Pressure sensor having a metal diaphragm responsive to pressure

Details Pressure sensor having a metal diaphragm responsive to pressure Pressure sensor having a metal diaphragm responsive to pressure

2006-10-17

2006-10-17

Thompson, Jewel V. (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

Reexamination Certificate

active

07121144

ABSTRACT:
A pressure sensor is composed of a cylindrical connector case firmly connected to a housing and a pressure-detecting chamber formed between the connector case and the housing. The pressure-detecting chamber is confined by a metal diaphragm, an outer peripheral portion of which is firmly held at a portion connecting the connector case and the housing. A relatively thick ring plate is connected to a mounting surface of the housing, and the outer peripheral portion of the metal diaphragm is sandwiched between the ring plate and a pushing plate placed on and connected to the ring plate. Thus, the pressure-detecting chamber containing a sensing element therein is surely sealed even if the housing is made of a material, such as aluminum, which is different from that of the metal diaphragm.

REFERENCES:
patent: 4056009 (1977-11-01), Sonderegger et al.
patent: 5436202 (1995-07-01), Miura
patent: 5595939 (1997-01-01), Otake et al.
patent: 5627321 (1997-05-01), Korhonen et al.
patent: 2002/0020222 (2002-02-01), Schmidt et al.
patent: A-15-294564 (2003-10-01), None
Notice of Reasons for Rejection from Korean Patent Office issued on Apr. 25, 2006 for the corresponding Korean patent application No. 10-2004-0117260 (a copy and English translation thereof).

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