Diaphragm and fabrication method thereof

Details Diaphragm and fabrication method thereof Diaphragm and fabrication method thereof

1984-11-05

1988-01-19

Nilson, Robert G.

Valves and valve actuation

Reciprocating valve

Diaphragm

251 611, 251368, F16K 31126

Patent

active

047200790

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.

REFERENCES:
patent: 2707481 (1955-05-01), McPherson
patent: 4141379 (1979-02-01), Manske
patent: 4395462 (1983-07-01), Polmanteer

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