Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Reexamination Certificate
2007-10-23
2007-10-23
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
Reexamination Certificate
active
10514144
ABSTRACT:
An infrared sensor for gas metering appliances consisting of a metering chamber with an infrared source and an infrared sensor. The metering chamber is connected to the atmosphere via an anti-dust and anti-damp filter. The metering chamber is arranged in a protective housing having gas inlets and outlets. Connection to the metering chamber via a gas exchanger orifice and an anti-dust and anti-damp filter is not of a pressure-proof design based on normal pressure conditions. The infrared source and the infrared detector are integrated in the wall of the metering chamber and held therein. The infrared source is a lamp. The infrared source and infrared detector have a fail-safe power supply.
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Malevic Djura
MSA Auer GmbH
Porta David
Wood Phillips Katz Clark & Mortimer
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