Preparation For Treating Operation Patents (Class 210/140)
  • Patent number: 10407325
    Abstract: A method for providing a safe and healthy water and water-based product, comprising: testing pretreated reverse osmosis water to determine whether it meets a first set of pre-defined specifications; introducing a pre-defined nutrient composition into the water, wherein the predefined nutrient composition comprising one or more of mineral nutrients, trace elements and nutritional supplements; testing the water to determine whether it meets a second set of predefined specifications; and disinfecting the water along with its container by UV irradiation from a UV light source to obtain a water product.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: September 10, 2019
    Assignee: A. O. SMITH CORPORATION
    Inventor: Hai-Feng Zhang
  • Patent number: 10183106
    Abstract: A blood purification system includes a plurality of monitoring devices (1) each attached to a dialyzer (5) to perform a blood purification treatment on a patient. A dialysate supplying device (2) supplies a dialysate to each of the monitoring devices (1). The plurality of monitoring devices (1) and the dialysate supplying device (2) are connected to each other by a LAN cable ?. Thus, predetermined individual information relating to the plurality of monitoring devices (1) is transmitted from each of the monitoring devices (1) to the dialysate supplying device (2).
    Type: Grant
    Filed: November 30, 2013
    Date of Patent: January 22, 2019
    Assignee: Nikkiso Company Limited
    Inventors: Harutoshi Okabe, Hiroaki Suzuki, Masaru Kuchiki
  • Patent number: 10151536
    Abstract: The automatic reset of an evaporative cooling water dissolved solids set point based on detection of water softener performance is provided. A controller has a sensor, or is given an input signal, which confirms that the softener is operating properly. Positive confirmation of water softener performance allows the controller to maintain a user specified high total dissolved solids set point in the evaporative cooling water. Should a failure of the softener be detected, the controller then maintains a user specified lower total dissolved solids set point.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: December 11, 2018
    Inventor: Patrick Henry Carew
  • Patent number: 10086124
    Abstract: In some aspects, a dialysis machine support assembly includes a platform configured to support a dialysis machine and a drive assembly configured to move the platform vertically.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: October 2, 2018
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Gurpreet Singh, Sean Farrell, Michael David Young
  • Patent number: 10059611
    Abstract: A method includes flowing brine including one or more hardness minerals from a desalination system to a mineral removal system. The method also includes removing the one or more hardness minerals from the brine in an ion separation system disposed upstream from and fluidly coupled to the mineral removal system. The ion separation system may generate a first softened brine and includes a plurality of ion exchange subsystems each including an ion exchange resin. The method also includes saturating the ion exchange resin of at least one ion exchange subsystem with the one or more hardness minerals removed from the brine and regenerating the saturated ion exchange resin. The method further includes recovering the one or more hardness minerals from the ion exchange resin via the mineral removal system. The mineral removal system is fluidly coupled to the ion separation system.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: August 28, 2018
    Assignee: Enviro Water Minerals Company, Inc.
    Inventor: Paul Steven Wallace
  • Patent number: 10016794
    Abstract: A reactor for processing organic waste includes a steam supply pipe installed in a reaction vessel such that steam supplied from an external steam supply device can be supplied into the inside of the reaction vessel. The steam supply pipe has a plurality of steam supply holes so as to supply the steam supplied from the steam supply device to the waste in the reaction vessel through the holes. An organic waste processing apparatus comprising the reactor having the configuration above is provided. Heat due to the steam supplied to the reactor is uniformly supplied to the waste in the reactor within a short time, and thereby increasing processing efficiency.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: July 10, 2018
    Assignee: BOO-KANG TECH CO., LTD.
    Inventors: Dong-Gyun Hwang, Ho-Jae Hwang, Young-Soo Choi, Chang-Soo Kim
  • Patent number: 10012319
    Abstract: A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55, 57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasibly engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 3, 2018
    Assignee: CHANDLER SYSTEMS, INC.
    Inventors: William D. Chandler, Jr., Aaron R. Wolfe, Cody A. Harbaugh
  • Patent number: 9714715
    Abstract: A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55, 57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasibly engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: July 25, 2017
    Assignee: CHANDLER SYSTEMS, INC.
