David J Lang

US Patent:

7143888, Dec 5, 2006

Filed:

Jan 26, 2005

Appl. No.:

11/043487

Inventors:

David J. Lang - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

F16D 67/00

US Classification:

1922233, 74 8916, 188134

Abstract:

A combined no-back and torque limiter device that automatically prevents back-drive and over-torque actuator conditions with a combination of two compression-type brakes that are selectively operated with a self-energised ball ramp set and torsional spring mechanism.

US Patent:

8127912, Mar 6, 2012

Filed:

Dec 15, 2009

Appl. No.:

12/638348

Inventors:

David J. Lang - Rockford IL, US
James M. Regan - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

B60T 7/12

US Classification:

1922233, 188134

Abstract:

A feedback torque limiter device for an actuator having an input shaft, output shaft and gear reduction for transmitting torque from the input shaft to the output shaft comprises an output torque sensor, and input torque limiter and a feedback mechanism. The output torque sensor senses actuator output torque downstream from an actuator gear reduction. The input torque limiter grounds additional torque from the input shaft when engaged. The feedback mechanism engages the input torque limiter when the output torque sensed by the output torque sensor reaches a predetermined value.

US Patent:

8262531, Sep 11, 2012

Filed:

Dec 17, 2009

Appl. No.:

12/640482

Inventors:

Richard A. Himmelmann - Beloit WI, US
David Lang - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

F16H 35/10
F16H 25/20

US Classification:

475263, 475149, 74 8939, 74 8937

Abstract:

An actuator () includes a differential (), the differential comprising a gear train comprising a first leg () and a second leg (); a motor () configured to power a rotating ball screw () through the first leg () of the differential (); and a brake () connected to the second leg () of the differential (), the brake () having a holding force, such that in the event a torque in the differential () exceeds the holding force, the brake () is configured to dissipate the torque in the differential ().

US Patent:

8393442, Mar 12, 2013

Filed:

Aug 14, 2008

Appl. No.:

12/228595

Inventors:

David J. Lang - Rockford IL, US
James M. Regan - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Rockford IL

International Classification:

B60T 7/12

US Classification:

188134

Abstract:

An asymmetry brake includes a housing, a shaft, a pilot brake, a primary brake, and a ball ramp assembly. The shaft of the asymmetry brake is rotatable relative to the housing about an axis of rotation. The primary brake is movably connected with the shaft. The pilot brake is configured to selectively engage the housing to generate a triggering torque. The triggering torque is transferred through the ball ramp assembly to the primary brake, which in response engages the housing to generate a braking torque on the shaft. The disposition of the ball ramp assembly between the pilot brake and the primary brake allows the ball ramp assembly to return to an operative non-separated condition when the pilot brake is disengaged from the housing. The return of the ball ramp assembly to the operative non-separated condition allows the primary brake to disengage from the housing which releases the shaft to rotate.

US Patent:

8438743, May 14, 2013

Filed:

Jun 1, 2011

Appl. No.:

13/150502

Inventors:

Gregory T. Wallen - Roscoe IL, US
James M. Regan - Rockford IL, US
David J. Lang - Rockford IL, US
Cory M. Crandall-Seibert - Roscoe IL, US
Mark D. Miller - Rockford IL, US
William E. Leden - Roscoe IL, US
Andrew N. Baines - Rockton IL, US
Jeffrey Paul Jacobs - Roscoe IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

G01B 5/24

US Classification:

33 1PT, 33645, 244213

Abstract:

A disclosed sensor assembly for detecting movement and a position of a wing flap includes a sensing device that generates a signal corresponding to a position of the flap. The sensor assembly includes a linkage that is attached to the movable flap for mechanically communicating movement of the flap to the sensing device. The linkage includes a first pivot shaft mounted to the flap that is disposed about a first axis and a second pivot shaft attached to the first pivot shaft for movement about a second axis transverse to the first axis.

US Patent:

8511441, Aug 20, 2013

Filed:

Apr 1, 2010

Appl. No.:

12/752417

Inventors:

David J. Lang - Rockford IL, US
James M. Regan - Rockford IL, US
Mark D. Miller - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

F16D 55/48

US Classification:

188134, 188 829, 1922233

Abstract:

Disclosed is a cone brake no-back for use with an actuation system. The actuation system may be an aircraft actuation system, for example. The no-back may include cone brakes capable of preventing undesired displacement of an aircraft surface (such as a flap, a leading edge, or a trailing edge of a wing) in the event that an actuator input becomes disconnected or is otherwise insufficient to oppose the load created by the aircraft surface.

US Patent:

8640563, Feb 4, 2014

Filed:

May 25, 2011

Appl. No.:

13/115209

Inventors:

David J. Lang - Rockford IL, US
Gary Sasscer - Leaf River IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

F16H 1/24

US Classification:

74 8939, 74 8937, 74 8938

Abstract:

An actuator for a ram air turbine system includes a lock bolt having a multiple circumferentially arranged lateral supports. A piston rod supports multiple up-lock wedges. Multiple rollers are supported by the lateral supports with chamfers on the rollers engaging one another and are configured to radially support the up-lock wedges in a retracted position.

US Patent:

8206259, Jun 26, 2012

Filed:

Nov 16, 2009

Appl. No.:

12/618894

Inventors:

David J. Lang - Rockford IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

F16H 57/08

US Classification:

475348, 475341

Abstract:

A rotary actuator comprises a rotatable output ring with a generally denticulate inner surface region and an output ring axis of rotation; a pair of stationary rings, each with a generally denticulate inner surface region and a stationary ring axis, each located on a different end of the output ring with the stationary ring axes in general alignment with the output ring axis; a generally cylindrical planet comprising distal outer regions that each have outer surfaces for supporting the planet, a generally denticulate central outer surface region that engages the denticulate inner surface region of the output ring, and generally denticulate intermediate outer surface regions that each engage the denticulate inner surface region of a respective one of the stationary rings, and a planet axis of rotation that is generally parallel to the output ring axis; and a pair of generally cylindrical planet carriers, each having a carrier axis of rotation in general alignment with the output ring axis.