Quick-clamping device
CA 2030044 C · Owner: Pela Werkzeuge Ag · Inventors: Landtwing, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A quick-clamping device is described, operated by centrifugal force, for clamping a disposable reversible blade to the cutter head or the cutter shaft of a planing machine. According to the invention the quick-clamping, device is characterized by a centrifugal clamping wedge having a cross-sectional configuration similar to an inverted T-shape. For clamping a disposable reversible, blade, the centrifugal clamping wedge is disposed in a groove, having substantially the same configuration of , rotatable tool base body, and is supported in resilient manner against the groove bottom.
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 November 15, 1990 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2012.
- 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.