Drill grinding device
CA 1049789 A · Owner: Mazoff, Joseph · Inventors: Mazoff, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A device for positioning, holding and feeding twist drills and the like to a grind stone to grind the bevels of the faces of the drill accurately and symmetrically is disclosed. A drill locking means has a bed for holding the drill and a fence to restrain it in one direction. A finger which has means forming an inclined plane on one side and which comes to a point near the fence is carried by the bed. The flute trailing edge of the drill engages the inclined plane at various points depending on the drill size. The force of the grind stone rotates the flute trailing edge against the inclined plane. There is also an adjustable drill stop to provide longitudinal …
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 March 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 1996.
- 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.