Diaphragm for a diaphragm valve

Details Diaphragm for a diaphragm valve Diaphragm for a diaphragm valve

2006-01-23

2009-12-22

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

C092S1030SD

Reexamination Certificate

active

07634962

ABSTRACT:
A diaphragm for a diaphragm valve in particular for liquid fluids includes a backing membrane and a primary membrane which are supported by a central connection pin. Disposed axially between the backing membrane and the primary membrane is a reinforcing element.

REFERENCES:
patent: 1473173 (1923-11-01), Brinkerhoff
patent: 2710629 (1955-06-01), Price
patent: 2724398 (1955-11-01), Higgins et al.
patent: 4208031 (1980-06-01), Jonak
patent: 4327891 (1982-05-01), Allen et al.
patent: 4881876 (1989-11-01), Laziou

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