Todd A Langston

US Patent:

6367248, Apr 9, 2002

Filed:

Jan 12, 2000

Appl. No.:

09/482212

Inventors:

Todd Langston - Chandler AZ
Don Salafia - Chandler AZ

Assignee:

Honeywell International Inc. - Morris Township NJ

International Classification:

F16D 3102

US Classification:

60413, 60464, 60488

Abstract:

An hydraulic control system for an IDG includes in flow series arrangement a scavenge pump, a spool valve and a boost pump. When the spool valve detects an interruption in the supply pressure to the boost pump due to an adverse âgâ condition, it reconfigures the system to a closed loop system. In this mode, the oil returning from the CVT is re-circulated back to the boost pump instead of back to the scavenge pump. A small accumulator of oil is used to make up for leakage in the system.

US Patent:

6418714, Jul 16, 2002

Filed:

Aug 23, 2000

Appl. No.:

09/644375

Inventors:

Andrew T. Johnson - Scottsdale AZ
Todd Langston - Chandler AZ
Daniel Navarro - Tempe AZ

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F16H 3904

US Classification:

60413, 60453, 60488, 244 58

Abstract:

The present invention meets these objectives providing an IDG hydraulic system that utilizes in flow series arrangement a scavenge pump, a spool valve and a boost pump. When spool valve detects an interruption in the supply pressure to the boost pump due to an adverse âgâ condition, it reconfigures the system to a closed loop system. In this mode, the oil returning from the CVT is re-circulated back to the boost pump instead of back to the scavenge pump. Oil lost to leakage is replenished by an oil accumulator that use the gas pressure in the IDGs casing to expel fluid from the accumulator into the recirculating flow.

US Patent:

6623238, Sep 23, 2003

Filed:

Apr 23, 2001

Appl. No.:

09/841660

Inventors:

Todd A. Langston - Chandler AZ
William Lee Giesler - Phoenix AZ

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F04D 1102

US Classification:

415112, 415113, 415115, 4151221, 415123, 415230, 415231, 416 92, 60626

Abstract:

An air turbine starter with an improved seal assembly is provided. A fluid conduit or channel allows higher pressure fluid into one side of a bearing seal. For example, the seal assembly may include a face seal, and a second seal forming a chamber therebetween and a flow passage opens into the chamber for exposing the chamber to the higher pressure.

US Patent:

6629816, Oct 7, 2003

Filed:

Aug 16, 2001

Appl. No.:

09/932829

Inventors:

Todd A. Langston - Chandler AZ
William L. Giesler - Phoenix AZ

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01D 1104

US Classification:

415111, 415123, 4151711, 415230, 277424, 277352, 277399

Abstract:

An improved oil seal is provided for sealing passage of a rotatable shaft through an end wall of a bearing housing in a turbomachine or the like, wherein the shaft is rotatably supported within the bearing housing by oil-lubricated bearings. The improved oil seal comprises a dynamic oil-air separator and a slinger rotor mounted on the shaft for rotation therewith, the slinger rotor having an outwardly extending slinger ring with an outboard seal face with radially oriented slots and a circumferential groove or grooves.

US Patent:

6684623, Feb 3, 2004

Filed:

Feb 27, 2002

Appl. No.:

10/083854

Inventors:

Todd A. Langston - Chandler AZ
Andrew T. Johnson - Scottsdale AZ
Terry J. Ahrendt - Mesa AZ

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F02K 302

US Classification:

602262, 60230, 244110 B, 23926529

Abstract:

A gearless electric thrust reverser actuator includes an electric motor that is coupled to a jack screw without any intervening gears. The actuator may additionally include all of the actuation and sensing components in a single actuation package. Thus, the actuator is relatively lightweight and compact.

US Patent:

6969236, Nov 29, 2005

Filed:

Aug 29, 2003

Appl. No.:

10/651926

Inventors:

William L. Giesler - Phoenix AZ, US
Todd A. Langston - Chandler AZ, US
Kellan P. Geck - Chandler AZ, US
Todd A. Kincheloe - Mesa AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D025/00

US Classification:

415230, 415231

Abstract:

A fluid-cooled seal rotor is described for a seal assembly that includes a seal case, a seal stator, and wherein the rotor has a sealing face on a first side and a heat-transfer structure on a second side. The heat-transfer structure may be a roughened surface. The heat-transfer structure may have protrusions which may be fins, including fins with roughened surfaces. The heat-transfer structure may have additional heat-transfer structures thereon to create complex, including fractal, structures. The fins may be shaped as impellers to move oil over the heat-transfer structure. Channels between fins may have a width greater than twice the boundary layer thickness for the fluid engaged by the fins. The fluid-cooled rotor, the seal assembly having the fluid-cooled rotor, an air turbine starter having the seal assembly, air turbine starters and other machines with rotating shafts using the seal are within the scope of the invention.

US Patent:

6991425, Jan 31, 2006

Filed:

Sep 12, 2003

Appl. No.:

10/661312

Inventors:

Roy F. Kruegel - Laveen AZ, US
Cynthia S. Byers - Mesa AZ, US
Gary E. Armstrong - Mesa AZ, US
Todd A. Langston - Chandler AZ, US
Marvin K. Collins - Chandler AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D 15/12

US Classification:

4151221, 4152131, 4152141, 415200, 298892

Abstract:

An air turbine starter for use in aircraft or other gas turbine engine applications. In a particular embodiment, the air turbine starter has a titanium unitary inlet structure. The unitary inlet structure has a housing having a longitudinal centerline. The housing defines an air inlet, a mounting surface, and a flow path therebetween. Integrally formed inside the housing and transverse to the longitudinal centerline is a stator for directing the flow of air in to the turbine blades of the turbine starter. The stator has a central circular body with a plurality of angularly spaced circumferentially mounted stator fins. An improved unitary inlet structure and method for making such a unitary inlet and stator are also provided.

US Patent:

7014419, Mar 21, 2006

Filed:

Feb 27, 2004

Appl. No.:

10/788757

Inventors:

Gary A. Farnsworth - Scottsdale AZ, US
Larry K. Ball - Chandler AZ, US
Kellan P. Geck - Chandler AZ, US
Todd A. Langston - Chandler AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

F01D 25/00

US Classification:

415113, 137855

Abstract:

A passive ATS lubrication system is provided that includes a starter housing, a receptacle and two valves. The starter housing is adapted to couple to a gearbox assembly and includes a supply opening and an exhaust opening that are each configured to provide fluid communication between the gearbox assembly and the starter housing. The receptacle is coupled to the starter housing proximate the supply opening to thereby define a reservoir. The first valve is disposed within the reservoir and configured to open or close the supply opening in response to a pressure differential between the starter housing and the gearbox assembly. The second valve is coupled to the starter housing proximate to the exhaust opening and configured to open or close the exhaust opening in response to the pressure differential between the starter housing and the gearbox assembly.

Phone:

4092017812

VIN:

3D4PH1FG9BT531742

Make:

DODGE

Model:

JOURNEY

Year:

2011