Control system for ram fed mixing machine
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
May 21, 1986
filing date -
May 21, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A batch mixer has position monitoring means for the ram operably coupled to the ram moving motor to move the ram within a range of positions adjacent the ram's 'down' position to improve mixing by allowing limited upward movement of the ram as a result of internal pressures inside the mixer. Excessive ram return movement is prevented however, and the limited ram movement is achieved by feedback control influence on the pressure to the fluid actuator that operates the ram. Also disclosed is a feed-back control for batch size to assure that optimum use is achieved for the mixer during each batch mixing interval.
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