Ink system with self-washing filter
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United States of America Patent
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-
Sep 13, 1988
Grant Date -
N/A
app pub date -
Feb 27, 1984
filing date -
Feb 27, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink filter system including a self-washing filter provided with upper and lower cylinder chambers and a piston reciprocable between upper and lower positions in the upper cylinder chamber. First and second inlets are provided for introducing fluid into the upper cylinder chamber on opposite sides of the piston. The filter screen is mounted in the lower cylinder chamber. The filter is cleaned on the upstroke of a spray nozzle which is connected to the piston. The spray nozzle is cleaned on the downstroke of the piston.
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