Liquid purification or separation – Casing divided by membrane into sections having inlet – Permeated liquid quantity measurement or control
Reexamination Certificate
2011-06-07
2011-06-07
Smith, Duane (Department: 1776)
Liquid purification or separation
Casing divided by membrane into sections having inlet
Permeated liquid quantity measurement or control
C210S096100, C210S134000, C210S137000, C210S149000, C210S243000, C210S258000, C210S259000, C210S416100, C204S632000
Reexamination Certificate
active
07955503
ABSTRACT:
A pure water producing apparatus prevents fluctuations in the amount of produced pure water without requiring a heat exchanger. Raw water is filtered with an activated carbon filtration device, sent through a water supply pump to the reverse osmosis device, and demineralized. Demineralized water output from the reverse osmosis device contacts a water quality sensor including a water temperature sensor, is sent to an electrodeionization device, and subjected to electrodeionization. Water subjected to electrodeionization contacts a water quality sensor having a water temperature sensor, and is taken out as treated water. A sensing signal output from the water temperature sensor is input to a pump control circuit to control an amount of the water supplied from the pump so that an amount of water passing through the reverse osmosis device is maintained constant.
REFERENCES:
patent: 2005/0103717 (2005-05-01), Jha et al.
patent: 2005/0103722 (2005-05-01), Freydina et al.
patent: S61-107906 (1986-05-01), None
patent: S63-270592 (1988-11-01), None
patent: H05-018870 (1993-01-01), None
patent: H08-229554 (1996-09-01), None
patent: H11-244863 (1999-09-01), None
patent: 2000-74865 (2000-03-01), None
patent: 2000-317457 (2000-11-01), None
patent: 2001-029752 (2001-02-01), None
patent: 2003-001259 (2003-01-01), None
patent: 2003-157869 (2003-05-01), None
patent: 2004-057935 (2004-02-01), None
Miwa Masayuki
Onota Seiichi
Durand Paul J.
Kanesaka Manabu
Kurita Water Industries Ltd.
Smith Duane
LandOfFree
Pure water producing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pure water producing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pure water producing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2662167