Chipping control device and disc chipper
CA 2107250 C · Owner: Klaavu, Aaro · Inventors: Klaavu, Aaro; Kalliokoski, Alpo; Tahkanen, Hannu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chipping control device (9) to be, mounted on a disc chipper and a disc chipper for keeping the piece size of, the chips (8) removed from the wood (1) with a chipper blade (6) uniform. The, chipping control device (9) is mounted on the outer surface of the blade disc (4) on the opposite side of the blade, (6) such that the control device (9) when using the chipper, contacts the, chips (7 8) leaving the chipping open-, ing (13).
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 September 29, 1993 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 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.