Trackside door closing arrangement for railway hopper cars
CA 1069383 A · Owner: Pullman Incorporated · Inventors: Miller, Roy W.; Nagy, Ernest J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a trackside operating mechanism for use with a railway hopper car having a longitudinally extending discharge door hingedly mounted on the car for movement laterally outwardly from closed to open position relative to a discharge opening thereof. The trackside operating mechanism includes a base positioned to one side of a railway track, an upright pedestal mounted on the base, a horizontal arm pivotally mounted on the base for swinging movement on a vertical axis wheel means, including a pair of wheels longitudinally spaced on the arm for pivotal movement about a respective vertical axis. Means are connected to one wheel for imparting rotation of this wheel to the other wheel, …
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.