Device for detecting and localizing a fault in an aerial ropeway transport installation
CA 1251535 A · Owner: Pomagalski S.A. · Inventors: Bertrand, Jean-Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety line 20 of an aerial ropeway transport installation 10 comprises in one of the stations a safety generating unit 22 which emits a square type AC signal on the line. In the opposite station the line 20 is earthed by means of a diode 24. The safety generating unit 22 includes a measuring device of the positive and negative voltages at the line terminals to distinguish between a line break and a line short-circuit. A localizer indicates the location of the fault. Operating on the apprenticeship principle, it enables greater accuracy to be obtained.
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 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.