Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2006-12-29
2008-08-12
Thompson, Jewel V (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
Reexamination Certificate
active
07409865
ABSTRACT:
A diaphragm structure with a first substrate including a first surface with an annular groove therein and a second opposing surface with an annular groove on each side of annular groove in the first surface defining a first diaphragm. A second substrate also includes a first surface with an annular groove therein and a second opposing surface with an annular groove on each side of the annular groove in the first surface defining a second diaphragm. A diaphragm overload stop is located behind the first and second diaphragms.
REFERENCES:
patent: 4089036 (1978-05-01), Geronime
patent: 1273896 (2003-01-01), None
U.S. Appl. No. 11/241,049, filed Sep. 30, 2005, Kanakasabapathi, Subramanian.
GE Global Patent Operation
General Electric Company
Thompson Jewel V
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