Spool valve assembly

Details Spool valve assembly Spool valve assembly

1998-10-29

1999-11-09

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

92 99, 251 612, F15B 13042, F16K 31126

Patent

active

059795026

ABSTRACT:
In a conventional spool valve, the nut holding the diaphragm to the spool valve stem is replaced by a retaining ring, thereby simplifying the machining operation and eliminating the problems caused by damaged threads. A good seal is nevertheless achieved by providing an insert molded diaphragm having a bead around its axial aperture, which is compressed against the radial flange of the valve stem, and such that the retaining ring will maintain the compressed condition of the bead against the radial flange to maintain a good seal.

REFERENCES:
patent: 2904068 (1959-09-01), St. Clair
patent: 3071080 (1963-01-01), Edelen
patent: 3105508 (1963-10-01), Bowditch et al.
patent: 4887516 (1989-12-01), Scott et al.
patent: 4960038 (1990-10-01), Chiba et al.
patent: 5836566 (1998-11-01), Bullard et al.

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