Tool unit clamping apparatus having a locking mechanism with increased gripping force
CA 2212882 C · Owner: Kennametal Inc. · Inventors: Erickson, Robert Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clamping apparatus (35) for detachably connecting a tool unit (10) to a tool supporter (37) with increased holding force is provided. The clamping apparatus (35) includes a housing (41) a pair of opposing locking spheres , (57a b) within the housing (41), a cylindrical canister member (39) mounted within the housing (41) that is matable with an insert-supporting tool unit (10) and which has a pair of opposing apertures (55a b) in its sidewalls for , conducting the locking spheres (57a b) from a locking to an unlocking , position and a lock rod (60) reciprocally movable within the interior of the canister member (39) along an axis (A) and having opposing cam portions (64a b) for …
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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 February 5, 1996 and granted November 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2018.
- 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.