Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor
CA 2085225 A1 · Owner: Meyerle, George M. · Inventors: Meyerle, George M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electromagnetically-driven punch press having an electromagnetic drive thrust motor comprising a fan-cooled solenoid winding and movable armature mounted in an elevated location arranged for (a) isolating the magnetic circuit from the die set tooling (b), isolating electrical heating of the coil from the tooling (c), positioning the coil and armature in an elevated location where they are readily accessible, (d) enabling convenient adjustment of: stroke length, "open" height and "shut" height (e) enabling easy , adjustment of the armature position (f) providing four-way, access to the tooling (g) freeing the bottom of the punch press (h) , enabling multiple electromagnetic drive motors …
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 June 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2013.
- 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.