Expanding collet assembly for pick-off spindle
CA 2496788 A1 · Owner: Roberts, Matthew C. Jr. · Inventors: Roberts, Matthew C. Jr.; Smith, Roger R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An expanding, inner diameter gripping collet assembly (10) for a pick-off spindle. An arbor base (18) is connected to the pick-off spindle (12) and is moveably connected to a moveable arbor (16). The moveable arbor (16) engages and is driven by the pick-off spindle nose (14). The moveable arbor (16) has motion-translating cam surfaces (65) on one end that engage corresponding surfaces on one end of an expanding collet (26). A drawplug (20) having motiontranslating cam surfaces (70) that engage corresponding ones (68) on the other end of an expanding collet (26) is inserted through the moveable arbor (16) and secured into the arbor base (18). The collet assembly (10) also includes an …
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 December 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2024.
- 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.