    Inventors: William D. Chandler, Jr., Aaron R. Wolfe, Cody A. Harbaugh
  • Patent number: 9697334
    Abstract: A dialysis system includes a dialysis machine including at least one dialysis fluid pump and a logic implementer configured to (i) receive a plurality of predetermined therapy prescriptions that have been approved remote from the dialysis machine by a doctor/clinician for a particular patient, at least two of the plurality of predetermined therapy prescriptions having different treatment durations, different dialysis fluids or different ultrafiltration removal amounts, (ii) store the plurality of predetermined therapy prescriptions for use in operating the dialysis machine, (iii) cause the stored therapy prescriptions to be presented, (iv) allow a selection of one or more of the presented therapy prescriptions for one or more upcoming treatment, and (v) operate the at least one dialysis fluid pump according to the selected one or more therapy prescriptions.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: July 4, 2017
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Anping Yu, Robert W. Childers, Borut Cizman
  • Patent number: 9623166
    Abstract: A mixing apparatus which can reliably prevent an auxiliary liquid from being unintentionally mixed into a main unit even when a failure occurs in a switching device, and which can prevent the switching device or an auxiliary flow route from being damaged even when a pressurizing device malfunctions due to the failure. The mixing apparatus includes a pipe circulating dilution water; a pipe circulating a disinfecting solution; a pressurizing pump circulating the disinfecting solution in the pipe toward the pipe; and a check valve capable of optionally turning on and off the pipe.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: April 18, 2017
    Assignee: NIKKISO COMPANY LIMITED
    Inventors: Hiroaki Mochizuki, Harutoshi Okabe
  • Patent number: 9505637
    Abstract: Provided are methods of inhibiting microbial fouling and improving efficiency in biocide dosing in an industrial process containing an aqueous liquid having a biocide demand. In exemplary embodiments, the methods comprise treating an aqueous liquid having a biocide demand with a biocide, monitoring the biocide demand of the aqueous liquid, and filtering a stream of the aqueous liquid. The filtering may be performed in a full-flow or side stream manner.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 29, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Walter Kozlowski, Amit Gupta
  • Patent number: 9180238
    Abstract: A dialysis machine includes a control unit having a user interface; a heater(s) located separate from the control unit; a supervisory processor located with the control unit; a delegate control processor located with the heater(s), the delegate control processor in communication with the supervisory processor and configured to receive load cell, heater(s) plate and supply bag temperature sensor inputs; and a sub-delegate heater(s) processor in communication with the control processor and configured to control power to the heater(s). The machine can also include primary and secondary monitoring processors that perform a safety check to the control processing and monitor the load cell.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 10, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: John Bedingfield, Benjamin Kellam, Ronald D. Baerg, Gideon Hecht
  • Patent number: 9141760
    Abstract: In an embodiment, an automated peritoneal dialysis (“APD”) machine includes at least one pump, a logic implementer storing a plurality of therapy prescriptions by which to operate the at least one pump, each therapy prescription pre-approved for a particular patient, and an input device operating with the logic implementer to allow the patient to select one of the therapy prescriptions for a particular therapy. In another embodiment, the input device operating with the logic implementer allows a doctor/clinician to select or approve one of the therapy prescriptions to be run on the APD machine. In a further embodiment, the logic implementer is programmed to select or suggest one of the therapy prescriptions to be run on the APD machine.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 22, 2015
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Anping Yu, Robert W. Childers, Borut Cizman
  • Publication number: 20150034536
    Abstract: An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates by imposing that an emptying time of containers of fresh fluid (16, 20, 21, 26) and/or a filling time of a waste container is substantially same as, or multiple of the emptying time of one or more of the other containers of fresh fluid.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 5, 2015
    Applicant: GAMBRO LUNDIA AB
    Inventors: Hiram Rada, Dominique Pouchoulin, Georges Vantard, Alain Frugier
  • Publication number: 20150034557
    Abstract: An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates based on a fluid flow rate set by the operator and on a prescribed dose value (Dset).
