Grain car loading system
CA 2105153 A1 · Owner: Chabot, Leopold J. P. · Inventors: Chabot, Leopold J. P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a prairie grain elevator car loading system it is known to have a spout on the, track side outside wall with flex sections at the bottom to direct the telescoping spout into the grain car. In this invention a dead head valve and/or a "K" valve, has the dead head valve or "K" valve (the "K" valve system can be used for loading box cars and/or hopper cars) rotating 180 degrees on bearings at the top and thebottom end and is situated at the bottom of the wall spout to direct product through a telescoping spout to hopper cars and through flexes at the bottom end of the "K" valve to direct product to box cars. Where the loading spout is inserted at the top of the dead head valve and "K" valve …
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 October 18, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 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.