Richard A Hamilton

US Patent:

6421500, Jul 16, 2002

Filed:

Dec 21, 2000

Appl. No.:

09/742739

Inventors:

J. Kenneth Wittle - Chester Springs PA
Richard A. Hamilton - Aston PA
Charles S. Titus - Newtown Square PA

Assignee:

Electro-Petroleum, Inc. - Wayne PA

International Classification:

E21B 715

US Classification:

392301, 392306, 40512865, 204450, 373 82

Abstract:

An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assembly in a transferred mode of operation, in a non-transferred mode of operation, or according to a controlled sequence of non-transferred and transferred modes of operation. The power supply system includes variable inductors, such as leakage-coupled reactors, for controlling the electrical power supplied to the electrodes for producing a DC arc. The electrode assembly can be incorporated into an arc furnace for processing waste material in the furnace. The electrode assembly is also suitable for use in the practice of in-situ vitrification and remediation of contaminated soil. During in-situ vitrification, the electrode assembly may also be operated in the non-transferred mode, while being withdrawn from holes in the earth, to produce vitrified columns of soil.

US Patent:

6466605, Oct 15, 2002

Filed:

Jun 20, 2000

Appl. No.:

09/597497

Inventors:

J. Kenneth Wittle - Chester Springs PA
Richard A. Hamilton - Aston PA
Charles S. Titus - Newtown Square PA

Assignee:

Electro-Pyrolysis, Inc. - Wayne PA

International Classification:

H05B 7144

US Classification:

373108, 373 2, 373 82

Abstract:

An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assembly in a transferred mode of operation, in a non-transferred mode of operation, or according to a controlled sequence of non-transferred and transferred modes of operation. The power supply system includes variable inductors, such as leakage-coupled reactors, for controlling the electrical power supplied to the electrodes for producing a DC arc. The electrode assembly can be incorporated into an arc furnace for processing waste material in the furnace. The electrode assembly is also suitable for use in the practice of in-situ vitrification and remediation of contaminated soil. During in-situ vitrification, the electrode assembly may also be operated in the non-transferred mode, while being withdrawn from holes in the earth, to produce vitrified columns of soil.

US Patent:

6912354, Jun 28, 2005

Filed:

Oct 15, 2002

Appl. No.:

10/270892

Inventors:

J. Kenneth Wittle - Chester Springs PA, US
Richard A. Hamilton - Aston PA, US
Charles S. Titus - Newtown Square PA, US

Assignee:

Electro-Petroleum, Inc. - Wayne PA

International Classification:

E21B007/15

US Classification:

392301, 204450, 40512865

Abstract:

An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assembly in a transferred mode of operation, in a non-transferred mode of operation, or according to a controlled sequence of non-transferred and transferred modes of operation. The power supply system includes variable inductors, such as leakage-coupled reactors, for controlling the electrical power supplied to the electrodes for producing a DC arc. The electrode assembly can be incorporated into an arc furnace for processing waste material in the furnace. The electrode assembly is also suitable for use in the practice of in-situ vitrification and remediation of contaminated soil. During in-situ vitrification, the electrode assembly may also be operated in the non-transferred mode, while being withdrawn from holes in the earth, to produce vitrified columns of soil.

US Patent:

8388618, Mar 5, 2013

Filed:

Jul 18, 2008

Appl. No.:

12/175756

Inventors:

Gregory Fridman - Philadelphia PA, US
Alexander Fridman - Philadelphia PA, US
Alexander F. Gutsol - San Ramon CA, US
Gennady Friedman - Richboro PA, US
David Staack - College Station TX, US
Richard J. Hamilton - Jenkintown PA, US

Assignee:

Drexel University - Philadelphia PA
Philadelphia Health & Education Corporation - Philadelphia PA

International Classification:

A61B 18/18

US Classification:

606 49, 606 40, 606 41, 607 99

Abstract:

The use of non-thermal plasma to treat mucus membrane bleeding is described herein. A non-thermal plasma is generated using an apparatus having a first electrode that receives alternating electrical potentials from a power supply. When placed in an appropriate location proximate to tissue, a non-thermal plasma is generated, the second electrode being human tissue, blood, etc. To reduce the likelihood of an arc being generated, potentially causing tissue damage or pain, the first electrode is partially encapsulated by a dielectric. The non-thermal plasma is applied to the area of bleeding for treatment.

