Jason P Osborn

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:

6781288, Aug 24, 2004

Filed:

Nov 26, 2002

Appl. No.:

10/304976

Inventors:

Jason W. Osborn - Amherst NH

Assignee:

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

International Classification:

H01L 4108

US Classification:

310337, 310334

Abstract:

An acoustic transducer design having a slotted oval-shaped shell and active transducer elements located on the inner surface of the shell is disclosed. The design provides a high power, ultra-low frequency oval projector having a number of applications, including underwater seismic prospecting and fish mitigation.

US Patent:

6956792, Oct 18, 2005

Filed:

Feb 28, 2002

Appl. No.:

10/085794

Inventors:

Jason W. Osborn - Amherst NH, US
William S. McNary - Amherst NH, US

Assignee:

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

International Classification:

H04R001/44

US Classification:

367174

Abstract:

A honeycomb-like shell is provided for an acoustic projector used in sonar applications to increase the bandwidth of the projector, reduce its weight, and to provide increased power density and reduced shell costs. The shell has outer and inner layers, with the honeycomb structure therebetween. The honeycomb shells have application in slotted cylindrical projectors, flextensional projectors, inverse flex tensional projectors, and oval-shaped projectors in which the honeycomb structure replaces the solid shells, with the honeycomb providing the relatively high specific stiffness required for the acoustic properties of the projector. The honeycomb shell achieves the same bending stiffness of the solid shells with less weight through the utilization of radial stiffeners between the inner and outer layers. The use of the honeycomb structure increases bandwidth by over 30%, and reduces total weight by 22%, shell weight by 65% and shell cost by 50%, making the honeycomb shell ideal for low frequency sonar applications.

US Patent:

7093343, Aug 22, 2006

Filed:

Jun 10, 2004

Appl. No.:

10/865601

Inventors:

Jason W Osborn - Amherst NH, US

Assignee:

BAE Systems Information and Electronic Systems Integration, INC - Nashua NH

International Classification:

H04R 31/00

US Classification:

29594, 295921, 296091, 181171, 181172, 310334, 310337, 310369, 381396, 381398

Abstract:

An acoustic transducer design having a slotted oval-shaped shell and active transducer elements located on the inner surface of the shell is disclosed. The design provides a high power, ultra-low frequency oval projector having a number of applications, including underwater seismic prospecting and fish mitigation.

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.