Wai Kay Wong

US Patent:

8141400, Mar 27, 2012

Filed:

Mar 23, 2010

Appl. No.:

12/730148

Inventors:

Birk Cliff Sorensen - Whittier CA, US
Ping Hsien Tsai - Walnut CA, US
Wai Pang Wong - Orange CT, US
John Edward Walsh - Wallingford CT, US
Louis Romo Martinez - Montebello CA, US

Assignee:

Emtek Products, Inc. - City of Industry CA

International Classification:

E05B 47/00

US Classification:

702791, 70277, 702781, 702787, 70280, 70281, 70282, 70283, 70468, 70472, 70190, 340 554, 340 564, 340 57

Abstract:

A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2 and ⅛ inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.

US Patent:

8176761, May 15, 2012

Filed:

Nov 11, 2011

Appl. No.:

13/294616

Inventors:

Birk Cliff Sorensen - Whittier CA, US
Ping Hsien Tsai - Walnut CA, US
Wai Pang Wong - Orange CT, US
John Edward Walsh - Wallingford CT, US
Louls Romo Martinez - Montebello CA, US

Assignee:

Emtek Products, Inc. - City of Industry CA

International Classification:

E05B 47/00

US Classification:

702791, 70277, 702781, 702787, 292137, 292169, 292139, 292143

Abstract:

A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2⅛ inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.

US Patent:

8480653, Jul 9, 2013

Filed:

May 22, 2008

Appl. No.:

12/125903

Inventors:

Christopher J. Birchard - Pasadena CA, US
Jerett A. Creed - Hermosa Beach CA, US
Wai Chung Wong - Chino Hills CA, US

Assignee:

Biosense Webster, Inc. - Diamond Bar CA

International Classification:

A61M 37/00
A61M 31/00
A61M 25/00
A61B 18/18

US Classification:

604528, 604 9501, 606 41

Abstract:

A catheter adapted for ablation, mapping, injection, and directional control by an external magnetic system has a catheter body, an intermediate section, and a tip section having a tip electrode configured with an omnidirectional distal end and a concentric needle port. The tip electrode houses a magnetic device and a position sensor arranged in an integrated configuration, wherein the configuration facilitates a path in the tip section for a component, including an injection needle, to extend through the tip section for extension and retraction with reduced stress and friction. The integrated configuration is an efficient use of space in the tip electrode that allows the tip section to carry both the position sensor for determining location and orientation of the tip section and the necessary volume of magnetic or magnetizable material to accomplish magnetic navigation. The catheter also includes a very soft and flexible intermediate section and an even softer and more flexible distal transitional section carrying additional magnetic members to facilitate remote magnetic navigation.

US Patent:

20090099514, Apr 16, 2009

Filed:

May 22, 2008

Appl. No.:

12/125893

Inventors:

Christopher J. Birchard - Pasadena CA, US
Jerett A. Creed - Hermosa Beach CA, US
Wai Chung Wong - Chino Hills CA, US

International Classification:

A61M 25/092

US Classification:

604 9501

Abstract:

A device and system for automating catheter needle injection has a first actuator that extends a needle past the distal end of the catheter, a second actuator that depresses a plunger to deliver injectate through the needle and an agitator assembly to agitate the injectate before it enters the needle. The device and system may also include a force sensor coupled to the plunger to sense pressure to detect occlusion, and an optical sensor to sense movement of the second actuator.

US Patent:

20130218076, Aug 22, 2013

Filed:

Mar 18, 2013

Appl. No.:

13/846904

Inventors:

Jerett A. Creed - Hermosa Beach CA, US
Wai Chung Wong - Chino Hills CA, US

Assignee:

BIOSENSE WEBSTER, INC. - Diamond Bar CA

International Classification:

A61M 25/01

US Classification:

604 9501

Abstract:

A catheter adapted for ablation, mapping, injection, and directional control by an external magnetic system has a catheter body, an intermediate section, and a tip section having a tip electrode configured with an omnidirectional distal end and a concentric needle port. The tip electrode houses a magnetic device and a position sensor arranged in an integrated configuration, wherein the configuration facilitates a path in the tip section for a component, including an injection needle, to extend through the tip section for extension and retraction with reduced stress and friction. The integrated configuration is an efficient use of space in the tip electrode that allows the tip section to carry both the position sensor for determining location and orientation of the tip section and the necessary volume of magnetic or magnetizable material to accomplish magnetic navigation. The catheter also includes a very soft and flexible intermediate section and an even softer and more flexible distal transitional section carrying additional magnetic members to facilitate remote magnetic navigation.

US Patent:

55657788, Oct 15, 1996

Filed:

Jun 5, 1995

Appl. No.:

8/461559

Inventors:

William W. Brey - Sunnyvale CA
Weston A. Anderson - Palo Alto CA
Wai H. Wong - Monterey Park CA
Luiz F. Fuks - Fremont CA
Vincent Y. Kotsubo - Sunnyvale CA
Richard S. Withers - Sunnyvale CA

Assignee:

Conductus, Inc. - Sunnyvale CA

International Classification:

G01V 300

US Classification:

324318

Abstract:

A resonant coil for nuclear magnetic spectroscopy and microscopy is provided, in which the coil is in the form of nested, interrupted loops of a conductive material forming a distributed inductive element and having a plurality of capacitive elements with capacitance distributed over the periphery of the loops. The coil is preferably formed as a thin film of a superconductive material on an electrically nonconductive substrate.

US Patent:

55721273, Nov 5, 1996

Filed:

Jun 7, 1995

Appl. No.:

8/473696

Inventors:

Wai H. Wong - Monterey Park CA
Vincent Y. Kotsubo - Sunnyvale CA

Assignee:

Conductus, Inc.

International Classification:

G01V 300
G01V 314

US Classification:

324315

Abstract:

Inhomogeneities in the magnetic field in the vicinity of a superconducting NMR receiver coil are avoided by placing the probe, at about room temperature, within the magnetic field, cooling rapidly to just above the critical temperature of the superconductor and then controllably cooling the coil to operating temperature at a rate of 3 K. /minute or less.

US Patent:

20150238731, Aug 27, 2015

Filed:

Apr 27, 2015

Appl. No.:

14/697520

Inventors:

- Diamond Bar CA, US
Jerett A. Creed - Hermosa Beach CA, US
Wai Chung Wong - Chino Hills CA, US

International Classification:

A61M 25/01
A61M 25/00
A61B 5/06
A61B 18/14
A61B 5/042

Abstract:

A catheter adapted for ablation, mapping, injection, and directional control by an external magnetic system has a catheter body, an intermediate section, and a tip section having a tip electrode configured with an omnidirectional distal end and a concentric needle port. The tip electrode houses a magnetic device and a position sensor arranged in an integrated configuration, wherein the configuration facilitates a path in the tip section for a component, including an injection needle, to extend through the tip section for extension and retraction with reduced stress and friction. The integrated configuration is an efficient use of space in the tip electrode that allows the tip section to carry both the position sensor for determining location and orientation of the tip section and the necessary volume of magnetic or magnetizable material to accomplish magnetic navigation. The catheter also includes a very soft and flexible intermediate section and an even softer and more flexible distal transitional section carrying additional magnetic members to facilitate remote magnetic navigation.