Measuring and testing – Fluid pressure gauge – With protective separator
Patent
1981-08-28
1983-11-15
Goldberg, Gerald
Measuring and testing
Fluid pressure gauge
With protective separator
73724, 73756, 361283, G01L 912
Patent
active
044148518
ABSTRACT:
An atmospheric differential pressure sensor is disclosed comprising a pressure transducer, having a diaphram, mounted within a two piece protective transducer housing. An ambient atmospheric pressure receiving cavity is formed by the housing and coupled to the transducer diaphragm by a pressure transmitting tube that has a isolating oil drop within the tube to keep atmospheric contaminants away from the diaphram. The atmospheric pressure receiving cavity has external openings extending peripherally over more than 180.degree. of rotation about a central axis of said housing, and the ambient cavity provides a non-linear directional path between the end of the tube connected to the cavity and the exterior of the housing.
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Chapman, Jr. John E.
Gillman James W.
Goldberg Gerald
Melamed Phillip H.
Motorola Inc.
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