| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210746000 | Electrical property sensing | 12 |
| 20080203033 | Encapsulated Water Treatment System - A water treatment system is provided having an encapsulate manifold with a reverse osmosis cartridge and one or more filter cartridges. The filter cartridge includes a detent for being received within a slot in the manifold head for secure locking engagement. The water treatment system further includes a single probe conductivity monitoring system for monitoring the performance of a reverse osmosis membrane. The water treatment system is also provided in a modular arrangement wherein manifold heads are physically and fluidly coupled together via a clip which interfaces with the modular manifold heads. The water treatment system also allows for a retrofit application to include a permeate pump. The cartridges are also designed to provide a minimum annular inlet gap to minimize spillage during changing of the cartridges. | 08-28-2008 |
| 20080237143 | METHOD OF INHIBITING CORROSION IN INDUSTRIAL HOT WATER SYSTEMS BY MONITORING AND CONTROLLING OXIDANT/REDUCTANT FEED THROUGH A NONLINEAR CONTROL ALGORITHM - This invention provides a method of preventing corrosion in industrial water systems. The method includes maintaining a real-time oxidation-reduction potential at a set point, wherein the system is at operating temperature and pressure. A nonlinear equation is derived based upon theoretically derived or empirically collected data. The equation is then used to determine an inflow of active chemical species to the water system. | 10-02-2008 |
| 20080314841 | SEWAGE TREATMENT CONTROL DEVICE, METHOD, AND SEWAGE TREATMENT SYSTEM - A sewage treatment control device, a method and a sewage treatment system, are disclosed. In one example, the sewage treatment control device includes measuring units having sensors for inspecting specific components in water, respectively; validity verification units connected to the measuring units to determine validities for measured component values, respectively; target value setting units connected to the validity verification units to set target values for the component values measured in the measuring units, respectively; a manual setting unit for setting a target value depending on a component value inputted by an operator; a signal selection unit for allowing either one of the respective target value setting units or the manual setting unit to be connected; a proportional-integral-derivative control unit for performing proportional, integral or derivative action for the target value inputted from the signal selection unit to convert the target value into a control signal; and a manipulation unit for manipulating a sewage treatment apparatus depending on the control signal converted in the proportional-integral-derivative control unit. | 12-25-2008 |
| 20090090675 | Process to remove salt or bacteria by ultrasound - A process for removal of salt and/or bacteria via ultrasound cavitation, which, by means of controlling cavitation, enables the salt crystals to be distilled and also aids in decanting coliforms and bacteria from the fluid by means of bursting gas bubbles within the fluid. As a result, liquids can be obtained which lead to different quality parameters with low impact on the environment, low energy costs and high production rates. The process can be applied to separate any inorganic or organic material from liquids. | 04-09-2009 |
| 20100044319 | CONTROLLER FOR UV LIGHT PURIFICATION SYSTEM - A controller for an ultraviolet (UV) purification system having UV lamps includes a sensor in communication with a given UV lamp as well as a processor in communication the sensor. The sensor provides the UV light intensity rate of the UV lamp (sensed rate) and transmits this information to the processor which compares the sensed rate with a memory stored desired UV light intensity rate (desired rate). An indicator in communication with the processor indicates when the UV lamp is producing a UV light intensity below the desired rate. Current is provided to the UV lamp by a ballast. The processor includes a memory stored predetermined UV light intensity rate (predetermined rate) that is greater than the desired rate. When the sensed rate is lesser than the predetermined rate, the current provided by the ballast is increased such that the UV lamp produces a UV light intensity at least equal to the predetermined rate. | 02-25-2010 |
| 20110253639 | Spa Water Sanitizing Method and Apparatus - A spa sanitizing apparatus including a sanitizing agent generating cell, an H-Bridge circuit arranged to supply a voltage to electrodes of the cell, a controller circuit for controlling the operation of the H-Bridge circuit, and a watch dog circuit for monitoring a voltage applied to the electrodes and for shutting down power if the voltage departs from a pre-determined limit. | 10-20-2011 |