    Type: Application
    Filed: August 23, 2012
    Publication date: February 5, 2015
    Applicant: GAMBRO LUNDIA AB
    Inventor: Dominique Pouchoulin
  • Publication number: 20140299545
    Abstract: A dialysis system includes a filtration system capable of filtering a water stream, a water purification system capable of purifying said water stream in a non-batch process, a mixing system capable of producing a stream of dialysate from mixing one or more dialysate components with the water stream in a non-batch process, and a dialyzer system. The dialyzer may be a microfluidic dialyzer capable of being fluidly coupled to the stream of dialysate and a blood stream.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Applicants: State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon, Home Dialysis Plus, Ltd.
    Inventors: Julie S. Wrazel, James R. Curtis, Ladislaus Nonn, Richard B. Peterson, Hailei Wang, Robbie Ingram-Goble, Luke W. Fisher, Anna E. Garrison, M. Kevin Drost, Goran Jovanovic, Richard Todd Miller, Bruce W. Johnson, Alana Anderson, Eric K. Anderson
  • Publication number: 20140246363
    Abstract: A water softening system of the cation exchange type includes a regeneration system where there is a discharge duct for discharging waste flush water to waste from the treatment tank during regeneration with a valve for controlling the outlet and the discharge duct so that during regeneration the water from the treatment tank does not flow to the outlet and is instead directed to the discharge duct. A brine tank is provided for containing a solution of salt in water for injection by a transfer arrangement into the treatment tank with a return valve in the discharge duct operable to return a portion of the waste flush water to the brine tank which is equal to the quantity drawn by a brine transfer arrangement, while all waste flush water not returned to the brine tank is discharged to waste.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Inventor: Paul V. Jacuzzi
  • Publication number: 20140223938
    Abstract: An apparatus for a programmable self sanitizing water dispenser apparatus with a digital controller as well as a programmable method for generating ozone for cleaning the reservoir and the water contained within it. The apparatus includes an anti-spill receiver that houses the controller and that can contain a ozone generator.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 14, 2014
    Applicant: S.I.P. TECHNOLOGIES L.L.C.
    Inventor: Kenneth A. Davis
  • Publication number: 20140216995
    Abstract: An apparatus for treating a liquid containing impurities may comprise: a filtering chamber for receiving liquid containing impurities, the filtering chamber containing granular media and configured to permit the granular media to interact with the liquid containing impurities, thereby removing impurities from the liquid to produce filtrate; a filtrate section in communication with the filtering chamber for receiving the filtrate, the filtrate section being in communication with a first outlet for outflow of the filtrate; a gas supplying system for delivering gas to the granular media in the filtering chamber for transport of a portion of the granular media to a granular media washer; and a reject section in communication with the granular media washer for receiving a reject mixture comprising liquid and impurities from the granular media washer. The reject section may be in communication with a second outlet for outflow of a portion of the reject mixture.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Applicant: Parkson Corporation
    Inventors: Brett H. BOYD, Russell L. COOK, Adrian STRENG
  • Publication number: 20140217038
    Abstract: A chemical feed method and apparatus that uses the solubility limit of a specific chemical to provide a measured dose. The invention includes a container of a specific volume into which a solid chemical is placed and held. The chemical dissolves until it approaches its solubility limit. When the system requires a dose of chemical, the container is flushed and a controlled dose of the chemical is fed in to the system. The invention can be combined with kinetic dissolution to allow a larger dose from a given feeder.
    Type: Application
    Filed: November 8, 2013
    Publication date: August 7, 2014
    Applicant: Evapco, Inc.
    Inventors: John W. LANE, Sarah L. FERRARI
  • Publication number: 20140110318
    Abstract: The blood purification system includes a plurality of monitoring devices (1) with a dialyzer (5) to perform a blood purification treatment on a patient. A dialysate supplying device (2) supplies a dialysate to each of the monitoring devices (1). The plurality of monitoring devices (1) and the dialysate supplying device (2) are connected to each other by a LAN cable a. Predetermined information can be transmitted from the dialysate supplying device (2) to a specified monitoring device (1), out of the plurality of monitoring devices (1). The specified monitoring device (1) can perform an individual operation.
