Molten metal shaft coupling system
CA 2506558 A1 · Owner: Gilbert, Ronald E. · Inventors: Gilbert, Ronald E.; Klepacki, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molten metal pump shaft coupling system for use in the coupling or connection of elongated shafts to other components and equipment and for the , disconnection thereof. A coupling (100) with internal discontinuous threads (105) may be coupled with an externally threaded shaft with either continuous , or discontinuous threads. Aspects of the invention include multiple external threads which may be pitched to accomplish a quicker and more efficient disconnect system. Furthermore, a shaft removal system is provided which provides two points of contact to assist in rotating a broken shaft end out of a coupling (100).
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 December 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2025.
- 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.