Conical gripping arrangement
CA 2116991 C · Owner: Mullenberg, Ralph · Inventors: Mullenberg, Ralph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A conical gripping arrangement (100) serves for attaching a construction component (4) with a hub (10) onto a shaft (1). The hub (10) possesses a conical external peripheral surface (16) on which a graduated conical ring (13) with a conical internal peripheral surface (17) is arranged. Another conical internal peripheral surface (21) rests against a conical external peripheral surface (23) of a conical section (7) of a conical casing (20) which engages with a cylindrical casing section (6) resting on the shaft (1) in a cut away section (11) of the hub (10) and is clamped there together with the hub (10).
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 March 4, 1994 and granted May 5, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2016.
- 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.