Daniel B Phillips

US Patent:

6956316, Oct 18, 2005

Filed:

Sep 17, 2004

Appl. No.:

10/943679

Inventors:

Ross Alan Tessien - Nevada City CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

B06B001/06
H01L041/08

US Classification:

31032312, 31032313, 31032318, 31032319, 310328, 310334

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is either attached to the exterior surface of the spherical cavitation chamber with the same threaded means, a different threaded means, or a more permanent coupling means such as brazing, diffusion bonding or epoxy. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber has a spherical curvature greater than the spherical curvature of the external surface of the chamber, thus providing a ring of contact between the acoustic driver and the cavitation chamber. The area of the contact ring is increased in one embodiment by chamfering a portion of the head mass such that the chamfered surface has the same curvature as the external surface of the chamber.

US Patent:

6958568, Oct 25, 2005

Filed:

Sep 17, 2004

Appl. No.:

10/943680

Inventors:

Ross Alan Tessien - Nevada City CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

B06B001/06
H01L041/08

US Classification:

31032312, 31032313, 31032318, 31032319, 310328, 310334

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is permanently attached to the exterior surface of the spherical cavitation chamber via brazing or diffusion bonding. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber has a spherical curvature equivalent to the spherical curvature of the external surface of the chamber, thus providing maximum coupling efficiency between the acoustic driver and the cavitation chamber. In at least one embodiment a void filling material is interposed between one or more pairs of adjacent surfaces of the driver assembly.

US Patent:

6958569, Oct 25, 2005

Filed:

Sep 1, 2004

Appl. No.:

10/931918

Inventors:

Ross Alan Tessien - Nevada City CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

H01L041/08

US Classification:

310325, 310322, 31032301, 310337

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is either attached to the exterior surface of the spherical cavitation chamber with the same threaded means, a different threaded means, or a more permanent coupling means such as brazing, diffusion bonding or epoxy. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is in contact with the external surface of the chamber has a spherical curvature equivalent to the spherical curvature of the external surface of the chamber, thus providing maximum surface contact between the driver assembly and the chamber. In at least one embodiment, a void filling material is interposed between one or more pairs of adjacent surfaces of the driver assembly and/or the driver assembly and the exterior surface of the cavitation chamber.

US Patent:

6960869, Nov 1, 2005

Filed:

Sep 17, 2004

Appl. No.:

10/944237

Inventors:

Ross Alan Tessien - Nevada City CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

H01L041/08

US Classification:

310325, 31032301, 310322, 310337

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is either attached to the exterior surface of the spherical cavitation chamber with the same threaded means, a different threaded means, or a more permanent coupling means such as brazing, diffusion bonding or epoxy. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber has a spherical curvature less than the spherical curvature of the external surface of the chamber, thus providing a ring of contact between the acoustic driver and the cavitation chamber. In at least one embodiment, a void filling material is interposed between one or more pairs of adjacent surfaces of the driver assembly and/or the driver assembly and the exterior surface of the cavitation chamber.

US Patent:

7049730, May 23, 2006

Filed:

Mar 11, 2005

Appl. No.:

11/078057

Inventors:

Ross Alan Tessien - Grass Valley CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

B06B 1/06
H01L 41/08

US Classification:

31032312, 31032313, 31032318, 31032319, 310328, 310334

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The head mass of the driver assembly is permanently attached to the exterior surface of the spherical cavitation chamber via brazing or diffusion bonding. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber has a spherical curvature equivalent to the spherical curvature of the external surface of the chamber, thus providing maximum coupling efficiency between the acoustic driver and the cavitation chamber. In at least one embodiment a void filling material is interposed between one or more pairs of adjacent surfaces of the driver assembly.

US Patent:

7057328, Jun 6, 2006

Filed:

Mar 21, 2005

Appl. No.:

11/085361

Inventors:

Ross Alan Tessien - Grass Valley CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

B06B 1/06
H01L 41/08

US Classification:

31032312, 31032313, 31032318, 31032319, 310328, 310334

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is either attached to the exterior surface of the spherical cavitation chamber with the same threaded means, a different threaded means, or a more permanent coupling means such as brazing, diffusion bonding or epoxy. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber has a spherical curvature greater than the spherical curvature of the external surface of the chamber, thus providing a ring of contact between the acoustic driver and the cavitation chamber. The area of the contact ring is increased in one embodiment by chamfering a portion of the head mass such that the chamfered surface has the same curvature as the external surface of the chamber.

US Patent:

7073258, Jul 11, 2006

Filed:

Sep 7, 2004

Appl. No.:

10/935364

Inventors:

Ross Alan Tessien - Nevada City CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

B21D 52/56
B23P 22/02
B06B 1/00

US Classification:

2989009, 29451, 422128

Abstract:

A method of constructing a port assembly for use with a single piece cavitation chamber, typically a spherical chamber, is provided. The port assembly includes a cone-shaped port, a cone-shaped mounting ring and a central member mounted within the mounting ring. The mounting ring is located within the chamber prior to the final assembly of the chamber itself, i. e. , at a time in which the chamber is comprised of multiple pieces. After the final assembly of the chamber is complete, a central member such as a window, plug, gas feed-thru, liquid feed-thru, mechanical feed-thru or sensor assembly is placed within the chamber. The mounting ring is then pulled into place within the cone-shaped port, followed by the central member. To expedite assembly, specialized tools can be used to pull the mounting ring and the central member into place.

US Patent:

7148606, Dec 12, 2006

Filed:

Mar 18, 2005

Appl. No.:

11/083580

Inventors:

Ross Alan Tessien - Grass Valley CA, US
Dario Felipe Gaitan - Nevada City CA, US
Daniel A. Phillips - Grass Valley CA, US

Assignee:

Impulse Devices, Inc. - Grass Valley CA

International Classification:

H01L 41/08

US Classification:

310325, 31032301

Abstract:

An acoustic driver assembly for use with a spherical cavitation chamber is provided. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass, coupled together with a centrally located threaded means (e. g. , all thread, bolt, etc. ). The driver assembly is either attached to the exterior surface of the spherical cavitation chamber with the same threaded means, a different threaded means, or a more permanent coupling means such as brazing, diffusion bonding or epoxy. In at least one embodiment, the transducer is comprised of a pair of piezo-electric transducers, preferably with the adjacent surfaces of the piezo-electric transducers having the same polarity. The surface of the head mass that is adjacent to the external surface of the chamber is non-flat and has a spherical curvature less than the spherical curvature of the external surface of the chamber, thus providing a ring of contact between the acoustic driver and the cavitation chamber. In at least one embodiment, a void filling material is interposed between one or more pairs of adjacent surfaces of the driver assembly and/or the driver assembly and the exterior surface of the cavitation chamber.