A device for dressing grinding wheels
CA 2256140 C · Owner: Sakcriska, Glenn · Inventors: Sakcriska, Glenn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for dressing a grinding wheel for the sharpening an ice skate blade. The device uses a housing surrounding a grinding wheel and movable frame with a swing arm. A dressing tool is mounted in the dresser swing arm and the dresser swing arm is rotatable between a storage position and an operating position. The movable frame slides to allow positioning of the dressing tool into the grinding wheel. The movable frame has side shafts to slide the frame along the housing. Blocks having bearings hold the shafts in position. The bearings operate against the shafts to facilitate the movement of the movable frame. The shafts are spaced apart by yokes on the arm or a bar across the top of 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 December 16, 1998 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2020.
- 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.