Clamping arrangement for diaphragm-type piston

Details Clamping arrangement for diaphragm-type piston Clamping arrangement for diaphragm-type piston

1984-11-13

1987-05-19

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

92 96, 92 99, 137510, 403 50, F16J 302, F16J 306

Patent

active

046661662

ABSTRACT:
A diaphragm-clamping arrangement, in which a spring washer having a frusto-conical shape is employed between the outer periphery of the diaphragm and one of the plate members between which the diaphragm is secured. In the free state of the spring washer, the spring washer height is greater than the space between the diaphragm and one plate member so that, when the plate members are joined together, the spring washer is compressed to thereby exert a clamping force on the diaphragm. The diaphragm-clamping point can be provided by either the inner or outer periphery of the spring washer, depending upon whether the frusto-conical shape is concave or convex. By forming an annular recess in the plate member with which the spring is engageable, proper location of the spring washer is facilitated during assembly, and subsequently maintained during clamping.

REFERENCES:
patent: 2264413 (1941-12-01), Siegerist
patent: 2939485 (1960-06-01), Nauheimer
patent: 3148596 (1964-09-01), Pagano, Sr.
patent: 3313552 (1967-04-01), McElya et al.
patent: 3424011 (1969-01-01), Pontis
patent: 3476398 (1969-11-01), Schanz
patent: 3615098 (1971-10-01), Sugahara
patent: 3630532 (1971-12-01), Traub et al.
patent: 3721127 (1973-03-01), Garcea
patent: 4422650 (1983-12-01), Reinsma et al.

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