Fluid handling – Systems – Multi-way valve unit
Patent
1991-04-25
1992-11-17
Nilson, Robert G.
Fluid handling
Systems
Multi-way valve unit
251121, F16K 154
Patent
active
051634767
ABSTRACT:
A regulator cone of substantially cylindrical form is disclosed with four generally V-shaped grooves on its outer circumferential surface. Two of the grooves define primary grooves that extend along the entire active length of the regulator cone. The other two grooves define secondary grooves that extend along the portion of the active length of the regulator cone where the primary grooves have their largest cross-sectional area.
REFERENCES:
patent: 2117182 (1938-05-01), Lewis
patent: 2336653 (1943-12-01), Taylor
patent: 2541176 (1951-02-01), Rockwell
patent: 3187775 (1965-06-01), Pinnell
patent: 3410521 (1968-11-01), Sowers, III et al.
patent: 4877160 (1989-10-01), Derving
Nilson Robert G.
Tetra Alfa Holdings S.A.
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