Matthew M Deangelis

US Patent:

6643222, Nov 4, 2003

Filed:

Dec 5, 2002

Appl. No.:

10/310609

Inventors:

Jason W. Osborn - Amherst NH
Matthew M. DeAngelis - Bedford NH
Jeffrey J. Enos - Bedford NH

Assignee:

BAE Systems Information and Electronic Systems Integration INC - Nashua NH

International Classification:

H04R 1700

US Classification:

367174, 367141, 367163, 310337

Abstract:

A flextensional transducer projector shell design is disclosed. The shell design has a shape formed so as to reduce the stress placed on the transduction driver as compared to other shell designs. The shell design includes first and second bulbous end portions, which can each be adapted to receive a respective end of a transduction driver. A middle portion of the shell design has both concave sections and convex sections, thereby defining a wave profile.

US Patent:

6649069, Nov 18, 2003

Filed:

Dec 3, 2002

Appl. No.:

10/308318

Inventors:

Matthew M. DeAngelis - Bedford NH

Assignee:

BAE Systems Information and Electronic Systems Integration Inc - Nashua NH

International Classification:

C02F 136

US Classification:

210748, 422 20, 422128, 366DIG 4, 138103

Abstract:

Active acoustic piping that allows treatment of material flowing in a piping system is disclosed. Treatment of waste water and other fluids is enabled, where acoustic radiation operates on the flow material. An inner pipe has a plurality of transducer elements disposed on its external perimeter. A buffer zone around the transducer elements provides an acoustic impedance mismatch, which concentrates the acoustic energy into the flow material traveling in the inner pipe. Processes such as decontamination, flow unclogging, fluid and particulate mixing, particulate size reduction, and particulate separation are enabled. No pressure compensation scheme is required.

US Patent:

7483339, Jan 27, 2009

Filed:

Oct 12, 2004

Appl. No.:

10/542994

Inventors:

Matthew M. Deangelis - Bedford NH, US
Jason W. Osborn - Amherst NH, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H04R 17/00
G10K 11/00

US Classification:

367159, 367153, 367165, 367169, 367173, 310331, 310334

Abstract:

An underwater acoustic projector comprising one or more cylindrical shell segments (), each shell segment () having an even number of drivers () mounted therein, and the method of manufacturing said projector. The shell segments () preferably are formed with a longitudinal slot () and have arcuate segments (), preferably of a dielectric material extending along the sides of the slot () for retaining the drivers () within the shell segments (). The combined lengths of the driver is between 70% and 90% of the shell segment () length.

US Patent:

7609586, Oct 27, 2009

Filed:

Oct 12, 2004

Appl. No.:

10/542993

Inventors:

Jason W. Osborn - Amherst NH, US
Matthew M. DeAngelis - Bedford NH, US

Assignee:

BAE Systems Information And Electronic Systems Integration Inc. - Nashua NH

International Classification:

H04R 17/00
H01L 41/08

US Classification:

367169, 367159, 367165, 367176, 310337

Abstract:

An acoustic projector which includes an outer shell () formed of a reinforced epoxy resin having a longitudinal slot () has an inner reinforcing liner () formed of metal to reduce stress. The liner () extends throughout the length of the outer shell and has a longitudinal slot () aligned with the slot () formed in the shell (). An arcuate shaped driver () is mounted along a portion of the I. D. of the metal liner () and separated therefrom by insulation ().

US Patent:

7894307, Feb 22, 2011

Filed:

Sep 17, 2009

Appl. No.:

12/561633

Inventors:

Jason W. Osborn - Amherst NH, US
Matthew M. DeAngelis - Bedford NH, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H04R 17/00

US Classification:

367169, 367159, 367165, 367176

Abstract:

An acoustic projector which includes an outer shell formed of a reinforced epoxy resin having a longitudinal slot has an inner reinforcing liner formed of metal to reduce mechanical stress. The liner extends throughout the length of the outer shell and has a longitudinal slot aligned with the slot formed in the shell. An arcuate shaped driver is mounted along a portion of the I. D. of the metal liner and separated therefrom by insulation. In an alternate embodiment, the outer shell is formed of a plurality of overlapping layers of epoxy/graphite strips extending at various angles to increase the Z-axis stiffness.

US Patent:

20030129429, Jul 10, 2003

Filed:

Dec 3, 2002

Appl. No.:

10/308321

Inventors:

Matthew DeAngelis - Bedford NH, US

International Classification:

B05D001/36

US Classification:

428/480000, 427/402000

Abstract:

A degassed polyester varnish is applied to the transduction driver to increase surface dielectric strength (insulation resistance), driver voltage breakdown, physical protection, and heat and water resistance. A vacuum chamber application process is used to apply the polyester varnish. The disclosed coating technique is applicable to all transducer drive materials and all transducer types.

US Patent:

20150047332, Feb 19, 2015

Filed:

Aug 5, 2014

Appl. No.:

14/451528

Inventors:

- Nashua NH, US
Matthew M. DeAngelis - Bedford NH, US

International Classification:

F03B 17/02
F03B 11/00
F03B 13/10
F03G 7/04
F03B 15/02

US Classification:

60327, 60398

Abstract:

A system and method for converting pressure differentials to electricity is disclosed. Initially, a first chamber is empty and a second chamber holds compressed air/fluid. When the device is disposed in the large bodies of water, due to pressure difference inside the first chamber and the ambient pressure, water fills the first chamber. As the water passes through the first chamber, it turns the turbine or creates pressure difference in transducer to produce electricity. The device descends itself in the deeper water column due to added water in first chamber. When the device obtains equilibrium, the compressed air/fluid from second chamber is allowed to flow to the first chamber to evacuate the filled water. The evacuating water again turns the turbine or creates pressure difference in transducer to produce electricity. After evacuation of water, the device will ascend itself to a shallower depth and the process repeats.