    Type: Application
    Filed: November 30, 2013
    Publication date: April 24, 2014
    Applicant: NIKKISO COMPANY LIMITED
    Inventors: Masaru KUCHIKI, Hiroaki SUZUKI, Harutoshi OKABE
  • Publication number: 20140102964
    Abstract: A filter which is used to remove chips and sludge produced by the processing using a machine tool is backwashed. At this time, a valve provided in an outlet of a filter container is opened based on an elapse time from the start of the supply of compressed air or a cutting fluid to the filter container or a detection value of a pressure inside the filter container. In this way, the supply pressure of the cutting fluid or the compressed air is sufficiently applied to the filter, so that chips adhering to a surface of the filter are sufficiently removed.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Applicant: FANUC CORPORATION
    Inventor: Mitsuyoshi ISHIHARA
  • Publication number: 20140091022
    Abstract: This disclosure relates to making medical solutions. In certain aspects, a method is performed by a data processing apparatus. The method includes introducing liquid into a container that contains a dissolvable solid concentrate in a manner so that a layer of solution above the solid concentrate is maintained at a depth that allows the liquid introduced into the container to agitate the solution adjacent to the solid concentrate to cause mixing of the solid concentrate with the solution.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Wayne Ronald Raiford, Sue-Jane Lee, Martin Joseph Crnkovich, Robert E. Hassard
  • Publication number: 20140069852
    Abstract: A water softening system includes apparatus that recycles a substantial percentage of the solution used for regenerating the system. This system conventionally includes a brine tank and a softening tank through which hard water from a source passes during normal operation. During a regeneration mode, the solution of sodium or potassium ions in the brine tank passes through the softening tank acquiring hardness ions, and then through a nanofilter that passes a much higher proportion of the sodium or potassium ions than the hardness ions from a high pressure side to a low pressure side. The hardness ions flow from the upstream end of the nanofilter through an outlet and into a drain. The liquid passing through the nanofilter contains salt that returns to the brine tank for reuse. A preferred embodiment tests the concentration of softening alkali metal ions in the liquid flowing from the softening tank during a fast rinse portion of the regeneration cycle.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 13, 2014
    Inventor: Peter S. Cartwright
  • Patent number: 8617393
    Abstract: A method and a device for supply of a dialyser in a dialysis unit with dialysis fluid is disclosed. At least one dialysis fluid concentrate is mixed with water to produce the dialysis fluid. The dialysis fluid concentrate is prepared in a reservoir unit in a given amount. A control and arithmetic unit calculates the dialysis fluid rate (Qd) such that, after a given treatment time (TB) has passed, a given residual amount of dialysis fluid concentrate or no residual amount remains in the reservoir unit. It is preferable to empty the reservoir unit by the end of treatment.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: December 31, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Gerard Remkes, Gerhard Wiesen
  • Patent number: 8574438
    Abstract: A dialysate regeneration unit adapted for regenerating a dialysate containing carrier substances comprises a first flow path and a second flow path. The first flow path comprises a first supply unit adapted for adding an acidic fluid to the dialysate flowing in the first flow path, and a detoxification unit located downstream of the first supply unit. The detoxification unit is adapted for removing toxins from the acidified dialysate flowing in the first flow path. The second flow path extends in parallel to the first flow path. The second flow path comprises a second supply unit adapted for adding an alkaline fluid to the dialysate flowing in the second flow path, and a further detoxification unit located downstream of the second supply unit. The further detoxification unit is adapted for removing toxins from the alkalised dialysate flowing in the second flow path.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 5, 2013
    Assignee: Hepa Wash GmbH
    Inventors: Bernhard Kreymann, Catherine Elisabeth Schreiber, Ahmed Nabeel Al-Chalabi
  • Patent number: 8496824
    Abstract: A method and a device for supply of a dialyser in a dialysis unit with dialysis fluid is disclosed. At least one dialysis fluid concentrate is mixed with water to produce the dialysis fluid. The dialysis fluid concentrate is prepared in a reservoir unit in a given amount. A control and arithmetic unit calculates the dialysis fluid rate (Qd) such that, after a given treatment time (TB) has passed, a given residual amount of dialysis fluid concentrate or no residual amount remains in the reservoir unit. It is preferable to empty the reservoir unit by the end of treatment.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: July 30, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Gerard Remkes, Gerhard Wiesen
  • Patent number: 8377308
