Gregory W Heinen

US Patent:

20200041640, Feb 6, 2020

Filed:

Aug 1, 2018

Appl. No.:

16/051915

Inventors:

- Waltham MA, US
Gregory W. Heinen - Waltham MA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G01S 13/88
G01S 13/04
G01S 7/41

Abstract:

A system and method for detecting concealed weapons using ultrawideband radar detects weapons based on circumference resonance that are characteristic of reflections for cylindrical or conic portions of a type of weapon, and based on barrel length resonances that are characteristic of barrel lengths of the type of weapon. The circumference resonances are detected using ultrawideband radar in the Mie scattering region based on a range of weapons' characteristic radii to ultrawideband wavelengths. The barrel length resonances are detected using ultrahigh frequency radar in the Mie scattering region based on range of weapons' characteristic lengths to ultrahigh frequency wavelengths. Circumferential resonance patterns and length resonance patterns are combined to provide improved weapon type identification without relying on orientation of the concealed weapons. An array of ultrawideband radar apparatus may be configured to provide synthetic aperture radar imaging of a target area.

US Patent:

20190241242, Aug 8, 2019

Filed:

Apr 15, 2019

Appl. No.:

16/384012

Inventors:

- Waltham MA, US
Gregory W. Heinen - Lowell MA, US

International Classification:

B63G 8/08
F01K 25/10
B63G 8/00
F01K 1/12
F01K 15/04
F01K 25/08
F01K 13/02
F01D 25/14
F01D 15/04

Abstract:

A carbon dioxide cycle power generation system includes a first carbon dioxide storage configured to store a first portion of carbon dioxide and a second carbon dioxide storage configured to store a second portion of the carbon dioxide. The carbon dioxide cycle power generation system also includes a generator configured to generate electrical power based on a flow of at least part of the carbon dioxide between the first and second carbon dioxide storages. The carbon dioxide cycle power generation system is configured to cycle between different underwater depths in order to employ water pressure and/or water temperature in creating the flow of the at least part of the carbon dioxide through the generator. The second carbon dioxide storage includes an annular region surrounding a central region, where the annular region has a variable internal volume configured to receive at least part of the second portion of the carbon dioxide.

US Patent:

20190210723, Jul 11, 2019

Filed:

Jan 5, 2018

Appl. No.:

15/863018

Inventors:

- Waltham MA, US
Gregory W. Heinen - Lowell MA, US

International Classification:

B64C 39/02

Abstract:

A flight vehicle includes a drone with a pair of shaped protrusions mechanically coupled to the drone. One of the shapes is a hollow lift-producing shape, such as being a balloon filed with a lighter-than-air gas, and the other of the shapes is below the drone. The shape below the drone may be a hollow shape that does not produce lift, for example being a balloon filled with air. The shapes may be similar in size and shape, so as to provide similar drag characteristics. The shapes may be opposite ends of a support, such as a stick, rod, or other (relatively) slender structure. The vehicle includes a payload, such as radar calibration equipment or an antenna. The drone may be used to counteract wind forces on the flight vehicle, and/or to otherwise position the flight vehicle.

US Patent:

20170349252, Dec 7, 2017

Filed:

Jun 3, 2016

Appl. No.:

15/173214

Inventors:

- Waltham MA, US
Gregory W. Heinen - Lowell MA, US

International Classification:

B63G 8/14
B63G 8/00
B63H 19/00
B63H 25/38

Abstract:

An apparatus includes first and second tanks each configured to receive and store a refrigerant under pressure. The apparatus also includes at least one generator configured to receive flows of the refrigerant between the tanks and to generate electrical power based on the flows of the refrigerant. The apparatus further includes first and second hydraulic drives associated with the first and second tanks, respectively. Each hydraulic drive includes a first piston within the associated tank, a channel fluidly coupled to the associated tank and configured to contain hydraulic fluid, and a second piston within the channel and configured to move within the channel in order to vary an amount of the hydraulic fluid within the associated tank and vary a position of the first piston within the associated tank. The channel of each hydraulic drive has a cross-sectional area that is less than a cross-sectional area of the associated tank.

US Patent:

20170283021, Oct 5, 2017

Filed:

Apr 5, 2016

Appl. No.:

15/091415

Inventors:

- Waltham MA, US
Gregory W. Heinen - Lowell MA, US

International Classification:

B63G 8/08
F01D 25/14
B63G 8/00
F01K 15/04
F01K 13/02
F01D 15/04
F01K 25/08

Abstract:

A carbon dioxide cycle power generation system includes storage collectively storing portions of carbon dioxide liquid and gas and a transfer connection selectively directing flow of the carbon dioxide through a turbine. The system cycles between different seawater depths in order to employ at least one of seawater pressure and seawater temperature in creating the carbon dioxide flow. Inlet/outlet control valves on variable volume tanks, positioned below movable pistons within the respective tank, selectively allow seawater into or out of a lower portion of the respective tank below the piston to pressurize the carbon dioxide therein relative to the carbon dioxide within the other tank when at depth rather than near the surface. Inhibited versus uninhibited heat transfer between storage portions and the seawater allows different seawater temperatures at depth and near the surface to create the carbon dioxide flow. Acoustic communications may be driven concurrent with the turbine.