Reginald Leon Clark

US Patent:

6566659, May 20, 2003

Filed:

Jun 4, 1999

Appl. No.:

09/326168

Inventors:

Reginald Wayne Clark - Del Mar CA
James C. Lierman - San Diego CA
Donald Lander - La Jolla CA
Joseph E. Dunn - Crystal Lake IL

Assignee:

PurePulse Technologies, Inc. - San Diego CA

International Classification:

B65B 5508

US Classification:

25045511, 25045311, 422 22, 422 23, 422 24

Abstract:

An approach for sterilizing microorganisms at a target object employs a flashlamp system including means for generating pulses of light, and for deactivating microorganisms within the target object by illuminating the target object with the pulses of light having been generated; a photo-sensitive detector positioned so as to receive a portion of each of the pulses of light as a measure of an amount of light illuminating the target object, for generating an output signal in response thereto; and a control system, coupled to the flashlamp system and the photo-sensitive detector, for determining, in response to the output signal, whether the pulses of light are sufficient to effect a prescribed level of deactivation of microorganisms at the target object. In accordance with this approach sterilizing microorganisms involves steps of generating a pulse of light; deactivating microorganisms at the target object by directing the pulse of light having been generated at the target object; receiving a portion of the pulse of light as a measure of an amount of the pulse of light illuminating the target object; generating an output signal in response to the receiving of the portion of the pulse of light; and determining, in response to the generating of the output signal, whether the pulse of light is sufficient to effect a prescribed level of deactivation of microorganisms at the target object.

US Patent:

7038219, May 2, 2006

Filed:

Oct 26, 2001

Appl. No.:

10/039311

Inventors:

Reginald Wayne Clark - Del Mar CA, US
James C. Lierman - San Diego CA, US
Donald Lander - La Jolla CA, US
Joseph E. Dunn - Crystal Lake IL, US

Assignee:

PurePulse Technologies, Inc. - San Diego CA

International Classification:

A61L 2/10
B65B 55/08

US Classification:

25045511, 422 24

Abstract:

An apparatus, and related methods for sterilizing microorganisms in a container, the apparatus consists of the container including a blister formed therein and a backing material that together with the blister form a cavity in which is contained a contact lens and a preservative fluid. A flashlamp generates high-intensity, short-duration pulses of light for deactivating microorganisms within the container by illuminating the container with the pulses of light having been generated.

US Patent:

7875247, Jan 25, 2011

Filed:

Jul 23, 2007

Appl. No.:

11/781812

Inventors:

Reginald W. Clark - San Diego CA, US
Bernard J. Eastlund - San Diego CA, US
Michael W. Ingram - San Diego CA, US
Joseph C. Stumpf - Carlsbad CA, US

Assignee:

Novatron, Inc. - San Diego CA

International Classification:

A61L 9/20

US Classification:

422121, 422 24, 422120, 25045511

Abstract:

An ultraviolet flux multiplying air sterilization chamber comprises inner surfaces having a diffuse reflective behavior. The sterilization chamber includes an inlet aperture and an outlet aperture for air to flow through said chamber and a light source emitting an ultraviolet light. Due to the reflectivity of the inner surfaces of the chamber, a flux of the ultraviolet light is multiplied by reflecting multiple times from the inner surfaces of the chamber. The inlet and outlet apertures are advantageously configured to reduce the amount of light that escapes from the chamber and increase the amount of photons available in the chamber. In an exemplary embodiment, perforated end panels having diffuse, reflective interior surfaces may be provided over at least a portion of the inlet and outlet apertures.

US Patent:

8404186, Mar 26, 2013

Filed:

Jan 13, 2011

Appl. No.:

13/006143

Inventors:

Reginald W. Clark - San Diego CA, US
Bernard J. Eastland - San Diego CA, US
Michael W. Ingram - San Diego CA, US
Joseph C. Stumpf - Carlsbad CA, US

Assignee:

Novatron, Inc. - San Diego CA

International Classification:

A61L 9/20

US Classification:

422120, 422 24, 25045511

Abstract:

An ultraviolet flux multiplying air sterilization chamber comprises inner surfaces having a diffuse reflective behavior. The sterilization chamber includes an inlet aperture and an outlet aperture for air to flow through said chamber and a light source emitting an ultraviolet light. Due to the reflectivity of the inner surfaces of the chamber, a flux of the ultraviolet light is multiplied by reflecting multiple times from the inner surfaces of the chamber. The inlet and outlet apertures are advantageously configured to reduce the amount of light that escapes from the chamber and increase the amount of photons available in the chamber. In an exemplary embodiment, perforated end panels having diffuse, reflective interior surfaces may be provided over at least a portion of the inlet and outlet apertures.

