JACKY C CHAN
Engineering in Framingham, MA
License number
Massachusetts 20080
Type
Engineer in Training
Address
Address
Framingham, MA 01702
Personal information
See more information about JACKY C CHAN at radaris.comName
Address
Phone
57 Sunderland Rd, Worcester, MA 01604
334 Mount Wayte Ave, Framingham, MA 01702
57 Sunderland Rd, Worcester, MA 01604
53 Sunderland Rd, Worcester, MA 01604
Framingham, MA
Professional information
Method For Ambient Temperature Compensating Thermostat Metal Actuated Electrical Devices Having A Plurality Of Current Ratings
US Patent:
7397339, Jul 8, 2008
Filed:
Oct 14, 2005
Appl. No.:
11/250646
Inventors:
Peter G. Berg - North Attleboro MA, US
Jacky C. Chan - Framingham MA, US
Jacky C. Chan - Framingham MA, US
Assignee:
Sensata Technologies, Inc. - Attleboro MA
International Classification:
H01H 71/16, H01H 33/30, H01H 9/30
US Classification:
337 99, 337101, 337 67, 337 82, 337378
Abstract:
A thermally actuated device, such as an electrical circuit breaker () is provided with an ambient temperature compensation thermostat metal member () selected so that it bends when subjected to changes in temperature and compensates for ambient temperature effects on a thermostat metal trip arm for a selected current rating. Movement of such thermostat metal member is directly proportional to the flexivity of the material and to the square of the length of the member and indirectly proportional to the thickness of the member. Since packaging constraints make changes in length impractical, compensation members used to provide temperature compensation for different current ratings of the device typically have been made by using members of different thickness. In accordance with the invention, ambient temperature compensation members for a family of devices having a plurality of different current ratings is provided by changing the effective length of respective blank thermal compensation members by stamping selected deformations () appropriate for each current rating in respective blank compensation members.
Circuit Breaker With Improved Connector Socket
US Patent:
7210970, May 1, 2007
Filed:
Mar 22, 2006
Appl. No.:
11/386370
Inventors:
Christian V. Pellon - Norton MA, US
Michael J. Lavado - Griswold CT, US
Jacky C. Chan - Framingham MA, US
Michael J. Lavado - Griswold CT, US
Jacky C. Chan - Framingham MA, US
Assignee:
Sensata Technologies, Inc. - Attleboro MA
International Classification:
H01R 4/36
US Classification:
439810, 335132, 335 83, 335 6, 335202
Abstract:
A shouldered connector pin socket () is shown having an open channel () formed in the face surface of a wall member of a circuit breaker housing. An electrically conductive spring member (′) is received over the channel and is formed with a first set of spring fingers () that are adapted to engage a connector pin along a first axial length () of the channel making electrical engagement with the pin and urging the pin against the channel surface as the pin is slidingly inserted into the channel. The spring fingers urge the flange of the connector pin into a recess formed by a stepped shoulder defining the entrance to a second axial length () with the stepped shoulder and the spring fingers cooperating to retain the connector pin in the channel. A second set of spring contact fingers () can also be used to engage the connector pin along a third axial length () and thereby provide a redundant contact system.
Portable Audio System Having Waveguide Structure
US Patent:
8103035, Jan 24, 2012
Filed:
Dec 22, 2006
Appl. No.:
11/615653
Inventors:
Robert Preston Parker - Westborough MA, US
Roman Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
Roman Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
H04R 1/20
US Classification:
381338, 381345
Abstract:
An apparatus includes a housing. A waveguide is located within the housing. The waveguide includes a first subsection that bends around a first axis and has a first cross-sectional area with an aspect ratio that is substantially different from unity. A second subsection bends around a second axis that is non-parallel to the first axis and includes a second cross-sectional area with an aspect ratio that is substantially different from unity. A third subsection acoustically couples the first subsection to the second subsection. The third subsection includes a third cross-sectional area with an aspect ration that varies between the first aspect ratio and the second aspect ratio.
Acoustic Waveguide Vibration Damping
US Patent:
8151929, Apr 10, 2012
Filed:
Jun 30, 2011
Appl. No.:
13/173235
Inventors:
Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
A47B 81/06, F16F 7/00, G01S 15/00, H04R 1/20, H05K 5/00
US Classification:
181151, 181145, 181155, 181156, 181199, 181207, 367 99, 381337, 381338, 381353
Abstract:
An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide.
