Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2006-12-05
2006-12-05
Noori, Max (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
Reexamination Certificate
active
07143651
ABSTRACT:
A pressure sensor comprises a housing having a pressure introduction hole, a pressure detecting element formed of a semiconductor device having the piezoelectric resistance effect, a holder for fixing the pressure detecting element, and a connector case. The pressure detecting element and the holder are airtightly joined to form a pressure sensor body in which an interior space is defined. A circuit board having an electrode pad is provided on the holder of the pressure sensor body, and a connector in the connector case and the electrode pad are connected by means of an electrically conductive spring body having elasticity. The holder is supported in the housing by means of a guide frame and an O-ring.
REFERENCES:
patent: 5257546 (1993-11-01), Tobita et al.
patent: 6148673 (2000-11-01), Brown
patent: 6176137 (2001-01-01), Sasaki et al.
patent: 6457368 (2002-10-01), Sasaki et al.
patent: 6484589 (2002-11-01), Brock
patent: 6612791 (2003-09-01), Haimer
patent: 2002-333377 (2002-11-01), None
Okura Isao
Sasaki Keiji
Fujikoki Corporation
Noori Max
Rader & Fishman & Grauer, PLLC
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