Fluid flow control regulator

Details Fluid flow control regulator Fluid flow control regulator

1990-03-06

1991-03-19

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

137504, 251 50, G05D 701

Patent

active

050002198

ABSTRACT:
Improved flow control valves are disclosed which are exceedingly accurate in maintaining a constant predetermined flow rate regardless of inlet and outlet pressures. The valves are preferably designed to enable them to be fabricated almost entirely from suitable polymeric composition materials. One embodiment disclosed is extremely well suited for ultra-pure applications which require extreme care to avoid any possible contamination of the liquid flowing therethrough. Another embodiment is disclosed which is designed to achieve substantially zero leakage flow thereby rendering it particularly well suited for use in applications requiring exceedingly precise flow control and in particular relatively low flow rate applications wherein leakage flow is of greater significance.

REFERENCES:
patent: 1186593 (1916-06-01), Meyer
patent: 2324946 (1943-07-01), Molloy
patent: 2800919 (1957-07-01), Kates
patent: 2859769 (1958-11-01), Viergutz
patent: 2950733 (1960-08-01), Perkins
patent: 2967543 (1961-01-01), Viergutz
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patent: 3402735 (1968-09-01), Kates
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patent: 3590861 (1971-07-01), Chittenden
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patent: 4044995 (1977-08-01), Kubota
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patent: 4129624 (1978-12-01), Kates
patent: 4669495 (1987-06-01), Boyce
patent: 4776367 (1988-10-01), Hilmersson et al.
Brochure: Kates Company, 2101 Waukegan Rd., Deerfield, IL 60015, Bulletin 186.

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