Method of making a fluid flow controlling slide member for a val

Details Method of making a fluid flow controlling slide member for a val Method of making a fluid flow controlling slide member for a val

1987-01-27

1988-01-19

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29434, 29DIG48, B21D 5300

Patent

active

047196815

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: 2675831 (1954-04-01), Jacques
patent: 4030668 (1977-06-01), Kiwior
patent: 4512370 (1985-04-01), Roger

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