Apparatus and method for making wood curls
CA 2132876 A1 · Owner: University Of Georgia Research Foundation Inc. · Inventors: Rice, James T. Sr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mechanized disc flaker for producing curled wood flakes having a rotatable disc plate (10), and one or more cutting knives (22) mounted to the disc plate so as to provide for a slight "rake angle" defined in accordance with the invention as the angle made between the tool face and a plane perpendicular to the direction of tool travel. In a preferred embodiment the apparatus includes, rotatable and removable knife holders (40) which permit the rake angle and the "cutting angle", defined in accordance with the invention as being the angle thecutting edge of the knife makes with the grain of the wood to be modified to yield, curled wood shavings have different geometries and characteristics. …
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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
- Filed March 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2015.
- 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.