Apparatus and method for producing calibration gases suitable for analytical instrumentation
CA 1104348 A · Owner: Mayeaux, Paul H. · Inventors: Mayeaux, Paul H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus, and method useful for blending predetermined accurately measured quantities of gaseous components transferred from separate pressurized supply tanks (A, B, C, D) to a gas blending system pre-, ferably on imput signals received from a computer. The gas blending system includes a mixing vessel, (20) a pressure transducer (19) associated with said vessel (20) for measuring the pressure of the gases, producing an output signal and transmitting same to the computer, a circulating pump (10) connected in series via conduits (11, 12, 13, 14, 13',14') which form a circuit and valves (15,---15N), preferably a multi-component valve assembly operatively communicating the two ends of 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
- Granted July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.