Rotary kinetic fluid motors or pumps – With shaft connected fluid force subjected thrust balancing... – Motor shaft
Reexamination Certificate
2008-03-04
2008-03-04
Edgar, Richard A. (Department: 3745)
Rotary kinetic fluid motors or pumps
With shaft connected fluid force subjected thrust balancing...
Motor shaft
C415S113000, C415S230000
Reexamination Certificate
active
10493180
ABSTRACT:
A pump for the transporting of fluids and/or of mixtures of fluids includes a housing (1) and at least one restrictor gap seal which is provided in the housing (1) to reduce the pressure in a restrictor gap along a rotatable part (2) of the pump, wherein the restrictor gap seal is formed as a brush seal arrangement (8). The brush seal arrangement (8) contains one or more individual brush seals (8′) which include as sealing members a plurality of sealingly arranged fibers, bristles and/or wires (8a) which are distributed and fastened in ring form and whose free ends extend towards the surface to be sealed.
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Edgar Richard A.
Sulzer Pumpen AG
Townsend and Townsend / and Crew LLP
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