Valve

Details Valve Valve

1985-07-08

1987-05-12

Nilson, Robert G.

Fluid handling

Systems

Multi-way valve unit

137312, 13762568, 13762569, F16K 1107

Patent

active

046641513

ABSTRACT:
A valve assembly and the manner of making the same of the character which embodies a hollow cylindrical body having fluid inlet and outlet ports and a slide member, or spool, slidable within the body to control fluid flow through the valve. Sealing elements are carried by the valve body for sealable engagement with the slide member as it reciprocates within the valve body. The fluid passageways which carry the fluid between the inlet and outlet ports of the valve body are uniquely formed internally of the slide member. Because the slide member is precision ground to a uniform diameter over its entire length, there exists no differing diameters or steps which might abrade the sealing means or tend to cause an inadvertant shifting of the spool within the valve body due to fluid pressures exerted thereon.

REFERENCES:
patent: 789026 (1905-05-01), Huston
patent: 2631571 (1953-03-01), Parker
patent: 2880755 (1959-04-01), Brown
patent: 3076476 (1963-02-01), Campbell
patent: 3163175 (1964-12-01), Pearson
patent: 3352324 (1967-11-01), Stryker
patent: 3492817 (1970-02-01), Adams
patent: 4512370 (1985-04-01), Roger

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