Method and apparatus for securely adding an additive to a fluid
CA 2441222 A1 · Owner: Mooney, Brian Francis · Inventors: Mooney, Brian Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method and apparatus of the invention may be used to add additive such as , dye, to a fluid such as fuel by means of a pump (8) and a duct (4, 5) through which the fuel flows. The pump (8) is operable to add dye to the fuel in discrete or regularly varying amounts. A light beam is generated by light emitter (16), enters inspection chamber (12) where the dye is added and exits the chamber (12) where it is received by external receiver (17). The light emitter (16) and receiver (17) are connected to a light sensor (15) which is operable to detect one or more types of change in a characteristic of the light beam when it is passed through the fuel.
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 October 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2022.
- 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.