Field serviceable mining cable coupler
CA 2122395 A1 · Owner: Forshaw, David R. · Inventors: Patton, Greg E.; Forshaw, David R.; Peare, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mining cable coupler has a hollow, cylindrical body. There is an entrance fitting for an electrical cable at a first end of the body. A plate-like insulator mount extends over the body near the second end and has insulator receiving apertures with annular recesses extending thereabout and inwardly from the second end of the body. There is a plurality of separate, tubular insulators. Each insulator has an annular outer projection extending thereabout and received within one of the recesses of the insulator mount. There is an annular seal fitted between each recess and the insulator therein. There is an elongated electrical contact within each insulator. A metal member has a tube extending …
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 April 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2016.
- 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.