Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Reexamination Certificate
2004-10-23
2010-11-02
Cecil, Terry K (Department: 1797)
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
C210S106000, C210S107000, C210S396000
Reexamination Certificate
active
07824544
ABSTRACT:
The invention relates to a device which is used to continuously filter material mixtures, in particular for separating impurities from plastic melts. The device includes a hollow cylindrically-shaped filter element (2) which is arranged inside a housing (1), an annular chamber (22) which is defined from the outside of the filter element (2) and an inner wall of the housing, and at least one stripper (23) which can be pressed onto the filter body by an adjusting device. The stripper is used to remove the impurities detained on the filter element (2) due to a relative movement of the filter element (2) and the stripper (23). The adjusting device contains a pressure sensor (42, 53) which is used to detect the pressure of the material mixture upstream from the filter body and an actuator (43) which is connected to the pressure sensor, the actuator being used to adjust the pressure of the stripper (23) according to the pressure detected by the pressure sensor.
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Bianco Paul D.
Cecil Terry K
Ettlinger Kunststoffmaschinen GmbH
Fleit Martin
Fleit Gibbons Gutman Bongini & Bianco PL
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