Chipper
CA 1056277 A · Owner: Toyo Pulp Co. · Inventors: Hanaya, Morimasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A chipper comprised of a disk body, a driving shaft mounted on the disk body for rotating it and at least one spout connected with the casing and a plurality of cutting blades located on the disk body along at least one spiral path extending from the center to the periphery of the disk body, each of said cutting blades having main and auxiliary cutting edges which are positioned and connected angularly to each other said, main cutting edge being inclined to the surface of said disk body with such an angle that one end of said main cutting edge is positioned at height corresponding to the thickness of chips to be cut with the connecting edge between said main edge …
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
- Granted June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
- 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.