Process for the controlled release of metered quantities of lubricant when coating pressing tools with lubricating liquids and suspensions and apparatus for carrying out the process
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United States of America Patent
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Oct 15, 1991
Issued Date -
N/A
app pub date -
Mar 29, 1990
filing date -
Dec 14, 1988
priority date (Note) -
Expired
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Abstract
The specification describes a new process and apparatus for the controlled release of metered quantities of lubricating liquids or suspensions for applying a coating of lubricant to mechanically stressed zones of pressing tools in tablet-making machines, wherein the lubricating solution or suspension is fed into one or more liquid valves synchronously with the cadence of the tablet-making machine from a pressureless storage container by means of a pulsation-free pump, and any pressure variations occuring in the liquid supply line to the valves are compensated by changes in the times of opening of the valves.
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