Power unit for converting heat to power
CA 1280899 C · Owner: Edwards, Thomas C. · Inventors: Edwards, Thomas C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transportable, frame mounted power unit for converting heat from a low-grade energy source to electric power. Heat from a source is supplied to the power unit in the form of hot fluid circulated through a heat exchanger associated with a boiler. Liquid refrigerant in the boiler is vaporized and passes through the stages of an organic Rankine cycle, the expansion stage being carried out in a rotary, positive displacement expander. The condensing stage is carried out in a condenser associated with a cold heat exchanger which is connected to a supply of cooling fluid through cooling lines. The output shaft of the expander is connected to drive an electric power generator and individual fluid …
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 March 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 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.