Delta p instrument for oxidation measurement
CA 1247883 A · Owner: Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resources Canada · Inventors: Dean, D. Michael; Mikula, Randy J.; Mikhail, Magdy W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for measuring .DELTA.P in coal is described which comprises: (a) a plurality of closed metallic coal sample cups; (b) a gas manifold flow connected to each of said sample cups by way of a separate electric valve and said manifold being connected to a source of methane by way of electric valve means and connectable to a source of vacuum by way of electric valve means; (c) a pressure transducer connected to said manifold and adapted to measure absolute gas pressure in the manifold and (d) pro-, cessing means adapted to actuate said valves to sequentially (1) introduce vacuum to evacuate the manifold and one or more sample cups; (2) introduce methane gas to the manifold and …
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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
- Granted January 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2006.
- 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.