Plastic valve bush for dynamic multi-port valve

Details Plastic valve bush for dynamic multi-port valve Plastic valve bush for dynamic multi-port valve

1991-02-19

1992-03-17

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

13762548, F16K 1107

Patent

active

050959492

ABSTRACT:
A valve bush for a dynamic multi-port valve comprises a plurality of separately formed hollow cylindrical plastics segments interengaged in end-to-end relationship to form the bush, the or each intermediate set of small diameter apertures being in the form of a plurality of apertures, for example rectangular slots, defined by facing end surfaces of two adjacent segments and by a plurality of spaced fingers extending axially from said end surfaces. A bush of the invention for a five port valve will comprise three such segments, and a bush for a three port valve will comprise two such segments.

REFERENCES:
patent: 1307821 (1919-06-01), Kiesel
patent: 1839581 (1932-01-01), Nell
patent: 2920650 (1960-01-01), Moog
patent: 3103739 (1963-09-01), Moog
patent: 3199540 (1965-08-01), Forster
patent: 3451430 (1966-10-01), Cowdin
patent: 3552442 (1971-01-01), Knowles
patent: 3690874 (1972-09-01), Tarshis
patent: 4680596 (1972-08-01), Pickett

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