Gate operating mechanism for a hopper car
CA 1058014 A · Owner: Pullman Incorporated · Inventors: Adler, Franklin P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bottom dump railway car includes gravity biased gates which are moved outwardly to an open position. Each gate includes an outwardly projecting arm having a cam follower mounted thereon. Track side cams are engaged by the cam followers which engage cam surfaces extending diagonally upwardly and arcuately outwardly so as the car travels along the cams the doors are moved outwardly to open 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
- Granted July 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 1996.
- 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.