Diaphragm for pressure sensors

Details Diaphragm for pressure sensors Diaphragm for pressure sensors

1978-08-21

1980-12-09

Cohen, Irwin C.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 34, 92 45, 92104, F01B 1900, F16J 302, F16J 304

Patent

active

042377757

ABSTRACT:
A diaphragm consisting of multiple arches configured such that radial compliance is increased and pressure responsive radial compression loading will approximate radial tension loading resulting from deflection of an associated pressure sensor mechanism. On the pressure receiving side of the diaphragm, a broad shallow convex section extends between two concave sections of tighter curvature. The portions of the concave sections remote from the convex section each extend to a substantially cylindrical configuration. A sharp convex bend extending to a flat radial flange provides an attachment edge with minimum attachment stress. A method of forming such a diaphragm to insure uniform wall thickness by allowing maximum lateral migration of the diaphragm sheet is also disclosed.

REFERENCES:
patent: 2015374 (1935-09-01), Baker
patent: 2650618 (1953-09-01), Flubacker
patent: 2671833 (1954-03-01), Dunmyer et al.
patent: 2909364 (1959-10-01), Stedman
patent: 3072150 (1963-01-01), Hastings et al.
patent: 3079953 (1963-03-01), Mounteer
patent: 3802267 (1974-04-01), Lofink
patent: 3875802 (1975-04-01), Garnett et al.

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