US Patent:

20040166018, Aug 26, 2004

Filed:

Nov 26, 2003

Appl. No.:

10/724017

Inventors:

Reginald Clark - San Diego CA, US
Bernard Eastlund - San Diego CA, US
Michael Ingram - San Diego CA, US
Joseph Stumpf - Carlsbad CA, US

International Classification:

A61L009/20

US Classification:

422/004000, 422/121000

Abstract:

An ultraviolet flux multiplying air sterilization chamber comprises inner surfaces having a diffuse reflective behavior. The sterilization chamber includes an inlet aperture and an outlet aperture for air to flow through said chamber and a light source emitting an ultraviolet light. Due to the reflectivity of the inner surfaces of the chamber, a flux of the ultraviolet light is multiplied by reflecting multiple times from the inner surfaces of the chamber. The inlet and outlet apertures are advantageously configured to reduce the amount of light that escapes from the chamber and increase the amount of photons available in the chamber. In an exemplary embodiment, packed arrays of fibers, spheres, or other small particles are placed at the inlet and/or outlet to the chamber. These packed arrays provide light scattering events such that the light incident on the packed arrays reflects back with high reflectivity.

US Patent:

20120315184, Dec 13, 2012

Filed:

May 4, 2012

Appl. No.:

13/464431

Inventors:

Reginald W. Clark - San Diego CA, US

Assignee:

NOVATRON, INC. - San Diego CA

International Classification:

A61L 9/20

US Classification:

422 4, 250436

Abstract:

The present disclosure relates to an apparatus and its methods of use which provides a reflective cavity technique that significantly increases the intensity and uniformity of UV energy, enabling very high and uniform UV irradiance. The high UV irradiance and high uniformity lead to previously unobtainable levels of air sterilization.

US Patent:

54477336, Sep 5, 1995

Filed:

Dec 8, 1994

Appl. No.:

8/354233

Inventors:

Andrew H. Bushnell - San Diego CA
Reginald W. Clark - Del Mar CA
Joseph E. Dunn - Vista CA
Samuel W. Lloyd - La Mesa CA

Assignee:

PurePulse Technologies, Inc. - San Diego CA

International Classification:

A23L 332

US Classification:

426237

Abstract:

Microorganisms are deactivated in a food product using an electrode placed into electrical contact with the food product. A current signal is applied to the electrode during a specified time period, causing a deactivating charge to build up on the first electrode. An electrical field results from the deactivating charge having an electric field strength of at least 5,000 volts/cm. Substantially all of a residual charge is removed from the first electrode during a discharge period, such that an approximately zero net charge is delivered to the first electrode following the discharge period, thereby reducing electrophoretic side-effects. The current signal causes an electrical double layer at the electrode to charge to a prescribed voltage. One embodiment, the prescribed voltage does not exceed a reaction voltage of a prescribed reacting material species for more than a prescribed threshold period, thereby reducing electrochemical reactions within the food product.

US Patent:

57865981, Jul 28, 1998

Filed:

May 22, 1996

Appl. No.:

8/651275

Inventors:

Reginald Wayne Clark - Del Mar CA
James C. Lierman - San Diego CA
Donald Lander - La Jolla CA
Joseph E. Dunn - Vista CA

Assignee:

PurePulse Technologies, Inc. - San Diego CA

International Classification:

B65B 5508
A61L 210

US Classification:

25045511

Abstract:

An approach for sterilizing product containers and deactivating microorganisms in such containers employs the container, which, in one embodiment, includes a polyolefin, and which transmits light in a spectrum of from between 180 nm and 300 nm. The container may be coupled to a port through which a product within the container can be withdrawn, or, alternatively, may include a blister that together with a backing material forms a cavity in which a contact lens is contained. A flashlamp system generates high-intensity, short-duration pulses of polychromatic light in a broad spectrum. The pulses of light generated by the flashlamp illuminate the container and thereby deactivate microorganisms within the container. In some embodiments, the container contains a transmissive product that transmits more than about one percent of light at a wavelength of 260 nm. In further embodiments, the high-intensity, short-duration pulses of polychromatic light in a broad spectrum deactivate microorganisms both within the container and within the port.