Heated railway tank car
CA 1215585 A · Owner: Loevinger, Richard P. · Inventors: Loevinger, Richard P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sloped heat exchange element is sealingly mounted above the bottom of the tank of a railway tank car adjacent each end of the tank. Each heating element is thermally isolated from the tank cradles and bolsters which, detrimentally act as heat sinks in conventional heated tank cars. The sloped heat exchangers can be manufactured into the car or retrofit into tank cars not previously having heat coils or they can be retrofit into tank cars having either internal or external heating coils.
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 December 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 2003.
- 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.