Frank Z Feng from Lakewood Ranch, FL, age 71

Us Patents

Electrical Inductor Assembly
view source
US Patent:

7710228, May 4, 2010
Filed:

Nov 16, 2007
Appl. No.:

11/941103
Inventors:

Frank Z. Feng - Loves Park IL, US
Dwight D. Schmitt - Rockford IL, US
Steven Schwitters - Rockford IL, US
Clifford G. Thiel - Lanark IL, US
Debabrata Pal - Hoffman Estates IL, US
John Huss - Roscoe IL, US
John Horowy - Rockford IL, US
Joseph Sukkar - Rockford IL, US
Dirk Derr - Shelby IL, US
Mark Hamilton Severson - Rockford IL, US
Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:

H01F 27/08
H01F 27/10
H01F 21/06
H01F 27/30
H01F 27/28
H01F 7/06
F02N 11/08
US Classification:

336 61, 336 55, 336 57, 336 58, 336131, 336170, 336179, 336198, 336196, 336229, 296021, 29605, 29606, 290 48
Abstract:

An electrical inductor assembly comprises an inductor core having a circular shape, a wire guide that surrounds the inductor core and includes a plurality of slots, at least one of the slots forming a path winding around the inductor core, and at least one wire placed in one of the plurality of slots to form a winding. A method of forming an electrical inductor assembly comprises forming an inductor core having a circular shape, surrounding the inductor core with a wire guide, winding at least one wire around the inductor core along a slot in the wire guide, and applying an insulating material to the slot containing the at least one wire to electrically insulate the at least one wire.

Lightning Strike Mitigation For Aircraft
view source
US Patent:

8023245, Sep 20, 2011
Filed:

Oct 13, 2008
Appl. No.:

12/250307
Inventors:

Frank Z. Feng - Loves Park IL, US
Steven A. Davidson - Pecatonica IL, US
Assignee:

Hamilton Sundstrand Corporation - Rockford IL
International Classification:

H05F 3/00
US Classification:

361218
Abstract:

A lightning mitigation system for use on an aircraft employs parasitic capacitance associated with a motor/generator to dissipate voltage provided as a result of a lightning strike. The motor/generator includes a set of windings defined by an outer periphery and a case that surrounds the set of windings. A parasitic capacitance is defined by the airgap separating the windings of the motor/generator from the case. A motor controller is electrically connected to the set of windings and includes a filter circuit. The filter circuit includes an equivalent capacitance that is selected based on the parasitic capacitance associated with the motor/generator such that a lightning strike results in a large portion of the voltage being dissipated by the parasitic capacitance of the motor/generator.

Light-Weight, Conduction-Cooled Inductor
view source
US Patent:

8154372, Apr 10, 2012
Filed:

Dec 6, 2007
Appl. No.:

11/999614
Inventors:

Frank Z. Feng - Loves Park IL, US
Steven Schwitters - Rockford IL, US
Clifford G. Thiel - Lanark IL, US
Debabrata Pal - Hoffman Estates IL, US
John Horowy - Rockford IL, US
Assignee:

Hamilton Sundstrand Corporation - Rockford IL
International Classification:

H01F 27/02
H01F 27/28
US Classification:

336 90, 336 92, 336225, 336229
Abstract:

A lightweight inductor for the motor controller of an aircraft starter includes a toroidal inductor core divided into multiple sections that are separated by a thermally conductive, but electrically insulating, material. The inductor core is wound with wire and positioned inside of an electrically and thermally conductive container, which acts as a heat sink and EMI shield, while also reducing eddy currents within the inductor core.

Transformer Assembly With Enhanced Air Cooling
view source
US Patent:

8368497, Feb 5, 2013
Filed:

Mar 17, 2011
Appl. No.:

13/050509
Inventors:

Debabrata Pal - Hoffman Estates IL, US
Mark W. Metzler - Davis IL, US
Frank Z. Feng - Loves Park IL, US
Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:

H01F 27/08
H01F 27/02
US Classification:

336 60, 336 59
Abstract:

A cooling system for a transformer comprises a fan duct and a housing which together enclose an interior space. A transformer located in the interior space is mounted on the fan duct, and has a plurality of core sections surrounded by windings and separated by gaps. An air channeling structure is located between the transformer and the fan duct. A cooling airflow path extends through the air channeling structure, and between core sections of the transformer.