    Abstract: A dialysate regeneration unit adapted for regenerating a dialysate containing carrier substances comprises a first flow path and a second flow path. The first flow path comprises a first supply unit adapted for adding an acidic fluid to the dialysate flowing in the first flow path, and a detoxification unit located downstream of the first supply unit. The detoxification unit is adapted for removing toxins from the acidified dialysate flowing in the first flow path. The second flow path extends in parallel to the first flow path. The second flow path comprises a second supply unit adapted for adding an alkaline fluid to the dialysate flowing in the second flow path, and a further detoxification unit located downstream of the second supply unit. The further detoxification unit is adapted for removing toxins from the alkalized dialysate flowing in the second flow path.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: February 19, 2013
    Assignee: Hepa Wash GmbH
    Inventors: Bernhard Kreymann, Catherine Elisabeth Schreiber, Ahmed Nabeel Al-Chalabi
  • Patent number: 8226823
    Abstract: A salometer and flow rate sensor assembly for a water softener system including a brine tank containing a brine solution including at least one sensor housing provided in the brine tank, a first detector set associated with the housing and configured for indicating whether the brine solution is adequately concentrated and a second detector set associated with the housing and configured for measuring the brine solution flow rate during brine draw and refill cycles of regeneration.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: July 24, 2012
    Assignee: Culligan International Company
    Inventors: Kerry Quinn, Gene Wayman, Kumudika Premathilake, Bill Lathouris
  • Publication number: 20110290707
    Abstract: An automated self-propelled pool cleaner having a housing, a water pump for moving water through the housing, drive means for moving the pool cleaner over the surface of the salt water pool to be cleaned, and an integral electrochemical chlorine generator mounted in the housing, includes a processor/controller that is programmed to activate the chlorine generator, the pump and drive means in predetermined operational sequences that minimize wear and tear on the water pump and drive means, while at the same time distribute and maintain a safe level of sanitizing chlorine in the pool, to thereby obviate the need for an in-line chlorinator or other chemical additive treatments; an optional automated sensor device can be provided to activate a secondary maintenance program which enables the pool cleaner to operate over prolonged periods of time as the sole means for filtering and sanitizing the pool water.
    Type: Application
    Filed: August 10, 2011
    Publication date: December 1, 2011
    Inventor: Joseph PORAT
  • Publication number: 20110253639
    Abstract: 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.
    Type: Application
    Filed: November 18, 2010
    Publication date: October 20, 2011
    Inventors: Eugene B. Kook, Michael McCague
  • Publication number: 20110198272
    Abstract: The present invention aims at providing a preparative separation/purification system for vaporizing an eluate in a short period of time, while enhancing the efficiency of collecting the target substance by accelerating the initiation of collecting the eluate.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 18, 2011
    Applicant: SHIMADZU CORPORATION
    Inventor: Tomoyuki YAMAZAKI
  • Publication number: 20100258503
    Abstract: A dialysate regeneration unit adapted for regenerating a dialysate containing carrier substances comprises a first flow path and a second flow path. The first flow path comprises a first supply unit adapted for adding an acidic fluid to the dialysate flowing in the first flow path, and a detoxification unit located downstream of the first supply unit. The detoxification unit is adapted for removing toxins from the acidified dialysate flowing in the first flow path. The second flow path extends in parallel to the first flow path. The second flow path comprises a second supply unit adapted for adding an alkaline fluid to the dialysate flowing in the second flow path, and a further detoxification unit located downstream of the second supply unit. The further detoxification unit is adapted for removing toxins from the alkalised dialysate flowing in the second flow path.
    Type: Application
    Filed: December 3, 2007
    Publication date: October 14, 2010
    Inventors: Bernhard Kreymann, Catherine Elisabeth Schreiber, Ahmed Nabeel Al-Chalabi
  • Publication number: 20080283454
    Abstract: Remote delivery of water softener pellets into a water softener by means of vacuum. By using a vacuum the delivery system allows salt to be delivered to great distances to point of use (existing brine tank). This invention will allow people to drive into their garage close to the inventive salt loading hopper and either dump a bag of salt pellets or scoop out of it into the loading hopper, which is located a convenient minimized height off the floor. The current state prior to this invention was to carry the heavy bag of salt to the location of the water softener brine tank, which in most cases is located down the stairs in a basement.