Low Frequency Enclosure For Video Display Devices
US Patent:
8295526, Oct 23, 2012
Filed:
Sep 21, 2010
Appl. No.:
12/886750
Inventors:
Kevin J. Bastyr - St. Francis WI, US
Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Hilmar Lehnert - Framingham MA, US
Robert Preston Parker - Westborough MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Hilmar Lehnert - Framingham MA, US
Robert Preston Parker - Westborough MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
H04R 1/20, H04R 9/06, H04R 1/02
US Classification:
381337, 381 89, 381333
Abstract:
A television includes a flat panel display device for presenting video images, a housing for supporting the flat panel display device, and a first acoustic volume located substantially (a) inside the housing, and (b) behind the display device. Two or more acoustic drivers are provided for acoustically energizing the acoustic volume. The drivers are positioned such that acoustic energy put into the acoustic volume from the drivers is substantially additive and vibrational energy from the drivers substantially cancels out.
Portable Audio System Having Waveguide Structure
US Patent:
8503709, Aug 6, 2013
Filed:
Feb 24, 2011
Appl. No.:
13/033893
Inventors:
Robert Preston Parker - Westborough MA, US
Roman N. Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
Roman N. Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
H04R 9/06
US Classification:
381338, 381337
Abstract:
An apparatus includes a housing. A waveguide is located within the housing. The waveguide includes a first subsection that bends around a first axis and has a first cross-sectional area with an aspect ratio that is substantially different from unity. A second subsection bends around a second axis that is non-parallel to the first axis and includes a second cross-sectional area with an aspect ratio that is substantially different from unity. A third subsection acoustically couples the first subsection to the second subsection. The third subsection includes a third cross-sectional area with an aspect ratio that varies between the first aspect ratio and the second aspect ratio.
Portable Audio System Having Waveguide Structure
US Patent:
2013031, Nov 28, 2013
Filed:
Aug 1, 2013
Appl. No.:
13/956460
Inventors:
Robert Preston Parker - Westborough MA, US
Roman N. Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
Roman N. Litovsky - Newton MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Todd Charter Brown - Marlborough MA, US
Lino A. Pucci - Wellesley Hills MA, US
International Classification:
H04R 1/02
US Classification:
381345
Abstract:
An audio system includes a housing and an acoustic exit that exits the housing, and has a configuration that facilitates the grasping of the housing with a plurality of fingers from a single human hand. The acoustic exit is located adjacent an exterior surface of the housing such that the shape of the exit together with the exterior surface facilitates grasping of the housing with a plurality of fingers and the thumb from the single human hand and the acoustic exit exits a back surface of the housing such that the plurality of fingers can be inserted into the exit while the thumb of the same hand can rest on at least one of the top surface and the front surface of the housing.
Acoustic Waveguide Vibration Damping
US Patent:
8002078, Aug 23, 2011
Filed:
Feb 19, 2009
Appl. No.:
12/388723
Inventors:
Jacky Chi-Hung Chan - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Brian J. Gawronski - Framingham MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
A47B 81/06, F16F 7/00, G01S 15/00, H04R 1/20, H05K 5/00
US Classification:
181151, 181145, 181155, 181156, 181199, 181207, 367 99, 381337, 381338, 381353
Abstract:
An acoustic waveguide with at least two portions coupled by vibration damping structure. The vibration damping structure may be a conformable material such as closed cell foam. The vibration damping structure may further include structure for inhibiting motion in a direction transverse to the interface between the vibration damping structure and a portion of the waveguide.
Audio System For Portable Device
US Patent:
8103033, Jan 24, 2012
Filed:
May 31, 2007
Appl. No.:
11/756299
Inventors:
Steven R Drake - Concord MA, US
Jeffery P. Copeland - Jefferson MA, US
K. Venkat Subramaniam - Westborough MA, US
Daniel Harmon - Hollis NH, US
Todd Charter Brown - Marlborough MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Jeffery P. Copeland - Jefferson MA, US
K. Venkat Subramaniam - Westborough MA, US
Daniel Harmon - Hollis NH, US
Todd Charter Brown - Marlborough MA, US
Jacky Chi-Hung Chan - Framingham MA, US
Assignee:
Bose Corporation - Framingham MA
International Classification:
H04R 1/02, G10K 11/16
US Classification:
381332, 381333, 381334, 381388, 381 717
Abstract:
An audio system has an enclosure and a transducer that is mounted to the enclosure. The transducer creates a vibration of the enclosure in response to being driven by an audio signal. A cradle assembly mechanically couples a portable device to the enclosure through one or more isolators such that only a portion of the vibration is coupled to the portable device. The enclosure is supported substantially entirely by the cradle assembly.