Chain tension adjustment device and chip treatment device equipped with chain tension adjustment device
CA 2308936 A1 · Owner: Bunri Industries, Ltd. · Inventors: Tashiro, Makoto; Tashiro, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The chip treatment device 100 comprises a housing 110 and, a chain 130 having scraper unit 134 equipped in the housing 110, and conveys chip from a chip entrance 122 to an exit 124. A driving sprocket 140 for the chain is driven by a driving shaft 142. A chain tension adjustment device 200 provided near the driving sprocket 140 has a nut 220 fixed to the housing 110, and a bolt 230 screwed onto the nut 220. A pressurizing plate 210 provided to the tip of the bolt 230 presses the chain and thereby regulates tension.
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 May 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2022.
- 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.