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Yat S Chan, Anthony D S Tantram, Bryan S Hobbs, John R Finbow: Gas sensor. Coal, Stevens Davis Miller & Mosher, September 27, 1983: US04406770 (52 worldwide citation)

A gas sensor cell assembly has planar electrodes separated by a planar hydrophilic wick which extends through the electrode into an electrolyte expansion chamber where it contacts an electrolyte. The cell is extremely compact and operates in all orientations.


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Anthony D S Tantram, Michael J Kent, Alan G Palmer: Gas sensor. City Technology, David A Burge Co, January 2, 1979: US04132616 (44 worldwide citation)

An electro-chemical sensor for the measurement of concentrations of gas or vapor in accordance with the limiting current principle and comprising an electrolytic cell having a sensing electrode, a counter electrode and an intervening body of electrolyte and also a restriction to the rate of access o ...


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Anthony D S Tantram, Yat S Chan: Gas sensor. City Technology, Sughrue Mion Zinn Macpeak and Seas, January 6, 1987: US04633704 (33 worldwide citation)

The housing 1 of a gas sensor carries a diffusion barrier 2 for restricting the access of gas to the sensing element 4 and a filter 3 mounted between the diffusion barrier 2 and the sensing element 4. As a result, gas reaching the filter 3 must first pass through the diffusion barrier 2 so that its ...


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Anthony D S Tantram, Yat S Chan: Gas sensor. City Technology, Solon B Kemon, May 6, 1986: US04587003 (30 worldwide citation)

An electro-chemical cell has porous sensing and counter electrodes S, C mounted on porous PTFE tapes 4, 5 and contacting the electrolyte of the cell which is drawn from a reservoir by a wick 12. Gas passes directly to the electrode S at 14 and any gas which does not react passes through the electrod ...


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Anthony D S Tantram, Yat S Chan: Gas sensor. City Technology, Sughrue Mion Zinn Mackpeak & Seas, April 13, 1982: US04324632 (26 worldwide citation)

An electro-chemical sensor for the measurement of concentrations of gas or vapour in accordance with the limiting current principle comprises an electrolytic cell 1 having a sensing electrode 9, a counter electrode 2, an intervening body of electrolyte 4 and a restriction to the rate of access of ga ...


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Anthony D S Tantram, Bryan S Hobbs, John R Finbow, Yat S Chan: Gas sensor. City Technology, Sughrue Mion Zinn Macpeak & Seas, October 2, 1984: US04474648 (26 worldwide citation)

An electro-chemical cell for quantitatively detecting an acidic or an alkaline gas, e.g. carbon dioxide, includes a sensing electrode 9 which is connected to a top cap 12 by a contact strip 8 and is accessible to the gas to be tested through a hole 13. The electrode 9 comprises an electro-chemical c ...


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Anthony D S Tantram, Jonathon H Gilbey: Gas calibration method and apparatus. City Technology, Stevens Davis Miller & Mosher, May 16, 1989: US04829809 (10 worldwide citation)

A gas calibration method providing an absolute standard for the determination of an active gas in a gas mixture, comprises passing the gas mixture into a chamber (1) of known volume. The chamber contains a galvanic sensor ( b 2) providing a signal current, proportional to the rate of reaction of the ...


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Anthony D S Tantram: Diffusion measurement. City Technology, Stevens Davis Miller & Mosher, March 28, 1989: US04815316 (8 worldwide citation)

The diffusibility or permeability of a sample of material (6) is determined by mounting the sample in the wall of a chamber (1), having an electrochemical gas sensor (4) fitted therein. If a differential pressure is applied across the sample, and output signals from the gas sensor are recorded at le ...


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Anthony D S Tantram: Flammable gas detection. City Technology, Stevens Davis Miller & Mosher, December 10, 1991: US05070721 (7 worldwide citation)

An oxygen sensor (1) with an inlet (2) connects with a small chamber (3). An inlet provided with a diffusion barrier (4) permits flammable gas and oxygen to enter the chamber. The oxygen concentration within the chamber is low, and a catalytic element (5) within the chamber causes combustion of flam ...


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