Impact kerfing rock cutter and method
CA 1338290 C · Owner: Coski Enterprises, Ltd. · Inventors: Coski, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low velocity, high mass ram is connected to the cutting tool. The cutting tool has an array of impact forward and side buttons or bars which form chip-forming spaces therebetween. The impact cutting tool has front impact breaking surfaces and impact side breaking surfaces protruding at an angle to the impact face and extending laterally of the impact face and beyond the cutting tool side wall for cutting a kerf width wider than the cutting tool side wall. The side buttons or bars advantageously cut a gage in the slot. A method of slot kerfing which cuts the kerf on an angle is disclosed.
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 April 30, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2013.
- 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.