Fluid displacement apparatus and method
CA 2310544 A1 · Owner: Morcom, Gary · Inventors: Thomas, Wayne; Morcom, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a, string of modular pipe assemblies having one or more passages for carrying production fluid, from the bottom of the well to the surface. The passages can be arranged in a side-by-side, configuration, and include pressure and return lines for driving the gear pump. The gear, pump includes a hydraulically driven motor that is ganged with a positive displacement gear, set. Both the motor and the pumping section have ceramic wear surfaces the , ceramic being, chosen to have coefficients of thermal expansion corresponding to the …
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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 June 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 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.