A method and system for steering and guiding a drill
CA 2201058 A1 · Owner: Daneshmend, Laeeque K. · Inventors: Amjad, Muhammad; Daneshmend, Laeeque K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system is disclosed for steering a rotatable drill bit in a percussive drilling system by rotating the rotatable drill bit while applying a percussive force to the drill bit and, varying percussive force exerted such that while sweeping through two equal angles defining two non-overlapping regions within one full rotation of the drill bit the total percussive force applied, while sweeping through each of the two equal angles is unequal. Varying the percussive force may be performed by varying the number of percussions while sweeping through two equal angles defining two non-overlapping regions within one full rotation by increasing and decreasing, rotational speed of the drill …
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
- Filed March 26, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2019.
- 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.