Christopher Ray Schulz

US Patent:

6495036, Dec 17, 2002

Filed:

Jan 8, 2001

Appl. No.:

09/756495

Inventors:

Christopher R. Schulz - Aurora CO 80016
James A. Reilly - Shrewsbury MA 01545

International Classification:

C02F 178

US Classification:

210199, 210205, 261 38, 261 74, 261DIG 42, 42218607

Abstract:

A device for introducing ozone uniformly into water flowing through a conduit for disinfecting the water. An ozone-contacting vessel is provided and includes a downflow tube through which water is caused to flow. The downflow tube is positioned vertically within a diffusion chamber. Within the downflow tube are a plurality of layers of transversely extending porous elements that are in communication with a source of ozone to provide a relatively uniform distribution of fine ozone bubbles over the cross-sectional area of the downflow tube. The downflow tube can be J-shaped, to convey ozonated water into downstream ozone reaction cells to permit oxidation or disinfection of the water being treated. An outlet seal plate is provided at the J-tube outlet to prevent backflow into the J-tube upon shutdown of the contactor cell containing the J-tube.

US Patent:

6596542, Jul 22, 2003

Filed:

Jan 8, 2001

Appl. No.:

09/756371

Inventors:

Christopher R. Schulz - Aurora CO 80016

International Classification:

A61L 210

US Classification:

436 1, 436164, 422 8205, 422 24, 250372, 2504741

Abstract:

A chemical actinometer for determining the absolute level of exposure to ultraviolet light of a fluid to be treated for disinfection purposes. The actinometer includes a translucent sample cell through which the chemical actinometric fluid flows. The area of exposure of the actinometric fluid is controlled by allowing the ultraviolet light to pass through only a portion of the sample cell. A suitable actinometric fluid is a combination of iodide and iodate in a solution. The sample cell is positioned within an ultraviolet disinfection reactor at a position to receive ultraviolet light from the ultraviolet light source.

US Patent:

6762403, Jul 13, 2004

Filed:

May 24, 2002

Appl. No.:

10/154983

Inventors:

Christopher R. Schulz - Aurora CO 80016

International Classification:

G01J 150

US Classification:

2502521, 2504741

Abstract:

A tubular holder for an actinometric monitoring element for monitoring the irradiance of ultraviolet light within a liquid to be treated for microorganism control. The holder extends into the interior of a vessel or a pipeline that carries a fluid to be treated by exposure to ultraviolet light. A transparent end cap is carried at the end of the holder that is within the vessel or pipeline. Positioned within the holder is an actinometric monitoring element that can be either a transparent container for an actinometric solution or a photocell, each for sensing the irradiance of ultraviolet light emitted by light sources positioned within the vessel or pipeline. The holder is removably received in a sleeve that extends through the wall of the vessel or pipeline.

US Patent:

6940075, Sep 6, 2005

Filed:

Jul 23, 2003

Appl. No.:

10/625835

Inventors:

Christopher R. Schulz - Aurora CO, US

International Classification:

B01J019/12

US Classification:

250432R, 210748, 210150, 4221863

Abstract:

A disinfection reactor for disinfecting liquid, such as water from a water filtration plant, by exposing the liquid to ultraviolet light. The reactor includes a generally rectangular reactor vessel and two or more medium pressure ultraviolet lamps that extend within the reactor vessel in a direction transverse to the direction of liquid flow therethrough. The reactor vessel includes liquid guide surfaces that guide liquid to flow in a converging flow path having a reduced-area flow region in the vicinity of the ultraviolet lamps. The ultraviolet lamps are positioned spaced from and between the guide surfaces.

US Patent:

7364654, Apr 29, 2008

Filed:

Jan 5, 2005

Appl. No.:

11/029857

Inventors:

Christopher Schulz - Centennial CO, US

International Classification:

C02F 1/32

US Classification:

2101981, 210278, 210279, 210288, 250436

Abstract:

A method and apparatus are provided for a water treatment system that includes both filtration and ultraviolet disinfection elements in a single unit. Various embodiments include a complete treatment system having replaceable filter elements or granular filter media and ultraviolet disinfection within a single vessel. A control valve controls flow through the system in filtering, backwashing, cleaning, and rinsing modes of operation. Other embodiments include couplings that may be adapted to new or existing treatment systems to provide ultraviolet disinfection to a vessel containing replaceable filter elements or granular filter media. The coupling is adapted to receive a control valve assembly that controls flow through the vessel in filtering, backwashing, cleaning, and rinsing modes of operation.

US Patent:

20040050798, Mar 18, 2004

Filed:

Sep 14, 2002

Appl. No.:

10/243971

Inventors:

Christopher Schulz - Aurora CO, US
Stephen Lohman - Conifer CO, US

International Classification:

C02F001/78

US Classification:

210/760000

Abstract:

A method and apparatus for disinfecting the interior of pipelines and conduits, particularly water mains. Ozone is utilized as the disinfectant vehicle to neutralize microbial contamination of the conduit. An ozone generation system includes a venturi injector for introducing ozone into pressurized water to provide a treating solution that is introduced into and that flows along a predetermined length of the conduit to be treated. The ozone concentration is regulated to maintain an ozone residual at the conduit outlet of about 0.1 mg/L to about 0.2 mg/L for a time sufficient to assure the desired level of disinfection of the conduit interior.

US Patent:

20040053415, Mar 18, 2004

Filed:

Sep 14, 2002

Appl. No.:

10/244147

Inventors:

Christopher Schulz - Aurora CO, US

International Classification:

G01N035/08
G01N033/00

US Classification:

436/135000, 436/052000, 436/053000, 422/081000, 422/082000, 422/103000

Abstract:

Apparatus for determining the ozone decay rate constant for an ozone-in-water solution. The apparatus includes a single ozone residual sensor, to which a sample flow is directed to measure the initial ozone residual concentration, and to which a delayed flow stream of the same solution is directed to measure the ozone residual concentration after passage of a particular time interval. The time delay of the flow stream is achieved by passing the flow stream through a chamber that includes a tubing coil through which the sample stream flows, after which the ozone residual concentration of the delayed sample stream is measured by the same ozone residual sensor. A portion of the incoming flow stream is diverted to flow through the chamber to maintain the delayed sample stream at substantially the same temperature as the incoming flow stream.

US Patent:

20050133431, Jun 23, 2005

Filed:

Dec 23, 2003

Appl. No.:

10/743032

Inventors:

Christopher Schulz - Centennial CO, US

International Classification:

C02F009/00
C02F009/12
C02F001/32

US Classification:

210256000, 210748000, 210209000

Abstract:

An in-home water treatment system that provides three stages of treatment for incoming water. The first treatment stage is a particulate removal stage, utilizing a spun fiber filter pad. The second treatment stage is a chemical compound removal stage, utilizing a carbon block filter. The third treatment stage is a disinfection stage utilizing an ultraviolet lamp. The three treatment stages are contained within a tubular enclosure to provide stage-by-stage treatment of the incoming water to improve its quality.