Oil well gas separator
CA 2197629 A1 · Owner: Gingell, David · Inventors: Gingell, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mixing device for the pump intake of an oil wee comprises a first tube and a second tube located inside the first tube with a plurality of apertures in thefirst tube at an upper end for taking up the oil sand and gas mixture and a, plurality of apertures in the second tube at a lower end for breaking up the sand particles in the oil and sand mixture. A region between the apertures in the first tube and the apertures in the second tube has no apertures in either the first tube or the second tube, said region being for separating the gas from the oil, sand and gas mixture. The apertures in the second tube have a diameter that is less than the diameter of the apertures in the first tube.
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 February 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2019.
- 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.