Raphael J Welsh

US Patent:

6873302, Mar 29, 2005

Filed:

Dec 9, 2002

Appl. No.:

10/315283

Inventors:

Raphael Joseph Welsh - Pasadena MD, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q021/00
H01Q007/06

US Classification:

343867, 343742, 343788

Abstract:

According to one embodiment of the invention, a signal receiving apparatus is provided. The signal receiving apparatus includes a body. The signal receiving apparatus also includes at least one winding set positioned around the body. Each winding set comprises two or more windings that are electrically coupled to each other and substantially define a corresponding two or more planes. The corresponding two or more planes are substantially parallel to each other.

US Patent:

8077112, Dec 13, 2011

Filed:

Sep 19, 2008

Appl. No.:

12/234017

Inventors:

Raphael J. Welsh - Powell OH, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H01Q 7/02

US Classification:

343871, 343866, 343867

Abstract:

A antenna is described including a first frame having a first loop antenna element disposed thereon; a second frame having a second loop antenna element disposed thereon, the second frame disposed perpendicular to the first frame in an operational mode and disposed parallel to the first frame when in a stored mode; and a third frame having a third loop antenna element disposed thereon, the third frame disposed perpendicular to the first and second frame in an operational mode and disposed parallel to the first and second frame when in a stored mode.

US Patent:

6600458, Jul 29, 2003

Filed:

Oct 31, 2001

Appl. No.:

10/001447

Inventors:

Raphael Joseph Welsh - Pasadena MD

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01Q 2100

US Classification:

343867, 343742

Abstract:

An antenna operable to collect sub-high frequency radio signals includes a first winding disposed outwardly from a three dimensional support structure and wound around a first axis of the three dimensional support structure. The antenna further includes a second winding disposed outwardly from the three dimensional support structure and the first winding and wound around a second axis orthogonal to the first axis of the three dimensional support structure. In one embodiment, the first winding and the second winding each include an approximately equal turns area.

US Patent:

20210359781, Nov 18, 2021

Filed:

Jul 28, 2021

Appl. No.:

17/387631

Inventors:

- San Francisco CA, US
Daniel E. Stamm - Columbus OH, US
Raphael J. Welsh - Powell OH, US
Daniel G. Loesch - Columbus OH, US
Zachary Schmid - Columbus OH, US

International Classification:

H04K 3/00
G08B 6/00
G08B 7/06
H01Q 21/22

Abstract:

A handheld countermeasure device is disclosed herein. The device can include a hand-held form factor body. The device can include disruption components, a directional antenna, and a processor. The disruption components can be configured to generate a disruptive signal. The directional antenna can be configured to emit the disruptive signal. The processor can be configured to determine a position of the handheld countermeasure device based on a global navigation satellite system (GNSS) signal. The processor can be configured to load a device profile for the handheld countermeasure device based on the position of the handheld countermeasure device.

US Patent:

20200374028, Nov 26, 2020

Filed:

May 22, 2020

Appl. No.:

16/881813

Inventors:

- Columbus OH, US
Raphael Joseph Welsh - Powell OH, US

International Classification:

H04K 3/00
H05K 1/02
G02B 27/10
H03H 11/32
H03H 11/34

Abstract:

A radio frequency (RF) jamming device includes a differential segmented aperture (DSA), a jammer source outputting a jamming signal at one or more frequencies or frequency bands to be jammed, and RF electronics that amplify and feed the jamming signal to the DSA so as to emit a jamming beam. The DSA includes an array of electrically conductive tapered projections, and the RF electronics comprise power splitters configured to split the jamming signal to aperture pixels of the DSA. The aperture pixels comprise pairs of electrically conductive tapered projections of the array of electrically conductive tapered projections. The RF electronics further comprise pixel power amplifiers, each connected to amplify the jamming signal fed to a single corresponding aperture pixel of the DSA. The RF jamming device may include a rifle-shaped housing, with the DSA mounted at a distal end of the barrel of the rifle-shaped housing.

US Patent:

20200343645, Oct 29, 2020

Filed:

Apr 24, 2020

Appl. No.:

16/857713

Inventors:

- Columbus OH, US
Daniel G. Loesch - Sunbury OH, US
Donald C. Discher - Hilliard OH, US
Raphael Joseph Welsh - Powell OH, US

International Classification:

H01Q 17/00
H01Q 23/00
H01Q 21/06
H01P 5/10

Abstract:

A radio frequency (RF) aperture includes an interface printed circuit board. An array of electrically conductive tapered projections have bases disposed on a front side of the interface printed circuit board and extend away from the front side of the interface printed circuit board. Chip baluns are mounted on the back side of the interface printed circuit board. Each chip balun has a balanced port electrically connected with two neighboring electrically conductive tapered projections via electrical feedthroughs passing through the interface printed circuit board. Each chip balun further has an unbalanced port, and RF circuitry disposed at the back side of the interface printed circuit board is electrically connected with the unbalanced ports of the chip baluns. The electrically conductive tapered projections include dielectric tapered projections and an electrically conductive layer disposed on an inner or outer surface of the dielectric tapered projections.

US Patent:

20200343992, Oct 29, 2020

Filed:

Feb 18, 2020

Appl. No.:

16/793597

Inventors:

- San Francisco CA, US
Daniel E. Stamm - Columbus OH, US
Raphael J. Welsh - Powell OH, US
Daniel G. Loesch - Columbus OH, US
Zachary Schmid - Columbus OH, US

International Classification:

H04K 3/00
G08B 6/00
G08B 7/06
H01Q 21/22

Abstract:

A portable countermeasure device is provided comprising one or more directional antennae, one or more disruption components and at least one activator. The portable countermeasure device further comprises a body having a dual-grip configuration, with the directional antennae are affixed to a removable plate on a front portion of the body. The one or more disruption components may be internally mounted within the device body. The dual-grip configuration allows an operator to use his body to steady and support the device while maintaining the antenna on target. The second grip is positioned adjacent the first grip, with the first grip angled toward the rear of the device and the second grip angled toward the front of the device. The portable countermeasure device is aimed at a specific drone, the activator is engaged, and disruptive signals are directed toward the drone, disrupting the control, navigation, and other signals to and from the drone.

US Patent:

20190170663, Jun 6, 2019

Filed:

Feb 12, 2019

Appl. No.:

16/273617

Inventors:

- Columbus OH, US
Richard L. Shoaf - Westerville OH, US
Raphael J. Welsh - Powell OH, US

Assignee:

Battelle Memorial Institute - Columbus OH

International Classification:

G01N 22/00
G06K 7/10
G01N 29/024
G01N 33/15
G01N 29/032
G01N 29/28
G01N 29/32
G01N 29/44
A61J 1/10
G06K 7/14

Abstract:

A system and method are disclosed for interrogating a liquid in a container. In one embodiment, a method is provided to interrogate and identify a liquid in a medical container.