Multi-channel pintle valve

Details Multi-channel pintle valve Multi-channel pintle valve

2007-07-10

2007-07-10

Fox, John (Department: 3753)

Fluid handling

Systems

Valves with separate, correlated, actuators

C251S084000

Reexamination Certificate

active

10366293

ABSTRACT:
A multi-channel valve uses a single drive motor to translate a single actuator assembly coupling multiple pintle valves for metering the same amount of media through each channel. The actuator assembly includes a swivel base mounting two or more clevis and nut arrangements coupled to the pintles. The actuator assembly translates the pintles the same distance. The clevis and nut joints can pivot and slide with respect to the swivel base to provide four degrees of freedom between the pintles to significantly reduce binding or side loading on one or both pintles. A stop cushioning assembly is provided to prevent jamming at the interface of the actuator assembly and a motor driven drive assembly.

REFERENCES:
patent: 215478 (1879-05-01), Pottle
patent: 1538207 (1925-05-01), Niedecken
patent: 1721954 (1929-07-01), Herst
patent: 2959541 (1960-11-01), Cleary
patent: 3430654 (1969-03-01), Mills
patent: 4211258 (1980-07-01), Switall
patent: 4948091 (1990-08-01), Satoh et al.
patent: 6016832 (2000-01-01), Vars et al.
patent: 6250602 (2001-06-01), Jansen

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