    Type: Application
    Filed: March 13, 2007
    Publication date: November 20, 2008
    Inventor: Michael J. MUNIAK
  • Publication number: 20080142444
    Abstract: A liquid chromatograph apparatus capable of eliminating a deviation of measurement results originating from an instrumental error is provided. According to the present invention, a mobile phase arrival time T of the liquid chromatograph apparatus is determined in advance. The mobile phase arrival time T is a time taken for a mobile phase mixed by a pump to reach a detector. When operating the liquid chromatograph apparatus, sample injection into the mobile phase is started after a time corresponding to the mobile phase arrival time T passes. Collection of data output from the detector is started after a predetermined time passes after starting the sample injection into the mobile phase.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 19, 2008
    Inventor: Kosaku Toyosaki
  • Patent number: 7204930
    Abstract: An oxidation filtration system for cleaning groundwater, the system having an aeration tower and a filtration tank. Within the filtration tank is an upper chamber and a lower chamber. Contained within the lower chamber is a plurality of Styrofoam™ filter media. Separating the upper chamber from lower chamber is a filter media mash which keeps the filter media from entering into the upper chamber. The aerated water from the aeration tower enters into the base of the lower filter chamber and rises through the filter media into the upper filter chamber. As the water passes through the filter media, the dissolved solvents fallout of the groundwater and attach themselves to the Styrofoam™ media. An automated back flushing and clarifying process is also provided using a back flush port and a clarification port, a higher level water sensor in the aeration tower and a programmable logic controller.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 17, 2007
    Assignee: Skagit Farmers Supply
    Inventor: William Nightingale
  • Patent number: 7045057
    Abstract: A process for preparing an ion-exchangeable media within a moving-bed or simulated moving-bed device, which can create a true or simulated media flow, comprising the steps of packing the bed with ion-exchangeable media and passing a solution, containing a mixture of ionic species, through the media, wherein the solution is passed partly or completely counter-current to the media flow direction such that the ionic species are loaded to a desired level upon equilibration.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 16, 2006
    Assignee: Calgon Carbon Corporation
    Inventors: Mark A. Bollinger, Chen-Chou Chiang
  • Patent number: 6596159
    Abstract: A regeneration valve 131 is adapted for automatic activation of ion exchange resin in a water softener. The regeneration valve includes a switching valve 1, a control valve 32, a water injection valve 54, a cam mechanism (FIG. 13) and a timer mechanism which are compactly integrated in a single valve assembly. The timer mechanism includes a timer motor 80 provided with a switching gear adapted to be switched between 50 Hz and 60 Hz (FIGS. 16, 17). The ion exchange resin layer within the resin reservoir 2 can be uniformly activated so that the regeneration process can be achieved at a high efficiency.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Maruyama Mfg. Co., Ltd.
    Inventors: Shigeru Maruyama, Yoshisada Furukawa
  • Patent number: 6468421
    Abstract: A filtering assembly for removing particles from a liquid is positioned coaxially within a vertical, pressure-tight housing 11 having a tangential inlet 21 at an upper end and an outlet 24 at a bottom end thereof. The filtering assembly includes a filter bag 13 positioned on the exterior surface of a perforated cylinder 14. Untreated liquid from the inlet is filtered as it flows radially inward through the filter assembly. A wash-down device 28 is position at an upper end of the housing for removing solids that have built up on the exterior surface of the filter bag. A controller initiates a wash-down of the filter bag upon detecting a predetermined pressure differential across the filter assembly. After closing the inlet and outlet, the controller opens a vacuum-break valve D causing the filter bag to pulse and thereby initially dislodging entrapped solid particles for easy wash-down.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: October 22, 2002
    Inventor: James E. Huckestein
  • Patent number: 6444127
    Abstract: A highly versatile drive arrangement that drives a linearly reciprocating piston of a water conditioning unit control valve without imparting any significant side loads on the support structure for the piston's drive rod or the associated seals. The drive arrangement includes a reversible electric motor and a motion converter, such as a lead screw arrangement, that converts the rotary motion of the electric motor's pinion or other output element to reciprocating linear motion of the piston. The reversible motor can be controlled, based on signals from a motion monitor such as an encoder, to drive the piston to any desired position within the piston upon command. This, in turn, permits the operation of the water conditioning unit to be optimized for prevailing conditions and permits the control valve's operation to be altered if, e.g., the piston becomes stuck or encounters an obstruction.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: September 3, 2002
