Rotary kinetic fluid motors or pumps – Including means for handling portion separated from working... – Moisture or liquid separated from gaseous working fluid...
Reexamination Certificate
2005-04-19
2005-04-19
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Including means for handling portion separated from working...
Moisture or liquid separated from gaseous working fluid...
C415S126000
Reexamination Certificate
active
06881028
ABSTRACT:
Apparatus for pumping a pulp suspension and simultaneous abduction of gas from the suspension is disclosed. The apparatus comprises at least one pulp pump including a pump housing with an inlet, a first outlet for the suspension, and a second outlet for the gas. The gas outlet is connected to at least one external vacuum pump by a gas conduit including a substantially vertical portion having a maximum height, located on a level above the pulp pump, and a flushing water supply for the supply of flushing water to the gas conduit connected above the substantially vertical portion of the gas conduit.
REFERENCES:
patent: 5017198 (1991-05-01), Schieg et al.
patent: 5234480 (1993-08-01), Henricson et al.
patent: 6290760 (2001-09-01), Taivalkoski et al.
Lerner David Littenberg Krumholz & Mentlik LLP
Look Edward K.
McAleenan James M.
Metso Paper Inc.
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