Guidewire controls for a manned, material handling vehicle
CA 2116459 C · Owner: Simmons, James M. · Inventors: Day, Richard M.; Hellmann, Christopher J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention features a universal manned, material handling vehicle. The material handling vehicle is capable of operating in a manned mode a wire guidance mode, and a rail guidance mode. This manned material handling vehicle contains a steering management control system having a logic program which allows the vehicle to adapt itself to different wire control systems. That is particular parameters, frequency and amplitude of the underlying wire guidance system can be determined. In this manner the manned vehicle is universally adaptive to a wide variety of wire guidance systems. When in manned operation mode should the vehicle receive a wire guidance signal the system controller …
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, 1994 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2016.
- 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.