A trailer for a tunnel borer follower train
CA 2373000 A1 · Owner: Sabatie, Jean-Marc · Inventors: Padovanni, Jean-Yves; Sabatie, Jean-Marc; Daugenne, Frederic
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 trailer for a tunnel borer follower train. The trailer (10) comprises a chassis (12) provided with a plurality of wheels said, chassis at rest presenting a longitudinal axis (XX') and a longitudinal plane of symmetry that is vertical. The trailer also comprises at least two tanks (30 32), mounted on the chassis substantially symmetrically about the longitudinal plane of symmetry of the chassis; means for measuring any tilt of the chassis of the trailer about its longitudinal axis (XX'); means (60 68, 70) for, feeding both tanks with liquid; and means (38a 38b) for, controlling the quantity of liquid in each of the tanks as a function of any measured tilt in such a …
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 February 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2024.
- 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.