Metal working – Method of mechanical manufacture – Electrical device making
Patent
1991-08-16
1993-10-26
Woodiel, Donald O.
Metal working
Method of mechanical manufacture
Electrical device making
29595, 73727, 264 56, 264 60, 338 4, G01R 300
Patent
active
052554279
ABSTRACT:
A hollow body integrally formed of ceramic material and comprising a cavity formed therein and an integral connecting joint including a passage to said cavity at least one side of said cavity being confined by a diaphragm integral thereto. The ceramic hollow body may be produced by merging two green individual parts together followed by burning, the individual parts having large complementary contact surfaces with each other.
REFERENCES:
patent: 4984468 (1991-01-01), Hafner
Pfister GmbH
Woodiel Donald O.
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