Improved collet and method for optimizing gripping action thereof
CA 2122155 A1 · Owner: Kanaan, Roger J. · Inventors: Kanaan, Roger J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method (70) for manufacturing a machine tool collet (10) and a machine tool collet (10) having design parameters optimized to maximize its gripping strength. The collet (10) is of the type having a plurality of gripping jaws (16) spaced around a longitudinal axis (18) with resilient material between the jaws (16). The method (70) includes calculating the total torque generated on a bar passing through the collet (10) for a given collet configuration, including the torque generated just prior to a toggle condition occurring between the jaws (16) and the bar and the maximum moment force generated at a toggle condition. At least one of the design parameters of the collet (10), such as jaw …
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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 July 29, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2015.
- 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.