Multi-Level Parallel Phase Converter
view source
US Patent:

8374009, Feb 12, 2013
Filed:

Mar 25, 2010
Appl. No.:

12/731280
Inventors:

Frank Z. Feng - Loves Park IL, US
Waleed M. Said - Rockford IL, US
Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:

H02M 7/00
US Classification:

363 65
Abstract:

A multi-level parallel phase power converter has a power source, a converter, and an electrical node. The converter includes multiple converter modules. Each of the converter modules has multiple multi-level power converters, a poly-phase interphase inductor, and a set of poly-phase power summing connections. The summed power of each of the multiple converter modules are connected together to form a single poly-phase power converter.

Soft Starter For Phase-Shifting Autotransformer Ac-Dc Power Converter
view source
US Patent:

8576594, Nov 5, 2013
Filed:

Apr 4, 2011
Appl. No.:

13/079128
Inventors:

Frank Z. Feng - Loves Park IL, US
Barry John Parker - Rockford IL, US
Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:

H02M 7/217
US Classification:

363 89, 323361, 323908, 363 49, 363 92
Abstract:

An AC-DC power converter has a phase-shifting autotransformer based rectifiers and DC capacitors. Soft start of the AC-DC power converter is achieved by designing the autotransformer to operate at a low peak flux density at a point of AC voltage step application (initial turn on). The addition of a controlled impedance segregates capacitor charging from the initial magnetizing process of the autotransformer.

Lightweight Electromagnetic Interference Filter
view source
US Patent:

7994876, Aug 9, 2011
Filed:

Jul 23, 2008
Appl. No.:

12/220279
Inventors:

Frank Z. Feng - Loves Park IL, US
Dwight D. Schmitt - Rockford IL, US
Donal E. Baker - Rockford IL, US
John Huss - Roscoe IL, US
Curtis B. White - Rockford IL, US
Jamal Shafii - Loves Park IL, US
Mark F. Stunkel - Palatine IL, US
Assignee:

Hamilton Sundstrand Corporation - Rockford IL
International Classification:

H03H 7/06
US Classification:

333181, 333172, 333177
Abstract:

A low pass filter includes a differential mode filter and a common mode filter. The common mode portion of the filter includes at least one inductor and one capacitor, as well as a damping circuit with at least one capacitor. The low pass filter has a reduced weight, which is useful in circumstances in which weight is a significant factor, such as in aircraft.

High Current, Multiple Air Gap, Conduction Cooled, Stacked Lamination Inductor
view source
US Patent:

20070080769, Apr 12, 2007
Filed:

Oct 11, 2005
Appl. No.:

11/247575
Inventors:

Clifford Thiel - Stillman Valley IL, US
Darin Driessen - Rockford IL, US
Debabrata Pal - Hoffman Estates IL, US
Frank Feng - Loves Park IL, US
International Classification:

H01F 27/06
US Classification:

336065000
Abstract:

A power inductor assembly includes and multiple coil sections disposed upon a mounting frame. Multiple winding sections each encircle one of the multiple core sections and a portion of the mounting frame. Air gap spacers separate adjacent core sections. The arrangement facilitates removal of thermal energy from the magnetic core. Lamination build direction normal to inductor mounting surface minimizes eddy current losses.

Resumes

Frank Feng

view source

Frank Feng

view source

Medicine Doctors

Frank L. Feng

view source

Specialties:

Orthopaedic Surgery, Orthopaedic Surgery Of Spine

Work:

Sequoia Orthopaedics & Spine Institute
1337 S Lovers Ln, Visalia, CA 93292
5597337888 (phone), 5597332521 (fax)

Education:

Medical School
Western Univ of Health Sciences College of Osteopathic Medicine of the Pacific
Graduated: 1997

Procedures:

Spinal Cord Surgery
Spinal Fusion
Spinal Surgery
Arthrocentesis
Carpal Tunnel Decompression
Hip Replacement
Hip/Femur Fractures and Dislocations
Knee Arthroscopy
Knee Replacement
Lower Arm/Elbow/Wrist Fractures and Dislocations
Lower Leg/Ankle Fractures and Dislocations
Shoulder Surgery

Conditions:

Acute Bronchitis
Acute Sinusitis
Carpel Tunnel Syndrome
Diabetes Mellitus (DM)
Disorders of Lipoid Metabolism

Languages:

English

Description:

Dr. Feng graduated from the Western Univ of Health Sciences College of Osteopathic Medicine of the Pacific in 1997. He works in Visalia, CA and specializes in Orthopaedic Surgery and Orthopaedic Surgery Of Spine. Dr. Feng is affiliated with Kaweah Delta South Campus.