Invention Grant
- Patent Title: Point of use filtration system with backwash
- Patent Title (中): 使用过滤系统与反冲洗
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Application No.: US14201052Application Date: 2014-03-07
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Publication No.: US09550152B2Publication Date: 2017-01-24
- Inventor: Tedd Michael Schneidewend
- Applicant: Tedd Michael Schneidewend
- Applicant Address: US WI Glendale
- Assignee: Pentair Residential Filtration, LLC
- Current Assignee: Pentair Residential Filtration, LLC
- Current Assignee Address: US WI Glendale
- Agency: Quarles & Brady LLP
- Main IPC: B01D65/02
- IPC: B01D65/02 ; C02F9/00 ; B01D61/14 ; B01D61/16 ; B01D61/22 ; C02F1/44 ; C02F1/00 ; C02F103/04

Abstract:
A system and method for a point of use filtration system with backwash is provided. The system includes a first filtration element, a tank, and a second filtration element positioned downstream from the tank. A first and second valve are each positioned downstream from the first filtration element. A first control line is coupled to a first control switch or a first permeate line and the first valve, and a second control line is coupled to the second control switch or a second permeate line and the second valve. When the point of use demands permeate water, the first and second pressure drops cause the first and second valves to open so water from the tank flows in a reverse direction to backwash the first filtration element and exit through the first and second valves to the drain, while water from the tank simultaneously flows through the second filtration element to the point of use.
Public/Granted literature
- US20140251905A1 Point of Use Filtration System with Backwash Public/Granted day:2014-09-11
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