Cutter elements for hollow drill bit
CA 1314282 C · Owner: Hilti Aktiengesellschaft · Inventors: Ritt, Walter; Magyari, Eugen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow drill bit is formed of an axially extending tubularly-shaped support member with cutter elements inserted into the leading end of the support member. Each cutter member has a radially outer surface and a radially inner surface with channels in each surface inclined relative to the axis of the support member. The channels carry a flowable cooling agent to the leading end of the drill bit and remove, drillings produced by the bit from the leading end.
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 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.