Method and device for continuously informing the operator of a tunnelling machine on physical features of a ground to be tunnelled
CA 2579530 C · Owner: Derycke, Jean-Noel · Inventors: De Broissia, Michel; Derycke, Jean-Noel; Moulin, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for informing the operator of a tunnelling machine on physical features of a ground to be tunnelled consisting in placing one or several sensors (1-4) directly on each cutter wheel of a drill head wherein said sensors are selected such that they are capable of transmitting representative signals of the cutter wheel penetrating force into the ground a rotating state, the position and the temperature of the cutter wheel and in transmitting said information to the operator of the tunnelling machine. Said invention is particularly suitable for detecting hard rocks during digging an excavation by means of a tunnelling machine.
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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 September 7, 2005 and granted January 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.