Valve and actuator

Details Valve and actuator Valve and actuator

1985-09-05

1986-12-09

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

251 615, 251356, 92 98D, F16K 11044, F16K 31145, F01B 1900, F16J 302

Patent

active

046274669

ABSTRACT:
A valve made from substantially all plastic parts that has integrally molded valve seats. A unique valve disk comprises two identical, mirror-image, molded plastic parts. The parts are of thin-walled construction but are joined together to give the valve body a substantially thick cross section with elongated shear surfaces in the radial direction. End flanges on the seal disk parts mechanically trap the soft sealing material and provide the maximum depth along the force line of contact between the sealing seat and the seal disk. The valve body has a cylinder and a cylinder cap of identically molded, mirror-image parts which house a diaphragm that overlies a plastic domed piston. The domed piston is provided with radially spaced circular ribs for supporting the diaphragm against excess deflection.

REFERENCES:
patent: 21332 (1858-08-01), Fuller
patent: 1034323 (1912-07-01), Tanner
patent: 1785279 (1930-12-01), MacClatchie
patent: 2639728 (1953-05-01), Briechle
patent: 2782801 (1957-02-01), Ludwig
patent: 3283670 (1966-11-01), Taplin
patent: 3375760 (1968-04-01), Taplin
patent: 4128110 (1978-12-01), Haytayan
patent: 4262698 (1981-04-01), Fields
patent: 4354525 (1982-10-01), Oyama et al.
patent: 4531532 (1985-07-01), Zimmerly

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