Tube car, network of tubes, personal transport system, and control system and control method thereof
CA 2745803 C · Owner: Yang, Nanzheng · Inventors: Yang, Nanzheng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a personal transport system comprising a plurality of tubes forming a tube network wherein the , tubes include a normal-air-pressure low-speed tube which is filled with air having normal air pressure, and a low-air-pressure high-speed tube which is evacuated or filled with air having reduced air pressure. A pressure-transforming stopcock is provided which connects the normal-air-pressure low-speed tube with the low-air-pressure high-speed tube in such a manner as to enable the tube car to run from the normal-air-pressure low-speed tube into the low-air-pressure high-speed tube and to enable the tube car to run from the low-air-pressure high-speed tube …
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 April 14, 2006 and granted February 11, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2026.
- 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.