Li Chun Chang

US Patent:

20140077471, Mar 20, 2014

Filed:

Sep 18, 2012

Appl. No.:

13/622035

Inventors:

Li C. Chang - North Charleston SC, US
Richard M. Coleman - Everett WA, US
Ronald J. Steckman - North Charleston SC, US
Andrew M. Huckey - North Charleston SC, US
Nicholas A. Norman - North Charleston SC, US

International Classification:

B62D 33/00
B23P 11/00
B64C 1/00

US Classification:

280107, 244120, 29428

Abstract:

A barrel assembly for a composite structure includes a barrel of composite material, a first end ring, and a mid support. The barrel of composite material has a first end, an interior surface and an outer surface, and the first end ring is removably attached to the first end. The first end ring has a perimeter that is substantially congruent with the first end, and is configured to maintain a shape of the barrel. The mid support is removably disposed within the barrel, and has a plurality of spokes extending outwardly from a central hub to contact the interior surface, to maintain a shape of the barrel.

US Patent:

20220388632, Dec 8, 2022

Filed:

Aug 10, 2022

Appl. No.:

17/885082

Inventors:

- Chicago IL, US
Peter Aaron Koch - Kent WA, US
Li Chun Chang - Mt. Pleasant SC, US
Robert Hans Thim - Woodinville WA, US

International Classification:

B64C 21/10
B08B 17/06
B64D 15/12
B64D 15/16
B64D 15/00
B81C 1/00
B81B 3/00
B81B 7/00
B81B 7/02
B81B 7/04

Abstract:

Active surface structures comprise an exposed surface, a controlled group of MEMS (micro-electro-mechanical system) actuators, and a controlled region of the exposed surface corresponding to the controlled group. The controlled region has a first state, and a second state that is less textured than the first state. Active surface structures may be part of an apparatus that includes a controller and/or one or more sensors. The controller, sensors, and the controlled region may form a feedback loop in which the active surface structure is actively controlled.

US Patent:

20190329872, Oct 31, 2019

Filed:

Jul 10, 2019

Appl. No.:

16/508082

Inventors:

- Chicago IL, US
Peter Aaron Koch - Kent WA, US
Li Chun Chang - Mt. Pleasant SC, US
Robert Hans Thim - Woodinville WA, US

International Classification:

B64C 21/10
B64D 15/16
B64D 15/12
B64D 15/00
B81C 1/00
B81B 3/00
B08B 17/06
B81B 7/04
B81B 7/02
B81B 7/00

Abstract:

Active superhydrophobic surface structures are actively-controlled surface structures exhibiting a superhydrophobic state and an ordinary state. Active superhydrophobic surface structures comprise an outer elastomeric covering defining an exposed surface, a controlled group of MEMS (micro-electro-mechanical system) actuators at least covered by the elastomeric covering, and, a controlled region of the exposed surface corresponding to the controlled group. The controlled region has a superhydrophobic state in which the controlled region is textured. The controlled region also has an ordinary state in which the controlled region is smooth (i.e., less textured than in the superhydrophobic state). Active superhydrophobic surface structures may be part of an apparatus that includes a controller and/or one or more sensors. The controller, sensors, and the controlled region may form a feedback loop in which the active superhydrophobic surface is actively controlled.

US Patent:

20160114883, Apr 28, 2016

Filed:

Oct 23, 2014

Appl. No.:

14/522255

Inventors:

- Huntington Beach CA, US
Peter Aaron Koch - Kent WA, US
Li Chun Chang - Mt. Pleasant SC, US
Robert Hans Thim - Woodinville WA, US

Assignee:

The Boeing Company - Huntington Beach CA

International Classification:

B64C 21/10
B81B 3/00
B81B 7/04
B81B 7/00
B81B 7/02

Abstract:

Active superhydrophobic surface structures are actively-controlled surface structures exhibiting a superhydrophobic state and an ordinary state. Active superhydrophobic surface structures comprise an outer elastomeric covering defining an exposed surface, a controlled group of MEMS (micro-electro-mechanical system) actuators at least covered by the elastomeric covering, and, a controlled region of the exposed surface corresponding to the controlled group. The controlled region has a superhydrophobic state in which the controlled region is textured. The controlled region also has an ordinary state in which the controlled region is smooth (i.e., less textured than in the superhydrophobic state). Active superhydrophobic surface structures may be part of an apparatus that includes a controller and/or one or more sensors. The controller, sensors, and the controlled region may form a feedback loop in which the active superhydrophobic surface is actively controlled.

US Patent:

20150198432, Jul 16, 2015

Filed:

Jan 13, 2014

Appl. No.:

14/153529

Inventors:

- Chicago IL, US
Austin Michael Cangelosi - Charleston SC, US
Li Chun Chang - Mt. Pleasant SC, US
Deborah E. Errazo - Goose Creek SC, US

Assignee:

THE BOEING COMPANY - Chicago IL

International Classification:

G01B 11/00
G01S 13/00
G05B 19/19
G01B 21/00

Abstract:

A method and system for monitoring a mandrel. A first plurality of transmitting devices is positioned with respect to the mandrel. Signals from a portion of the first plurality of transmitting devices are received at a receiving device. The signals are processed to determine a configuration of the mandrel.

US Patent:

20140331473, Nov 13, 2014

Filed:

May 9, 2013

Appl. No.:

13/890666

Inventors:

The Boeing Company - , US
Li Chun Chang - North Charleston SC, US
Amy L. Suthon - Mount Pleasant SC, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

B64F 5/00

US Classification:

29429, 292811

Abstract:

An apparatus and method for installation of a frame assembly to a body may include a tooling assembly configured to support a frame assembly, the tooling assembly being positioned with respect to a body, wherein the frame assembly is positioned with respect to the body at a plurality of predetermined engineering locations.