Single-lip drilling tool
CA 1296930 C · Owner: Stellram S.A. · Inventors: Grunsky, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A single-lip solid drilling tool has a onepiece shank with an integral head having a radially or diametrically extending groove for a blade with an eccentric tip. The blade is held in its groove by several clamping screws so that it can be removed for sharpening or for replacement with a fresh blade. One or both lateral portions of the blade extend beyond the periphery of the head to guide the tool in actual use. The shank has an eccentric coolant hole whose discharge end is adjacent the blade and which is formed by providing a short cylindrical hard-metal blank with an eccentric axially parallel bore before the blank is stretched to reduce its diameter to a requisite value and to …
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 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.