Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2007-03-23
2008-12-02
Huson, Gregory L (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S315410, C137S015170, C137S315160, C073S001720, C073S001250
Reexamination Certificate
active
07458394
ABSTRACT:
A servovalve assembly includes a motor having a flapper shaft. A flapper couples to a first end of the flapper shaft such that the flapper shaft orients the flapper between a first nozzle and a second nozzle of the servovalve assembly. An adjustment assembly adjusts a position of the flapper relative to the nozzles of the servovalve. The adjustment assembly enables a servovalve manufacturer to set the flapper of the servovalve at a null position without disassembling the servovalve. Rather, the manufacturer is capable of simply installing the adjustment assembly and deforming an arm portion of the adjustment assembly for proper null position calibration.
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Achmad Muchlis
Johnson Bernard
Bainwood Huang
HR Textron Inc.
Huson Gregory L
Schneider Craig M
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