Andrew Cheng

US Patent:

6338653, Jan 15, 2002

Filed:

Jul 7, 2000

Appl. No.:

09/611494

Inventors:

Dennis B. Jones - Orange CA
Andrew Cheng - Cerritos CA
Eric Juntwait - Irvine CA

Assignee:

Hon Hai Precision Ind. Co., Ltd. - Taipei Hsien

International Classification:

H01R 905

US Classification:

439579

Abstract:

A cable connector for connecting a plurality of coaxial cables to a printed circuit board comprises an insulative housing mounted on a printed circuit board, a plurality of signal terminals, a grounding terminal and a snap cover secured on the housing. The housing defines a plurality of first receiving portions for receiving the coaxial cables. Each signal terminal comprises a solder portion soldered on the printed circuit board and a contact portion extending into the corresponding first receiving portion of the housing. The grounding terminal received in the housing comprises a plurality of solder sections soldered to the printed circuit board and a plurality of tabs extending into the first receiving portions for connecting with metal braids of the coaxial cables, establishing grounding connections. The snap cover defines a plurality of second receiving portions corresponding to the first receiving portions of the housing. The coaxial cables are clamped between the first receiving portions and the second receiving portions thereby pressing conductors of the coaxial cables to contact the contact portion of corresponding signal terminals and preventing displacement of the coaxial cables from the cable connector.

US Patent:

6371781, Apr 16, 2002

Filed:

Sep 1, 2000

Appl. No.:

09/653926

Inventors:

Dennis B. Jones - Orange CA
Andrew Cheng - Cerritos CA

Assignee:

Hon Hai Aprecision Ind. Co., Ltd. - Taipei Hsien

International Classification:

H01R 1362

US Classification:

439260

Abstract:

An enhanced memory module assembly comprises a memory module including a substrate with a plurality of conductive traces arranged in an edge thereof. A connector includes a first housing having a memory module receiving slot extending along a longitudinal direction thereof. The housing further defines a plurality of terminal cells with a plurality of first terminals assembled therein. Each terminal includes a first end extending into the elongate slot for electrically contacting with the conductive traces. A ZIF device is arranged between the memory module and includes a pair of actuator receiving slots located in the housing and in communicating with the terminal cells, and an actuator attached to the memory module. The actuator includes a pair of actuating plates extending into the actuator receiving slots thereby pushing the terminals in electrical contact with the conductive traces when the memory module is completely inserted therein.

US Patent:

D467547, Dec 24, 2002

Filed:

Aug 23, 2001

Appl. No.:

29/147230

Inventors:

Dennis B. Jones - Orange CA
Andrew C. Cheng - Cerritos CA

Assignee:

Hon Hai Precision Ind. Co., Ltd. - Taipei Hsien

International Classification:

1303

US Classification:

D13147

US Patent:

6634891, Oct 21, 2003

Filed:

Jun 11, 2002

Appl. No.:

10/170989

Inventors:

Andrew C. Cheng - Diamond Bar CA

Assignee:

Hon Hai Precision Ind. Co., Ltd. - Taipei Hsien

International Classification:

H01R 1200

US Classification:

439 68, 439923, 29741, 29764, 29758, 294 992, 294202

Abstract:

A reworking device ( ) for removing an electrical element ( ) mounted on a motherboard ( ) comprises a body portion ( ), a pair of hooks ( ) formed at two opposite ends of the body portion for engaging with a bottom surface of the element, and an elastic arm ( ) formed at each of the two opposite ends of the body portion to lift up the element-when solders are reflown.

US Patent:

6740820, May 25, 2004

Filed:

Dec 11, 2001

Appl. No.:

10/020287

Inventors:

Andrew Cheng - Diamond Bar CA 91765

International Classification:

H05K 116

US Classification:

174260, 174261, 174251, 361704, 439876

Abstract:

An electrical system includes a printed circuit board with conductive traces formed thereon. An electrical connector includes an insulative base with an array of cells defined therein. Each cell receives and retains a conductive contact having a tail portion corresponding to the conductive traces. Soldering pre-forms are arranged between the conductive traces and the tail portions. A heat distributor includes a thermally conductive base plate positioned on the connector base and thermally conductive pins extending from the base plate. The base plate is positioned on the connector base with the pins inserted into the cells and thermally engaging selected contacts so as to create a homogenous heat transfer to/from the soldering pre-forms thereby eliminating heat stress among the soldering pre-forms.

US Patent:

8329447, Dec 11, 2012

Filed:

Dec 9, 2009

Appl. No.:

12/634504

Inventors:

Yang Liu - Mountain View CA, US
Rosa R. Yu - Sunnyvale CA, US
Andrew Cheng - San Jose CA, US
Qing Xia - Santa Clara CA, US
Qiang Xu - Cupertino CA, US

Assignee:

Osel, Inc. - Santa Clara CA

International Classification:

C12N 1/20
A01N 63/00

US Classification:

4352529, 424 9345

Abstract:

The invention provides a naturally occurring strain of with advantageous characteristics. The strain colonizes mucosal surfaces, particularly vaginal surfaces. The strain is also capable of rapid growth in a number of conditions and is highly viable after desiccation. Moreover, the strain is capable of preventing and reducing pathogenic infection of vaginal mucosa.

US Patent:

20030121147, Jul 3, 2003

Filed:

Dec 6, 2001

Appl. No.:

10/006873

Inventors:

Andrew Cheng - Diamond Bar CA, US

International Classification:

H01R024/00

US Classification:

029/854000, 029/857000, 439/677000, 439/675000

Abstract:

A method for configuring an electrical connector having a housing comprises the step of, 1) providing at least a pair of silos adapted to be formed on the housing of the connector; 2) providing at least a silo with a key thereon; 3) arranging the silos into different combinations established by events different from one another; and 4) selecting a first event from the combinations for serving configuration of the connector.

US Patent:

20040111876, Jun 17, 2004

Filed:

Dec 13, 2002

Appl. No.:

10/318958

Inventors:

Andrew Cheng - Diamond Bar CA, US

International Classification:

B23P019/00
H01R003/00

US Classification:

029/762000, 029/764000, 029/840000

Abstract:

A reworking device () for removing a socket connector () soldered to a PCB () comprises a body portion () and a pair of movable clips () assembled to the body portion. Each of the movable clips has a hook () for hooking a portion of the socket connector. A spring () is compressively mounted on each of the movable clips for providing an upward force to the hook to pull the socket connector upwardly from the PCB when a soldering connection between the PCB and the socket connector is heated to reflow. A pair of standing legs () is provided to stand on an upper surface of the PCB beside the socket connector. The body portion is mounted on the standing legs.