Lee C Ditzler

US Patent:

6372096, Apr 16, 2002

Filed:

May 25, 2000

Appl. No.:

09/579339

Inventors:

Lee C. Ditzler - Diablo CA

Assignee:

Novazone - Livermore CA

International Classification:

H05F 300

US Classification:

204164, 42218607

Abstract:

A system for generating ozone by corona discharge comprises a corona discharge ozone generating cell. A downstream pressure regulator is disposed downstream and coupled to the corona discharge ozone generating cell for setting and automatically maintaining a desired cell pressure for the ozone generating cell so that effects of variances caused by processing of the ozone-containing gas downstream of the ozone generating cell on ozone production by the ozone generating cell are eliminated or at least minimized. A flow control orifice is provided upstream of the ozone generating cell for controlling the flow of incoming gas to the ozone generating cell for producing the ozone-containing gas. An upstream pressure regulator is provided upstream of the ozone generating cell for maintaining an inlet pressure of the incoming gas entering the ozone generating cell. After setting the desired cell pressure in the downstream pressure regulator, the desired flow control through the flow control orifice, and a voltage level for operating the ozone generating cell, the upstream pressure regulator can be adjusted to the optimum level to maximize ozone production.

US Patent:

20100028510, Feb 4, 2010

Filed:

Aug 1, 2008

Appl. No.:

12/184845

Inventors:

Lee C. Ditzler - Diablo CA, US
Cliff M. Coles - Brentwood CA, US

Assignee:

INVENX - Pleasanton CA

International Classification:

A23L 3/3454

US Classification:

426331, 426335

Abstract:

Nuts, grains, seeds and other dry or dried foodstuffs are disinfected by a process that entails infusion with gaseous ozone and treatment with liquid non-ozone disinfectant, each treatment being preceded by a decompression of the foodstuffs to a pressure below atmospheric and each treatment utilizing an inert gas to achieve the exposure to the treatment agents at a pressure above atmospheric. The process achieves control of infestations at substantially all stages of the life cycle of pests, bacteria, and mold byproducts with which the product may be infested, and can do so in less than an hour.

US Patent:

59683520, Oct 19, 1999

Filed:

Oct 9, 1998

Appl. No.:

9/169570

Inventors:

Lee C. Ditzler - Diablo CA

Assignee:

Novazone - Livermore CA

International Classification:

C02F 178
B01F 304
B01F 1502

US Classification:

210220

Abstract:

Intimate contact of water with a treatment gas is achieved by mixing the gas and water co-currently in a conduit containing static mixers, and directing the conduit into a gas contact apparatus that contains coaxial inner and outer tanks, the inner tank being open within, and shorter than, the outer tank, leaving a head space above the top of the inner tank. The conduit discharges the gas-water mixture at the base of the interior of the inner tank, permitting the water to flow upward through the annular space between the inner tank and the conduit, then over the weir formed by the open upper end of the inner tank and downward through the annular space between the inner and outer tanks. Gas is separated from the water at the head space, and treated degasified water leaves the apparatus at the base of the outer tank.

US Patent:

39916146, Nov 16, 1976

Filed:

Jan 19, 1976

Appl. No.:

5/650435

Inventors:

Lee C. Ditzler - Danville CA

Assignee:

Universal Engineered Systems, Inc. - Pleasanton CA

International Classification:

G01F 120
G01F 2326

US Classification:

73215

Abstract:

A transducer for measuring gravital fluid flow includes a composite weir member having a downstream Palmer-Bowlus flume section and an upstream uniform channel section. A flexible sealed envelope partially filled with dielectric fluid is disposed in the bottom of the uniform channel, and is in open flow communication with a sealed vertical column secured to the channel wall. A pair of capacitive probe electrodes are disposed within the column and the envelope. Fluid pressure of the liquid flowing in the weir forces the dielectric fluid up into the column, thereby altering the capacitive coupling of the electrodes in a manner which is a direct function of the amount of fluid flow in the weir.

US Patent:

59450738, Aug 31, 1999

Filed:

Sep 12, 1997

Appl. No.:

8/928696

Inventors:

Lee C. Ditzler - Diablo CA
James R. Goad - Newark CA

Assignee:

Novazone - Livermore CA

International Classification:

B01J 1908

US Classification:

42218619

Abstract:

Ozone generation cells using corona discharge to convert molecular oxygen to ozone are cooled by thermoelectric cooling devices clamped between the outer surface of the cell and a heat sink. The heat sink is preferably a finned structure permitting heat dissipation by air passing between the fins, avoiding the need for water cooling of the cell.

US Patent:

51145766, May 19, 1992

Filed:

Oct 11, 1990

Appl. No.:

7/595502

Inventors:

Lee C. Ditzler - Diablo CA
Ronald Lemberger - Danville CA
Willam K. McGrane - Pleasanton CA
Jerry F. Choy - Fremont CA

Assignee:

TriNeos - Dublin CA

International Classification:

C02F 178

US Classification:

2101951

Abstract:

Biological decontamination and the avoidance of accumulation of dissolved solids are both achieved in captured and recirculated water systems by a continuously operating system involving the use of a chemical filtration unit, removal of dissolved solids as they are concentrated at the filtration unit, a disinfectant treatment, and the protection of the chemical filtration unit from degradation by the disinfectant where necessary.

US Patent:

48775886, Oct 31, 1989

Filed:

Jun 17, 1988

Appl. No.:

7/210469

Inventors:

Lee C. Ditzler - Diablo CA
Ronald F. Lemberger - Danville CA
Cynthia L. Slezak - Pleasanton CA

Assignee:

Trineos - Pleasanton CA

International Classification:

C01B 1311

US Classification:

42218619

Abstract:

Ozone is added to captured water by a method and apparatus which involves corona discharge into an oxygen-containing gas in regions in a generator which alternate with regions where the newly formed ozone is cooled. The alternating corona and cooling regions permit the ozone to form without being thermally decomposed as soon as it is formed. Also disclosed is an overall system and method of controlling the level of dissolved ozone in a body of captured water which modulates the output of an ozone generator in accordance with readings of oxidation-reduction potential in the water.

US Patent:

50027395, Mar 26, 1991

Filed:

Sep 11, 1990

Appl. No.:

7/580683

Inventors:

Lee C. Ditzler - Diablo CA
Jerry F. Choy - Fremont CA
Ronald F. Lemberger - Danville CA

Assignee:

Trineos - Pleasanton CA

International Classification:

B01J 1908

US Classification:

42218619

Abstract:

An ozone generation cell operating by corona discharge in an annular passage with regions of corona discharge alternating with corona-free regions where cooling takes place is improved by the incorporation of corrugated, deformable heat transfer walls in the corona-free regions. These corrugated walls impart flexibility to the structure, and thereby relieve the strain on the structural components. This permits the heat transfer wall, which is the outer of the two cylinders defining the annular passage, to center the inner of the two cylinders inside it and thus achieve a more uniform gap width in the corona regions. This is of value since the inner cylinder is preferably made of a ceramic material and not perfectly straight. The corrugations also promote turbulent flow in both the coolant medium and the gas mixture in which the ozone is generated.