Flexible coupling device
CA 2216271 A1 · Owner: Q.M. Bearings & Power Transmission Ltd. · Inventors: Yorston, Don Grimmond
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible coupling device to connect two substantially axially aligned shafts comprises coupling members mountable on the ends of each of the shafts. Each coupling member has a drive face for engagement with the opposed drive face of the other coupling member to provide a torque transmitting connection. Each coupling member is formed with a tubular flange extending away from the drive face having a constant inside diameter engageable with the shaft and a tapered outside surface tapering convergently as the flange extends away from the drive face. There is a ring member associated with each coupling member that has a tapered inner bore engageable over the tapered outside surface of 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
- Filed September 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- 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.