Elliptical shearing apparatus
CA 1289055 C · Owner: Borzym, Alexander · Inventors: Borzym, Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shearing apparatus for bar stock comprising a fixed die and a movable die wherein the movable die comprises a shearing ring carried by an arm at a location intermediate the ends of the arm an eccentric, fixed on a driven shaft is journalled in one end of the arm and the other end of the arm includes a slot which receives a rotationally mounted slide block so that the slot and slide block coact to accommodate combined rotary and translatory movement of that end of the arm. The described arrangement produces an elliptical loop movement of the movable die relative to the fixed die to cleanly shear the stock. Also disclosed is a novel mandrel assembly including a pair of plug members adapted …
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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
- Granted September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.