Diaphragm and fabrication method thereof
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United States of America Patent
Stats
-
Jan 19, 1988
Grant Date -
N/A
app pub date -
Nov 5, 1984
filing date -
May 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A diaphragm is formed of a valve member made of a peroxide-curable fluorine-contained rubber and a deformable member made of a fluorosilicone rubber and bonded integrally with the valve member owing to simultaneous curing thereof. It may be fabricated by placing a peroxide-curable fluorine-contained rubber material and a fluorosilicone rubber material in a mold; and then heating and molding the materials simultaneously, thereby bonding the resulting valve member and deformable member into an integral part. A rigid plate may be embedded between the valve member and deformable member. The diaphragm enjoys a low fabrication cost and assures good airtightness without failure.
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