Gauge pressure sensor for hazardous applications

Details Gauge pressure sensor for hazardous applications Gauge pressure sensor for hazardous applications

2006-12-19

2006-12-19

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

With protective separator

Reexamination Certificate

active

07150194

ABSTRACT:
Methods and apparatus for sensing a gauge pressure use a pressure gauge pressure sensor that includes a housing and a gauge pressure sensing element having a first pressure inlet and a second pressure inlet. The first pressure inlet is associated with a pressure to be measured and the second pressure inlet is associated with an atmospheric pressure. A flame arrestor disposed within the sensor housing fluidly couples the second pressure inlet to an internal portion of an explosion proof device.

REFERENCES:
patent: 4563902 (1986-01-01), Kohnlechner
patent: 4970898 (1990-11-01), Walish et al.
patent: 5287746 (1994-02-01), Broden
patent: 5439021 (1995-08-01), Burlage et al.
patent: 5524492 (1996-06-01), Frick et al.
patent: 5948988 (1999-09-01), Bodin
patent: 60080749 (1985-05-01), None
patent: WO2004/088267 (2004-10-01), None

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