Aqueous fuel for internal combustion engine and method of preparing same
CA 2187076 C · Owner: Gunnerman, Rudolf W. · Inventors: Gunnerman, Rudolf W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous fuel having at least two phases for an internal combustion engine with 20-80 vol. % water carbonaceous fuel, 2 to less, than 20 vol. % alcohol about 0.3 to 1 vol. % of a nonionic emulsifier and which may contain up to about 0.1 vol. % of a fuel lubricity enhancer, and up to about 0.03 vol. % of an additive to resist phase separation at elevated temperatures. The fuel has an external water phase and is substantially nonflammable outside the engine. Also disclosed is a method of producing the fuel which includes mixing the carbonaceous fuel and emulsifier together prior to mixing with water and the other components.
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
- Filed March 29, 1995 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2017.
- 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.