Remote control for a reciprocating vehicle bed conveyor floor
CA 2094840 C · Owner: Ferguson, Robert P. · Inventors: Ferguson, Robert P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reciprocating conveyor being switchable between an operation mode and an interrupt mode by an RF remote control. An electric valve communicates between a hydraulic drive pump and a reciprocating switch valve to provide a bypass for a pressurized fluid. A hand held transmitter produces a signal which is received by a receiver. The receiver causes the actuation of the electric valve between open and closed positions.
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 26, 1993 and granted September 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2015.
- 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.