Apparatus for passing stock into a headbox of a paper...

Details Apparatus for passing stock into a headbox of a paper... Apparatus for passing stock into a headbox of a paper...

2005-03-22

2005-03-22

Halpern, Mark (Department: 1731)

Paper making and fiber liberation

Processes and products

Reclamation, salvage or reuse of materials

C162S264000, C162S336000, C162S380000, C095S266000, C095S241000, C095S024000, C095S019000

Reexamination Certificate

active

06869504

ABSTRACT:
A vacuum pump (P0) provides vacuum to a paper machine deaeration tank (11) which has an inlet duct (10) through which the tank is supplied with wire water. A discharge duct (12) extends from the deaeration tank (11). There is an overflow (14) for the wire water in the discharge duct at the discharge end of the discharge duct (12). The overflow (14) of the discharge duct (12) is located below the deaeration tank (11) and opens to a free air space. The discharge duct (12) includes a branch duct (15a1) for a flow which is passed to the headbox (100).

REFERENCES:
patent: 4219340 (1980-08-01), Kaiser
patent: 4443232 (1984-04-01), Kaiser
patent: WO 02057542 (2002-07-01), None
International Preliminary Examination Authority issued in PCT/FI01/01129.
International Search Report issued in International App. No. PCT/FI01/01129.

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