Rotary servo valve and guidance system apparatus for controlling the same
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United States of America Patent
Stats
-
Jun 11, 1996
Grant Date -
N/A
app pub date -
May 23, 1994
filing date -
May 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A guidance control system for trailing implements attached to a tractor is disclosed. The system can function to steer the implement in a row crop, for example, and can also steer the tractor. A proportional servo valve having a rotatable spool is disclosed, which valve can be controlled to operate in an open center or closed center modes of operation.
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Family
International Classification(s)
Cited Art Landscape
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