Coaxial seal for a pump

Details Coaxial seal for a pump Coaxial seal for a pump

2005-07-26

2005-07-26

Nguyen, Hoang (Department: 3748)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

C415S174200

Reexamination Certificate

active

06921245

ABSTRACT:
A sealing mechanism for a fluid pump comprises first and second seal members which are coaxially and radially oriented relative to each other, and are positioned between the rotating and non-rotating elements of the fluid pump to maintain a competent seal which is simple to assembly, maintain and repair or replace, and which also improves pump operation when compared to known sealing mechanisms for fluid pumps.

REFERENCES:
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patent: 4946349 (1990-08-01), Manabe et al.
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patent: 6098988 (2000-08-01), Kawakami et al.
patent: 6234748 (2001-05-01), Brown et al.
“Rock V.I.T. and Hermetaseal Chemical Process Pumps” Technical Data Bulletin 100.5B for Environamics.

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