Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2011-06-07
2011-06-07
Nguyen, Ha Tran T (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S207240, C324S207220, C324S207130, C324S207180, C324S207150, C324S207160, C324S207200, C324S207210, C244S003100, C244S003200, C244S003300, C244S003150, C244S003210, C244S220000, C244S221000, C244S003240
Reexamination Certificate
active
07956606
ABSTRACT:
A position sensing assembly includes a bearing element and a helically shaped rotational member used to drive a portion of a sensor assembly, such as a Digital Rotary Magnetic Encoder. Interaction between the bearing element and a helically shaped rotational member minimizes the presence of backlash in the position sensing assembly. Accordingly, as an actuator assembly drives both a control element, such as a flight control surface, and the position sensing assembly, the sensor assembly generates an output signal that accurately reflects the position of the control element.
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International Search Report and Written Opinion for PCT/US2009/048303, mailed Jan. 22, 2010.
Bessinger Russell Robert
Burt Raymond Lee
BainwoodHuang
Brown Lamarr
Nguyen Ha Tran T
Woodward HRT, Inc.
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