Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1999-01-29
2000-01-18
Hofsass, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340 58, 200 6125, 200 6126, 731463, 731465, 73754, 73755, 7386152, 1527521, B60C 2300
Patent
active
060161027
ABSTRACT:
An apparatus (10) allows atmospheric pressure into an environmentally sealed enclosure for creating an equilibrium that allows a sensor (28) make a proper measurement. A slot or opening (26) in the cover (14) exposes outside atmospheric air to a restricted portion of a gas permeable membrane (18). The membrane (18) allows a selected gas to pass through the membrane (18) creating the equilibrium in the housing (12). A gasket (16) positioned between the cover (14) and housing (12) seals the housing in an air tight manner except for the gases allowed in through the membrane (18). Pressure sensor (28) can then make a more accurate measurement. Apparatus (10) finds particular utility in a low pressure tire management system.
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Fortune G. Clark
Prainito John D.
Spring James K.
Waraksa Thomas J.
Eaton Corporation
Hofsass Jeffery A.
Johnston Roger A.
Kalka Daniel S.
Nguyen Tai Tan
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