Electrical resistors – Resistance value responsive to a condition – Fluid- or gas pressure-actuated
Patent
1981-08-28
1983-09-27
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Fluid- or gas pressure-actuated
H01L 1010
Patent
active
044069936
ABSTRACT:
An oil filled pressure transducer has a housing which has a top peripheral flange defining a recess. The housing has a plurality of tapered apertures directed from the top surface within the recess to a bottom surface with the diameter of each aperture being larger at the top surface than at the bottom surface. A separate terminal pin is located in each aperture and is bonded to the header by means of a glass bond which insulates the pin from the header. A metal diaphragm is coupled to the peripheral flange and a pressure sensor is located within the recess. The pressure sensor has terminals connected to the pins located in the tapered aperture. The recess is filled with oil for coupling pressures or forces imparted to the metal diaphragm to the sensor. The tapered apertures allow the unit to withstand high pressures which normally would cause the pins to rupture or dislodge from the housing.
REFERENCES:
patent: 2577576 (1951-12-01), Glickman
patent: 3753196 (1973-08-01), Kurtz
Albritton C. L.
Kulite Semiconductor Products Inc.
Plevy Arthur L.
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