Combination diaphragm and valve body

Details Combination diaphragm and valve body Combination diaphragm and valve body

1989-11-24

1991-07-02

Look, Edward K.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 98D, 92 99, F01B 1902

Patent

active

050276930

ABSTRACT:
The combination diaphragm and valve body comprises a plastic vacuum booster valve body (32) which has molded integrally therewith via living hinges (34) a plurality of diaphragm arms (36). The diaphragm arms (36) may be disposed initially in a position substantially parallel to a longitudinal axis (A) of said valve body (32). The diaphragm arms (36) are pivoted to a position substantially orthogonal relative to the longitudinal axis (A) of the valve body (32) and ultrasonically welded to the valve body (32). Each of said diaphragm arms (36) includes a plurality of radial openings (38) at a radial end (39) thereof for receiving a metal connection member (40). The metal connection member (40) is snap-fitted into associated radial openings (38) in the diaphragm arms (36), and a diaphragm (50) is compression molded about the valve body (32) and over the surface of the diaphragm arms (36). The diaphragm arms (36) may be manufactured separately and then welded to the valve body (32).

REFERENCES:
patent: 3183789 (1965-05-01), Stelzer
patent: 3385167 (1968-05-01), Wilson et al.
patent: 3387540 (1968-06-01), Wilson
patent: 4050358 (1977-09-01), Humberstone et al.
patent: 4339990 (1982-07-01), Riedel
patent: 4393749 (1983-07-01), Miyazaki

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