Christopher A Hansen

US Patent:

6471876, Oct 29, 2002

Filed:

Nov 27, 2000

Appl. No.:

09/722911

Inventors:

Christopher L. Hansen - Newbury OH
Samuel Mason - Wickliffe OH
Mohan L. Sanduja - Flushing NY
Carl Horowitz - Brooklyn NY
Felicia Dragnea - Forest Hills NY
Paul Thottathil - New Hyde Park NY

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

C02F 150

US Classification:

210764, 210501, 210504, 252175

Abstract:

Filtration media having germicidal properties for use in filtering particles and deactivating, removing and/or destroying microorganisms from a feed liquid passing therethrough. The filtration media includes an effective amount of a germicidal chemically grafted and covalently bonded to a surface of the media. The germicidal grafted filter media is prepared by contacting the media with a grafting solution comprising an anionic monomer, a catalyst, a graft initiator and a germicide and subsequently curing tile media at an elevated temperature to chemically graft a polymerized salt of the polymerizable anionic monomer and the cationic germicide onto a surface of the media. Filter media suitable for use in the present invention include ceramic spheroids, hollow glass spheres, polymeric type media and thermoset coated glass spheres. The germicidal grafted filter media is effective for deactivating, destroying and/or removing from a feed liquid, such as water, , staphylococcus, aspergsillus, klebisiella, , rotavirus, cysts and other microorganisms. Moreover, the filter media can be used repeatedly without a decrease in its germicidal effectiveness.

US Patent:

6994794, Feb 7, 2006

Filed:

Nov 27, 2001

Appl. No.:

10/432557

Inventors:

Christopher B. Hansen - Newbury OH, US
Samuel Mason - Wickliffe OH, US
Mohan L. Sanduja - Flushing NY, US
Carl Horowitz - Brooklyn NY, US
Paul Thottathil - New Hyde Park NY, US
Felicia Dragnea - Forest Hills NY, US

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

C02F 1/50

US Classification:

210764, 2105021, 210504, 252175

Abstract:

Filtration media having germicidal for use in filtering particles and deactivating, removing and/or destroying microorganisms from a feed liquid passing through the media. The filtration media includes an effective amount of at least one germicidal agent associated to monomers polmerized and chemically grafted and covalently bonded to the surface of the media. The germicidal filter media is prepared by contacting the media with a grafting solution comprising one or more monomers, a catalyst, a surface agent, a curign agent, at least one graft initiator, and at least on germicide and subsequently curing the media at an elevated temperature to chemically graft the polmerizable monomers onto a surface of the media and associate at least one germicide thereto. Filter media suitable for use in the present invention include ceramic spheroids, hollow glass spheres, polmeric type meida, thermoset coated glass spheres, and crystalline microporous materials, such as zeolites. The germicidal filter media is effective for deactivating, destroying and/or removing from a feed liquid, such as water, escherichia coli, salmonella choleraesuis, staphylococcus, aspergsillus, klebisiella, listeria, clostridium, rotavirus, cysts and other microorganisms.

US Patent:

8337686, Dec 25, 2012

Filed:

Apr 23, 2008

Appl. No.:

12/445848

Inventors:

David F. Rath - Dundas, CA
Christopher L. Hansen - Newbury OH, US
Lyle Edward Kirman - Cleveland Heights OH, US
Christopher S. Putka - Cleveland OH, US
James E. Bolton - Burlington, CA

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

B01D 61/44
B01D 61/48

US Classification:

204536, 204537, 204631, 204632, 205747, 205748

Abstract:

A water treatment apparatus that includes a cation exchange chamber containing a cation exchange resin and an anion exchange chamber containing an anion exchange resin. A bipolar interface is located between the resin chambers and defines a zone of water disassociation. A cathode communicates with the cation exchange chamber through a cation exchange membrane. An anode communicates with the anion exchange chamber through an anion exchange membrane. Dilution or flushing water flows through cathode and anode chambers and conveys captured ions to a drain or other waste connection. A baffle may be used in some configurations to divide a resin chamber into an exhausted resin region and a regenerated resin region and causes incoming water to flow through the exhausted resin region first. The exhausted resin region is located near its associated electrode, thus improving the electrical efficiency of the cell. In an alternate design, the apparatus includes a cathode/anode chamber, an anode chamber and an auxiliary electrode chamber disposed between the cathode/anode chamber and a cation exchange media chamber.

US Patent:

20020121481, Sep 5, 2002

Filed:

Nov 1, 2001

Appl. No.:

10/033331

Inventors:

Paul Peterson - Cuyahoga Falls OH, US
George Jordan - Chardon OH, US
Stuart Park - Burton OH, US
Christopher Hansen - Newbury OH, US
Lisa Heiden - Chardon OH, US

Assignee:

Kinetico Incorporated

International Classification:

B01D015/00

US Classification:

210/673000, 210/269000

Abstract:

A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed along the flow path for removing sulfur or H2S from the water. A system controller controls the frequency of regeneration of an exhausted tank as well as the regeneration cycle. The system includes a regenerant reservoir containing 5.25% sodium hypochloride which is generally available as household bleach. During a regeneration cycle, the bleach is drawn through a restrictor preferably in the form of a capillary tube that forms part of a draw tube assembly.