    Assignee: Clack Corportion
    Inventors: Don Vaughan, Richard W. Wilder, Robert A. Clack
  • Patent number: 6402944
    Abstract: A seal stack, configured for supporting, guiding, and sealing a piston of a water softener control valve or the like, can be preassembled prior to its insertion into the associated valve bore and compressed after it is inserted into the bore. This post-assembly seal stack compression assures reliable assembly of the seal stack, facilitates valve assembly and disassembly, and negates the need to hold tight tolerances in bore diameter design and seal diameter design. The seal stack includes a plurality of static seals, a plurality of dynamic seals which are either combined with or separated from the static seals, and a plurality of spacers that support the seals. Each of the static seals is disposed between two adjacent spacers and seals against a peripheral surface of the bore, and each of the dynamic seals is disposed between two adjacent spacers and seals against the piston.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: June 11, 2002
    Assignee: Clack Corporation
    Inventor: Don Vaughan
  • Patent number: 6235200
    Abstract: A controller and corresponding method have been developed for controlling recharging of a water conditioning apparatus. The apparatus includes an input component for receiving measurements of water usage by the apparatus, a storing component configured to store, for each time slot of a cyclically repeating series of time slots, values dependent upon an average of the measured amounts of usage in that time slot and in at least one other corresponding time slot in a previous cycle, and a determining component configured to determine, at least in part, a time for recharging the apparatus in dependence upon the stored value.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: May 22, 2001
    Assignee: Waterside PLC
    Inventor: Tim Mace
  • Patent number: 6036866
    Abstract: An apparatus and method for operating a system of two or more fluid treatment units connected in parallel, which fluid treatment units need to be regenerated as they become depleted, whereby a method is provided for determining when to initiate a regeneration and which unit to regenerate as well as an apparatus for implementing the same. The decision when to regenerate is based on the number of fluid treatment units in service and the fractional capacity of each fluid treatment unit in service. The fluid treatment selected for regeneration is the one with the least or nearly the least remaining capacity. The apparatus comprises a plurality of fluid treatment units; control valves to selectively connect each fluid treatment unit to a source of untreated fluid, a destination for treated fluid, and a source of regenerant; and a master controller to automatically implement the method of operation by controlling the valves appropriately.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: March 14, 2000
    Assignee: Ecodyne Water Treatment, Inc.
    Inventors: Jeffrey A. Zimmerman, Dean A. Eldrenkamp
  • Patent number: 5910244
    Abstract: A control valve for a fluid treatment system, such as a water softener or a water filter, includes a manifold which mounts a pair of open-ended, cylindrical valve bodies having ports in fluid communication with passages in the manifold. Interchangeable single and double poppet valve assemblies are received into the open ends of the valve body. The poppet valve assemblies have diaphragm valve actuators disposed between chambers that are in fluid communication with selective ones of an array of pilot valves that are also mounted on the manifold. The valve assemblies may be piloted to one position by a spring. A tank adapter connects the manifold to a treatment tank. The tank adapter can be connected to the manifold in two alternate alignments which connect passages in the manifold to the top and bottom of the treatment tank so that co-current or countercurrent flow of regenerative fluid and the fluid to be treated can be alternately selected.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: June 8, 1999
    Assignee: Autotrol Corporation
    Inventors: Theodore C. Stamos, Stephen L. Galbraith, Thomas P. Honzelka
  • Patent number: 5908549
    Abstract: A filtration and regeneration system for in-line filtration of dirt and impurities from a brine/solution having contaminant flushing capabilities and a direct non-saturated feed of liquid resin cleaners to resins or filter media. An alternate embodiment includes the filtration and regeneration system in combination with other components, including a control panel and controlled valving, to provide a brine reclamation system.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: June 1, 1999
    Inventor: Gerald W. Wigen
  • Patent number: 5879559