US Patent:

60758066, Jun 13, 2000

Filed:

Dec 23, 1998

Appl. No.:

9/221633

Inventors:

J. Kenneth Wittle - Chester Springs PA
Richard A. Hamilton - Aston PA
Peter James Wilver - Valley Township Montour County PA

Assignee:

Electro-Pyrolysis Inc - Wayne PA
Svedala Industries Inc. - Danville PA

International Classification:

H05B 706

US Classification:

373 91

Abstract:

In an arc furnace or melter furnace employing concentric graphite inner and outer electrodes, the accumulations of tolerances, distortion and mechanical forces can cause a loss of concentricity leading to reduced performance and eventually to electrode degradation. To avoid that condition, a plurality of insulating spherical or cylindrical spacers are disposed in the annular gap between the inner and outer electrodes. The spacers are held in position by arcuate recesses in the outer surface of the inner electrode or in the inner surface of the outer electrode. The electrodes may be constructed in segments that are assembled by threading one segment into another segment.

US Patent:

56732856, Sep 30, 1997

Filed:

Jun 27, 1994

Appl. No.:

8/266209

Inventors:

J. Kenneth Wittle - Chester Springs PA
Richard A. Hamilton - Aston PA
Charles S. Titus - Newtown Square PA

Assignee:

Electro-Pyrolysis, Inc. - Wayne PA

International Classification:

F27D 300

US Classification:

373 82

Abstract:

An electrode assembly comprising concentric tubular electrodes is provided for high temperature processing of materials. The electrode assembly is connected with a power supply that includes switching means for alternatively operating the electrode assembly in a transferred mode of operation, in a non-transferred mode of operation, or according to a controlled sequence of non-transferred and transferred modes of operation. The power supply system includes variable inductors, such as leakage-coupled reactors, for controlling the electrical power supplied to the electrodes for producing a DC arc. The electrode assembly can be incorporated into an arc furnace for processing waste material in the furnace. The electrode assembly is also suitable for use in the practice of in-situ vitrification and remediation of contaminated soil. During in-situ vitrification, the electrode assembly may also be operated in the non-transferred mode, while being withdrawn from holes in the earth, to produce vitrified columns of soil.

US Patent:

20210307422, Oct 7, 2021

Filed:

Apr 2, 2021

Appl. No.:

17/221233

Inventors:

Genevieve Dion - Philadelphia PA, US
Richard J. Hamilton - Jenkintown PA, US
Amy L. Stoltzfus - Kirkland WA, US
Chelsea E. Amanatides - Philadelphia PA, US
Keith Taylor - Philadelphia PA, US
Leighton Cline - Philadelphia PA, US
Sol Schade - Philadelphia PA, US

International Classification:

A41D 13/11
A62B 9/06

Abstract:

A personal protective respirator comprising a facepiece housing configured to cover the nose and mouth and conform to a face of an intended wearer along a perimeter of the facepiece housing and at least two straps, wherein the facepiece housing and the straps consist of a knitted material and the facepiece housing conforms to the face of the intended wearer such that sufficient fit is achieved to attain a fit factor of at least 100 on the intended wearer according to OSHA fit testing procedures. Also, a personal protective respirator comprising a face portion configured to cover a nose and mouth of an intended wearer and to conform to a face of the intended wearer and at least four straps, wherein the mask meets NIOSH requirements for N95 respirator performance and maintains this level of performance after being washed. Finally, a method for making the noted personal protective respirators.