Apparatus and method for grinding composite workpieces
CA 2335626 A1 · Owner: Cinetic Landis Grinding Limited · Inventors: Locker, Ian David; Laycock, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grinding machine has a wheelhead (30) movable under computer control perpendicular to the axis of a composite workpiece mounted between a , headstock (16) and a tailstock (20) and workrests (36 to 42) slidable along front and rear rails (128, 126). Between the workrests are sandwiched rigid cover-spacers (50 to 58) to protect the rails and prevent lateral movement of the workrests. A spring-operated thrust bar (60) may be supported against a fixed dressing wheelhead (14) to clamp the stack of cover-spacers and workrests together, in order to accurately locate and space apart the workrests.
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 June 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2021.
- 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.