Liquid heating system for concrete plants
CA 1290322 C · Owner: Sinclair, Robert G. · Inventors: Norman, Robert D.; Sinclair, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water heating system for a concrete batching plant comprising a closed tank (1) having low heat transfer properties for containing the liquid to be heated a heat, exchanger having liquid carrying conduit means connected by conduits (2,3) to said tank (1), a first pump (3a) for circulating liquid from the tank (1) to the heat exchanger (4) while the liquid is being heated by said heat exchanger (4), a second pump for transferring the heating liquid from said tank to the concrete batching plant control means for, controlling the operation of said heat exchanger and said pumps and including means for monitoring the ambient temperature, the temperature of the water in the tank the, …
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 October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.