Invention Grant
- Patent Title: Pump secondary seal
- Patent Title (中): 泵二次密封
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Application No.: US11577410Application Date: 2005-10-20
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Publication No.: US07824161B2Publication Date: 2010-11-02
- Inventor: Pradeep Kumar Tandon
- Applicant: Pradeep Kumar Tandon
- Applicant Address: AU Rydalmere
- Assignee: Waterco Limited
- Current Assignee: Waterco Limited
- Current Assignee Address: AU Rydalmere
- Agency: Strainbrook & Strainbrook, LLP
- Agent Craig M. Stainbrook
- International Application: PCT/IB2005/004080 WO 20051020
- International Announcement: WO2006/059238 WO 20060608
- Main IPC: F04B35/04
- IPC: F04B35/04

Abstract:
A centrifugal pumps secondary seal is disposed between the pump housing cover (130) in the seal chamber and includes a rotatable annular slinger (440) axially disposed on the pump motor shaft for slinging water away from the motor shaft and a flange protector (300) with a drain (400, 430) for diverting and directing free liquid from the seal chamber and outside the motor and pump housing (130, 230), thereby preventing corrosion of the seal chamber components, such as the motor flange (230), drive shaft and other motor components, due to exposure to water.
Public/Granted literature
- US20080008585A1 Pump Secondary Seal Public/Granted day:2008-01-10
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