John L Harrell

US Patent:

7766734, Aug 3, 2010

Filed:

Dec 27, 2005

Appl. No.:

11/318682

Inventors:

Dennis R. Dietz - Bradenton FL, US
John Robert Harrell - Bradenton FL, US
Dwight Ray Shackelford - Sarasota FL, US

Assignee:

American Aldes Ventilation Corporation - Bradenton FL

International Classification:

F24F 13/10
F24F 7/06
F24F 13/08

US Classification:

454345, 454333, 454339, 454341, 137630

Abstract:

A system and method for providing a substantially constant volume exhaust or ventilation air terminal system is shown for controlling exhaust and/or return airflow rates in a system having a central fan or ventilator. The system and method permits zone-by-zone or area-by-area airflow regulation or control in non-demand areas in response to a demand or call for ventilation in demand areas. In one embodiment, the system employs at least one constant airflow controller or regulator situated in a damper. Another embodiment shows a combination of a first constant airflow controller or regulator situated or mounted on a damper with a second constant airflow controller or regulator situated in a duct associated with the damper. In still another embodiment, a constant airflow controller or regulator is provided in a duct, and used in combination with a solid damper.

US Patent:

20100227541, Sep 9, 2010

Filed:

May 20, 2010

Appl. No.:

12/783826

Inventors:

Dennis R. Dietz - Sarasota FL, US
John Robert Harrell - Sarasota FL, US
Dwight Ray Shackelford - Sarasota FL, US

Assignee:

AMERICAN ALDES VENTILATION CORPORATION - Bradenton FL

International Classification:

F24F 11/04
F24F 13/10

US Classification:

454256, 454333

Abstract:

A system and method for providing a substantially constant volume exhaust or ventilation air terminal system is shown for controlling exhaust and/or return airflow rates in a system having a central fan or ventilator. The system and method permits zone-by-zone or area-by-area airflow regulation or control in non-demand areas in response to a demand or call for ventilation in demand areas. In one embodiment, the system employs at least one constant airflow controller or regulator situated in a damper. Another embodiment shows a combination of a first constant airflow controller or regulator situated or mounted on a damper with a second constant airflow controller or regulator situated in a duct associated with the damper. In still another embodiment, a constant airflow controller or regulator is provided in a duct, and used in combination with a solid damper.

US Patent:

20120120516, May 17, 2012

Filed:

Nov 12, 2010

Appl. No.:

12/945701

Inventors:

John P. HARRELL - Mission Viejo CA, US
Geoffrey A. LONG - Torrance CA, US
Michael L. MENENDEZ - Corona CA, US

Assignee:

RAYTHEON COMPANY - Waltham MA

International Classification:

G02B 7/00
H02K 49/10

US Classification:

359896, 310103

Abstract:

Various embodiments provide a system for moving optical elements. The system includes a first rotor and a second rotor configured to rotate in opposite directions. The system further includes a first plurality of paddles coupled to the first rotor, each of the plurality of paddles having an aperture configured to receive a first optical element, and a second plurality of paddles coupled to the second rotor, each of the plurality of paddles having an aperture configured to receive a second optical element. The first rotor and the second rotor are configured to move the first optical element between a retracted position and a desired position and to move the second optical element between the desired position and a retracted position substantially simultaneously such that a reaction torque of the first rotor cancels a reaction torque of the second rotor.

US Patent:

20140065939, Mar 6, 2014

Filed:

Nov 8, 2013

Appl. No.:

14/075514

Inventors:

Dennis R. Dietz - Bradenton FL, US
John Robert Harrell - Bradenton FL, US
Dwight Ray Shackelford - Sarasota FL, US

Assignee:

AMERICAN ALDES VENTILATION CORPORATION - Bradenton FL

International Classification:

F24F 11/00

US Classification:

454229, 454234, 454239, 454249, 454333

Abstract:

A system and method for providing a substantially constant volume exhaust or ventilation air terminal system is shown for controlling exhaust and/or return airflow rates in a system having a central fan or ventilator. The system and method permits zone-by-zone or area-by-area airflow regulation or control in non-demand areas in response to a demand or call for ventilation in demand areas. In one embodiment, the system employs at least one constant airflow controller or regulator situated in a damper. In one embodiment, a terminal houses a plurality of sub-ducts each having an airflow regulator. At least one of the sub-ducts has a damper. When the damper is open, a maximum airflow through the terminal is a sum of maximum airflow permitted by the regulators.

