inventors: Martin, Merrill David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steerable rotatable member such as a pulley sprocket or timing gear, which can be mounted on a shaft so that the plane of the rotatable member may be positioned at selected angles other than a 90° angle to the axis of rotation of the shaft. A torque transmitting member commonly in the shape, of a planar disc is used to operatively connect the shaft and the rim of the rotatable member. The disc radially elongates and laterally flexes as the rotatable member rotates. A sleeve member may be used to connect the disc to the shaft. When used as a driver a key may be used to transmit, power from the shaft to the sleeve. The use of an elongated groove in the shaft permits the rotatable member to …
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 January 28, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2020.
- 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.