Load-sensing pneumatic control system
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United States of America Patent
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-
Oct 6, 1998
Grant Date -
N/A
app pub date -
Jun 18, 1997
filing date -
Jul 12, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pneumatic control system for selectively controlling a pneumatically-operated device for controlling movement of a variable load, such as a material handling device or lifting and lowering device, is capable of automatically sensing the load exerted on the pneumatically-operated device and automatically self-compensating for varying loads in order to selectively maintain the load in a static condition. The system further allows for ease of manual manipulation of the load to a new static condition and automatically self-compensates in order to maintain the load at such new static condition. The system preferably accomplishes this by automatically detecting the outlet pneumatic pressure necessary to maintain the load in a first static condition and for automatically self-adjusting the outlet pneumatic pressure to maintain the load in a second static condition.
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