Pneumatic pipeline transport system
CA 1189495 A · Owner: Vandersteel, William · Inventors: Vandersteel, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pneumatic pipeline transportation system for solid containerized cargo. Cargo carrying vehicles are propelled within a hollow guideway adapted to hold movable vehicles of substantially similar cross-section. Kinetic energy is applied to the vehicle intermittently, causing the vehicle to set a trapped column of air in the guideway in motion. The air column acts on adjacent vehicles, and in combination with the applied force, propels the vehicles through the guideway.
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 June 25, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2002.
- 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.