Device for grinding curved surfaces on objects
CA 1329705 C · Owner: University Of British Columbia · Inventors: Ghomshei, Morteza Mohiekkin; Ghomshei, Morteza Mohiekkin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DEVICE FOR GRINDIlNG CURVED, SURFACES ON OBJECTS ABSTRACT OF THE INVENTION, This invention relates to a device for grinding rocks and other articles into round shapes or shapes with curved surfaces. The device can be mounted on a standard rock cutting wheel saw to thereby convert the wheel saw into a shape making apparatus. The device enables objects to be ground into curved shapes using a circular planar cutting wheel which comprises: (a) a base having a curved plane and mountable on the table of a cutting wheel; and (b) a rotatable shaft disposed relative to the base, and movable along the curved base the shaft supporting a, holder which is adapted to hold the object that is to be ground …
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
- Granted May 24, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2011.
- 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.