Tool coupling
CA 1291649 C · Owner: Von Haas, Rainer · Inventors: Von Haas, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool coupling for connecting a tool head to a tool holder to secure the tool head against rotation and provide axial prestress. The tool head, which serves as a cutting tool, includes a shank having at least a portion which is conically configured, a threaded bore, and an annular contact collar. The tool holder includes a sleeve-shaped receiving bore corresponding to the shank, at least a portion of the receiving bore being conically configured a tightening, screw, and an annular contact face. An additional bore in the shank of the tool head ensures a prestress between the shank and the tool carrier including the receiving bore and, such prestress is not entirely relieved even if lateral …
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
- Granted November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- 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.