Rotary tool
CA 2076344 A1 · Owner: Koeppen, Detlef · Inventors: Koeppen, Renate; Koeppen, Detlef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a rotary tool consisting of a drive hub (N) and an interchangeable tool sleeve (H) whereby the tool, sleeve (H) can be connected solidly in rotation with the drive hub (N) and has projecting engagement means on its outer circumferential surface for machining equipment. Here the drive hub (N), consists of a drive flange (1) and a securing flange (2) whereby on, the drive flange (1) axially on the outside is coaxially fitted a central motor connection (3) and at least one of the flanges (1 2) has at least one axial projection (A) axially on the inside. For each axial projection (A) there is an axially opposite second axial projection (A) or recess or aperture on the …
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 October 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.