Metering pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 11, 1995
Issued Date -
N/A
app pub date -
May 4, 1994
filing date -
Jan 6, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A metering pump for use on a printing press has a pumping chamber formed between a rigid support plate and a flexible diaphragm. A piston acts through the diaphragm to vary the volume of the chamber and flow to and from the chamber is controlled by respective valves. The valves are formed by co-operation between the diaphragm and support plate and are operated by pistons acting through the diaphragm.
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