| 20110253640 | IN-LINE FLOW SEPARATION OF FLUIDS IN A PIPE SEPARATOR - An in-line flow separator comprises an uphill section of pipeline which, in use, carries a gravitationally stratified flow of a first liquid and a second denser liquid. The second liquid forms a sump extending uphill from the foot of the uphill section, and an interface between the first and second liquids on the uphill section is inclined from the horizontal. An extraction port in the pipeline extracts the second liquid from the sump. | 10-20-2011 |
| 20120080387 | METHOD FOR TRACKING POLLUTION SOURCE IN PROCESS WATER - A method for tracking a pollution source in process water is presented. Firstly, variation curves of drain water drained from different rinsing tanks are respectively obtained, and a water quality concentration of the drain water drained to a buffer tank is detected, so as to output a water quality variation curve. Then, an analytical comparison is performed on each drain water amount variation curve and the water quality variation curve within a same time interval, so as to output an analytical result of each flow of drain water in a range exceeding a predetermined water quality standard. In this manner, the drain water that exceeds the predetermined water quality standard can be tracked in real-time according to the analytical result, thereby quickly improving the process for discharging the drain water. | 04-05-2012 |
| 20140166590 | SYSTEM AND METHOD FOR CONTROLLING ULTRAVIOLET LIQUID DISINFECTION - An ultraviolet (UV) liquid disinfection system and method are described. The system includes a conduit to carry liquid to be disinfected, the conduit having an inlet to receive the liquid and an outlet to discharge the liquid; a UV source configured to illuminate the liquid within the conduit; a liquid salinity detector to measure a value indicative of the liquid salinity; and a controller coupled to the salinity detector and configured to receive from the liquid salinity detector the measured value and to determine a desired salinity-adjusted UV dose level based on the measured value and predetermined data correlating salinity levels to respective UV dose levels. | 06-19-2014 |
| 20140291253 | SYSTEM AND METHOD FOR MEASURING AND TREATING A LIQUID STREAM - A method and system of treating a liquid stream is provided. The water is treated by utilizing a free radical scavenging system and a free radical removal system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The free radical removal system can comprise use of a reducing agent. The water may be further treated by utilizing ion exchange media and degasification apparatus. A control system may be utilized to measure and regulate addition of the precursor compound, the intensity of the actinic radiation, and addition of the reducing agent to the water. | 10-02-2014 |
| 20140339175 | METHOD OF OPERATING POOL CLEANER WITH INTEGRAL CHLORINE GENERATOR - An automated self-propelled robotic pool cleaner having a housing and drive means for moving the pool cleaner over at least the bottom wall of a pool, is provided with an integral on-board electrochemical chlorine generator for producing chlorine from a chlorine compound, e.g., sodium chloride, that is dissolved in the pool water, a source of electrical power operatively connected to the electrochemical chlorine generator, control means for initiating and terminating the operation of the chlorine generator, and an outlet for discharging water containing chlorine ions produced by the electrochemical generator to thereby distribute the chlorine into the water proximate the exterior of the pool cleaner housing as the pool cleaner follows a programmed operational mode across the bottom and/or side walls of the pool. The operation of the chlorine generator is in response to a manually operated switch and/or signals transmitted directly or indirectly to the control means. | 11-20-2014 |
| 20160137534 | APPARATUS AND METHOD TO REDUCE AND CONTROL RESISTIVITY OF DEIONIZED WATER - An apparatus and method to convert high resistivity (18 MOhm/cm) deionized water into lower resistivity deionized water with a tight resistivity range. The apparatus is diminished in size to require less space, has an improved sensitivity resistivity probe to permit a lower operating range, an increased communication rate with updated control logic to permit holding tighter tolerances. The method is environmentally friendly in that it replaces the use of harsh chemistries and eliminates the generation of hazardous waste. | 05-19-2016 |