US Patent:

20110284434, Nov 24, 2011

Filed:

May 19, 2011

Appl. No.:

13/111254

Inventors:

Christopher L. Hansen - Newbury OH, US
Peter Halemba - Russell OH, US

International Classification:

C02F 1/00

US Classification:

210 90, 210143

Abstract:

A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed along the flow path for treating water as it travels from the inlet to the outlet. A system controller controls which of the tanks is on-line and which of the tanks is off-line and controls the regeneration of an exhausted tank. A multi-stage, spring-loaded control valve assembly controls the communication of fluid to a regeneration control turbine. The control valve assembly includes a piston head and a seat-carrying stem. An upper end of the stem is coupled to the piston head in an arrangement that allows relative movement between the stem and the piston head. A spring urges the stem away from the piston head. An opposite end of the stem carries a seat. When a signal pressure is applied to the piston head, initial movement of the head compresses the spring but does not produce movement in the stem and, hence, the seat. After a predetermined relative movement of the piston head with respect to the seat, further movement produces movement in the seat, thereby causing the seat to disengage its associated sealing surface, whereupon the spring produces further opening movement in the seat. The present invention improves the operation of the control valve assembly, even in water treatment applications where source water is supplied at a relatively low pressure.

US Patent:

62142143, Apr 10, 2001

Filed:

Mar 29, 1999

Appl. No.:

9/281989

Inventors:

Christopher L. Hansen - Newbury OH
Stuart Park - Burton OH
Peter Halemba - Russell OH

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

B01D 2426

US Classification:

210106

Abstract:

A water treatment system including a pair of water treatment tanks, each tank defining a flow path extending from a tank inlet to a tank outlet and containing a water treatment material disposed along the flow path for treating water as it travels from the inlet to the outlet. A system controller controls which of the tanks is on-line and which of the tanks is off-line and controls the regeneration of an exhausted tank. The system controller is operative to provide a final rinse in the service direction. This is accomplished by a purge valve which communicates the outlet of a tank being regenerated to a drain under predetermined operating conditions. The operation of the purge valve is responsive to fluid signals applied to an inlet valve and an outlet valve associated with the tank being regenerated. More specifically, the fluid signals that close the outlet valve and open the inlet valve, are utilized to cause the opening of the purge valve in order to communicate the tank outlet with the drain. The invention obviates the need for separate fluid pressure signals for the purge valve.

US Patent:

58274278, Oct 27, 1998

Filed:

Mar 11, 1996

Appl. No.:

8/613484

Inventors:

Christopher Lee Hansen - Newbury OH

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

B01D 2500

US Classification:

210232

Abstract:

A tank coupler for releasably interconnecting serially connected tanks. The tank coupler includes threaded engagement portions which are threadedly engageable with ports formed in the tanks. The coupler defines a central fluid passage which receives in a sealing relationship, a riser tube associated with a first tank and a riser tube associated with a second tank. A snap fit mechanism maintains the engagement of one riser tube with the fluid passage in order to control separation of the riser tube from the coupler when the tanks are separated. O-ring seals mounted in grooves forming part of the fluid passage sealingly engage the periphery of the riser tubes and inhibit fluid leakage between the riser tubes and the coupler. The tank coupler also defines a second fluid passage which cross-communicates the interiors of the tanks. Distributors mounted on opposite ends of the second fluid passage inhibit material from moving from one tank to the other while permitting fluid flow.

US Patent:

54909325, Feb 13, 1996

Filed:

Apr 1, 1994

Appl. No.:

8/222077

Inventors:

Christopher L. Hansen - Newbury OH
Stuart L. Park - Burton OH

Assignee:

Kinetico Incorporated - Newbury OH

International Classification:

B01D 1712

US Classification:

210541

Abstract:

A control valve for a water treatment system which includes a turbine rotatably mounted within a water receiving chamber. A pair of nozzles communicate water from a water receiving chamber to the turbine in a driving relationship. The nozzles each define a passage, preferably converging slightly in cross-section and defining centerlines that converge and intersect at a region swept by the turbine. Preferably, the intersection of the centerlines occurs intermediate a circle defined by central regions of the turbine blades and a circle defined by peripheral edges of the turbine blades. At least one of the nozzles is slidably held in a slot formed in a dividing wall forming part of the control valve and is replaceable by a plug. A confronting surface defines a uniform gap between an outlet side of the nozzles and a peripheral portion of the turbine. In a further embodiment, the nozzle receiving slot includes a slot extension through which water can flow into the receiving chamber, bypassing the nozzle in proportion to the flow passing the nozzles.