US Patent:

57514607, May 12, 1998

Filed:

Oct 11, 1995

Appl. No.:

8/540731

Inventors:

John P. Harrell - Mission Viejo CA
Bryce A. Wheeler - Mammoth Lakes CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02B 2608
G02B 7182

US Classification:

359198

Abstract:

An articulated optical system has a pair of actuators (42, 44) each of which pivot a head mirror (34) about respective parallel axes (E. sub. 1, E. sub. 2) to direct the line-of-sight of an optical beam through a window (36) of a vehicle (30) to an optical sensor (38). Of the actuators, a coarse actuator (42) pivots the mirror (34) through substantially the entire desired field of regard of the optical system, and a fine actuator (44) pivots the mirror (34) for fine adjustment, e. g. , less than five degrees. The coarse actuator (42) is positioned so that the axis thereof (E. sub. 1) is located as close as possible to an edge of the mirror (34), so that the radial distance therebetween is small; therefore, the size of the window (36) is minimized with respect to the diameter (d. sub. b) of the optical beam. The fine actuator (44) is attached to approximately the geometric center of the mirror (34), so that the mirror (34) is statically balanced about the elevation axis (E. sub.

US Patent:

58200789, Oct 13, 1998

Filed:

Sep 27, 1996

Appl. No.:

8/721882

Inventors:

John P. Harrell - Mission Viejo CA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

B64G 128

US Classification:

244165

Abstract:

A control moment gyro having a housing enclosing a spinning momentum wheel. A rocking plate circumscribes the housing and is compliantly connected thereto by a set of isolator struts and non-contacting actuators which isolate the rocking plate from the inherent vibrations and oscillations of the momentum wheel. The rocking plate is pivotably connected to a gimbal ring about a first pivot axis normal to the spin axis of the momentum wheel. The gimbal ring is pivotably connected to the structure of the spacecraft about a second axis orthogonal to the spin axis and the first pivot axis. Actuators are provided to control the attitude of the housing relative to the rocking plate, the rocking plate relative to the gimbal ring, and the gimbal ring relative to the spacecraft.

US Patent:

58200797, Oct 13, 1998

Filed:

Apr 24, 1997

Appl. No.:

8/843115

Inventors:

John P. Harrell - Mission Viejo CA

Assignee:

Hughes Electronics - Los Angeles CA

International Classification:

F16F 1512
B64D 2700
B64G 138

US Classification:

244165

Abstract:

An apparatus for mounting a momentum wheel assembly (10) to a spacecraft (54). The momentum wheel assembly (10) includes a momentum wheel which has a primary spin axis coinciding with the primary spin axis of the spacecraft and spins in a direction opposite that of the spacecraft (54). Suspension isolation struts (20) attach the momentum wheel assembly (10) to the spacecraft (54) and provide substantial vibration isolation between the spacecraft (54) and the momentum wheel assembly (10). Voice coil actuators (40) attach to an adaptor ring (14) which in turn attaches to the spacecraft (54). The voice coil actuators (40) magnetically interact with a magnetically conductive element (42) attached to the momentum wheel assembly case (12). Interaction between the voice coil actuators (40) and the magnetic element (42) provides forces which displace the momentum wheel assembly case (12) in two axes orthogonal to the primary spin axis.

US Patent:

57900493, Aug 4, 1998

Filed:

Feb 20, 1996

Appl. No.:

8/602560

Inventors:

John P. Harrell - Mission Viejo CA

Assignee:

Raytheon Company - Los Angeles CA

International Classification:

G08C 1700

US Classification:

34087028

Abstract:

A suspension system permits fine angular adjustment of a gimbal-mounted platform and, in combination with a wireless power and communications transfer system, eliminates the unwanted forces associated with systems which rely upon cables to transfer power and signals between a gimbal platform and its support structure.

Address:

1680 Ghettis Way, Reno, NV 89521

VIN:

3GSDL43N38S508799

Make:

SATURN

Model:

VUE

Year:

2008