Fluid handling – Self-proportioning or correlating systems – Flow rate responsive
Patent
1976-03-17
1978-01-31
Cohan, Alan
Fluid handling
Self-proportioning or correlating systems
Flow rate responsive
137494, 251 5, 251 7, G05D 1606
Patent
active
040710394
ABSTRACT:
A valve assembly of the type, wherein a first end of a movable plunger is adapted to collapse or compress a first tube length against an opposite tube backing or support structure in order to regulate or vary the flow conditions of a fluid in this first tube length, is equipped with a control assembly comprising a second interiorly pressurized tube length and a second or opposite end of the plunger engages this second tube length. Thus, by appropriately proportioning the sizes of the contact faces between the respective plunger ends and the tube length associated therewith it will be possible to control the flow conditions in one of the tube lengths responsive to the fluid pressure in the other tube length whereby various valve or regulating functions may be performed by the valve. The two tube lengths may be parts of one and the same tube whereby additional valve or regulating functions may be performed.
REFERENCES:
patent: 2471623 (1949-05-01), Hubbell
patent: 2556689 (1951-06-01), Grove
patent: 2827919 (1958-03-01), Rice et al.
patent: 2985192 (1961-05-01), Taylor
patent: 3187774 (1965-06-01), Leigh et al.
patent: 3213882 (1965-10-01), Beatty
patent: 3450152 (1969-06-01), Quellette
patent: 3468342 (1969-09-01), Craft
patent: 3578885 (1971-05-01), Alton
patent: 3582284 (1971-06-01), Hamshere et al.
patent: 3974858 (1976-08-01), Nielsen
Cohan Alan
Michalsky Gerald A.
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