    Abstract: A control unit for operating a valve system in a water conditioner system includes a drive motor having an output shaft coupled to the valve system, a valve position slide switch, an electronic regeneration controller, and a settable mechanical clock. The electronic controller can be programmed by the use of electrical jumpers/dip switches/control knobs. As the drive motor drives the output shaft coupled to the valve system, the drive motor also contemporaneously rotates a dual lead screw in the valve position slide switch. The dual lead screw drives an electrical contactor along a series of electrical contacts in a closed loop fashion. Each of the discrete electrical contacts corresponds to a position of the valve. The electronic controller controls the position of the valve in accordance with dwell times programmed into the electronic controller. If a demand regeneration scheme is desirable, a hardness setting rotary potentiometer can be used to provide analog electrical control.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: March 9, 1999
    Assignee: Erie Manufacturing Company
    Inventors: Michael R. Schreiner, Sheldon P. Carr, Nick W. Buettner
  • Patent number: 5873996
    Abstract: This invention comprises a process and apparatus for producing purified drinking water from surface or ground fresh water sources using no chemical pretreatment or coagulants, by usage of a positively-charged filtration media to attract the typically negatively-charged suspended solids present in the water source. The process, which can be portable, includes a filtration system having a filtration/recirulcation/backwash component and a disinfection step. The process further includes a system controller which receives electrical signals from float controls to control the filtration, recirculation, and backwash steps. This process produces drinking water which meets or exceeds the guidelines set by the World Health Organization for turbidity and microbiological content.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: February 23, 1999
    Assignee: Puraq Water Systems, Inc.
    Inventors: Lee Rozelle, E. Robert Baumann
  • Patent number: 5792342
    Abstract: A method and apparatus for treating nuisance odor streams is provided. One embodiment of the invention is directed to a method and apparatus in which deodorizing chemical agents are applied to an evaporative reaction pack situated within a gas chamber having an air stream running therethrough. The evaporative reaction pack provides a reaction zone within which the chemical agent is evaporated to facilitate a gas-gas or vapor phase interaction between the chemical agent and odoriferous compounds contained in the air stream. Another aspect of the present invention relates to a method and apparatus for batch processing of sewage treatment agents within a wet well to prevent the formation of undesired compounds. In one embodiment, a predetermined amount of chemical agent, sufficient for treating the amount of sewage that the well can hold, is added to an evacuated wet well in coordination with the pumping of sewage from the wet well.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: August 11, 1998
    Assignee: NuTech Environmental Corporation
    Inventors: Jon D. Heller, Kenneth J. Heller, Timothy Reeves
  • Patent number: 5589058
    Abstract: The invention is directed to a water treatment system including a treatment tank having an ion-exchange mineral bed or filter bed therein, and a valve head assembly disposed on top of and in fluid communication with the treatment tank. The valve head assembly includes a passage for allowing a flow of fluid through the valve head assembly, a vacuum pressure creating device disposed within the passage, a drain disposed within the passage and at a downstream side of the vacuum pressure creating device, and a valve disposed within the passage and at a downstream side of the vacuum pressure creating device. The valve is movable to an open position and a closed position for allowing fluid flow through the vacuum pressure creating device, whereby a portion of fluid flows through the drain and a lesser remaining portion of fluid flows through the valve when the valve is in the open position.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: December 31, 1996
    Assignee: M. J. Bauer Company, Inc.
    Inventor: Matthew J. Bauer
  • Patent number: 5556535
    Abstract: The invention relates to a method for the purification of a polluted liquid, especially a washing liquid used at a washing installation, by sucking the polluted liquid and leading it through at least one filter and next leading back the liquid purified thus to a take-off point, whereby the liquid flow carried through the filter is maintained at a substantially constant level. The invention further relates to an apparatus for carrying out the method comprising a suction line connected to a source of polluted liquid, a discharge line for the purified liquid debouching at a take-off point, at least one filter unit positioned between the suction line and the discharge line, a pump connected therewith in series and a device for limiting the amount of liquid flowing across the filter unit positioned in series with the filter unit.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: September 17, 1996
    Assignee: Micro Tec B.V.
    Inventor: N. Van Der Est