Woodworking machine, such as a traversing sanding machine
CA 2083050 A1 · Owner: Hh Patent A/S · Inventors: Hunderoel, Keld O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
On woodworking machines of the traversing type for example those, used for sanding operations the items (23) are secured on a, vacuum conveyor (3). When the items are not perfectly plane or when, the contact surface against the conveyor is small the holding, power is often not suffcient to allow satisfactory processing operations to be effected without the time-consuming use of devices such as clamping tools or the like. In order to overcome this disadvantage, the machine according to the invention is provided with a number of compressed air nozzles (10) which direct a stream of air towards the items (23), whereby there is achieved a hitherto unknown degree of good retention, even of items …
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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 May 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2013.
- 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.