Yun Hsin Wu

US Patent:

D531137, Oct 31, 2006

Filed:

Jan 12, 2006

Appl. No.:

29/251779

Inventors:

Yun Wu - Bayside NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

1303

US Classification:

D13168

US Patent:

D534875, Jan 9, 2007

Filed:

Dec 12, 2005

Appl. No.:

29/244714

Inventors:

Yun Wu - Bayside NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

1303

US Classification:

D13169

US Patent:

7211798, May 1, 2007

Filed:

Aug 22, 2005

Appl. No.:

11/207729

Inventors:

Yun Wu - Bayside NY, US
John Bandringa - Everett WA, US
Paul Soccoli - New Hyde Park NY, US
Nehal Shah - Westbury NY, US
Alfred J. Lombardi - Syosset NY, US
Edward Uftring - Syosset NY, US
Adam Kevelos - Plainview NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

G01J 5/02

US Classification:

250342, 250353, 250DIG 1

Abstract:

A sensor mounting mechanism that includes a base member adapted to be mounted to a structure and a base neck having a first end and a second end where the first end is adapted to be coupled to a sensor with a ball-socket coupling and the second end is coupled to the base member with a rotating coupling. The mounting mechanism provides fine and coarse adjustment means for adjusting the scanning area of the sensor such as an PIR occupancy sensor without the use of a tool. The sensor includes a detachable lens holder for easy replacement of the lens.

US Patent:

D576566, Sep 9, 2008

Filed:

Jul 18, 2007

Appl. No.:

29/289426

Inventors:

Yun (Sandy) Wu - Bayside NY, US
Alfred J. Lombardi - Syosset NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY

International Classification:

1303

US Classification:

D13169

US Patent:

7560696, Jul 14, 2009

Filed:

Apr 30, 2007

Appl. No.:

11/742542

Inventors:

Yun Wu - Bayside NY, US
John Bandringa - Everett WA, US
Paul Soccoli - New Hyde Park NY, US
Nehal Shah - Westbury NY, US
Alfred J. Lombardi - Syosset NY, US
Edward Uftring - Syosset NY, US
Adam Kevelos - Plainview NY, US
Thomas Leonard - Tualatin OR, US
David Weigand - Portland OR, US
John Engel - Portland OR, US

Assignee:

Leviton Manufacturing Company, Inc. - Little Neck NY

International Classification:

G01J 5/02

US Classification:

250342, 250DIG 1

Abstract:

A sensor mounting mechanism that includes a base member adapted to be mounted to a structure and a base neck having a first end and a second end where the first end is adapted to be coupled to a sensor with a ball-socket coupling and the second end is coupled to the base member with a rotating coupling. The mounting mechanism provides fine and coarse adjustment means for adjusting the scanning area of the sensor such as an PIR occupancy sensor without the use of a tool. The sensor includes a detachable lens holder for easy replacement of the lens.

US Patent:

8003904, Aug 23, 2011

Filed:

Feb 15, 2007

Appl. No.:

11/675329

Inventors:

Yun Wu - Bayside NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Melville NY

International Classification:

H01H 3/00
H01H 3/16

US Classification:

200 6172, 200 18, 323905

Abstract:

A dimmer switch includes a first switch for coupling to a power source, a second switch, a dimmer module, and a main actuator movable between an operational position and a disconnected position. The main actuator includes a first switch actuator and a second switch actuator. The first switch may be a normally-closed air-gap switch including a lever in contact with the first switch actuator. Movement of the main actuator between the operational position and the disconnected position is effective to open the switch. The main actuator is pivotally and slidably coupled to a frame. A coupling between the main actuator and the frame includes a pivot in a pivot holder; a partial cylindrical surface of the pivot is in contact with a surface of the pivot holder which includes a first portion having a partial cylindrical surface and a second portion having a ramp surface.

US Patent:

8459812, Jun 11, 2013

Filed:

Apr 27, 2010

Appl. No.:

12/768603

Inventors:

Yun Wu - Queens NY, US
Alfred J. Lombardi - Syosset NY, US

Assignee:

Leviton Manufacturing Co., Inc. - Melville NY

International Classification:

F21V 25/00
H01H 3/04
H05B 41/16

US Classification:

362 2301, 362800, 362583, 362235, 362 85, 200335, 200339, 200452, 200454, 315246

Abstract:

In one embodiment, a system may include an electrical device having an indicator light source, an actuator having a window, a viewing piece arranged to be visible through the window, and a light guide arranged to guide light from the light source to the viewing piece. The viewing piece may have a receiving portion arranged to receive light from the light guide, and the width of the receiving portion may be substantially larger than the width of the light guide. In another embodiment, a system may include an electrical device having a first support member, and an actuator having a second support member. The actuator may be adapted to move along a path of motion from a retracted position to an extended position, and the first and second support members may be adapted to support the actuator in the extended position with forces that are substantially balanced along the path of motion.

US Patent:

20060232227, Oct 19, 2006

Filed:

Feb 27, 2006

Appl. No.:

11/363888

Inventors:

Michael Ostrovsky - Brooklyn NY, US
Yun Wu - Bayside NY, US
Jenkin Hua - Plainsboro NJ, US
Alfred Lombardi - Syosset NY, US
William Ross - West Hartford CT, US

International Classification:

H05B 37/02

US Classification:

315291000

Abstract:

There is disclosed a two wire touch operated dimmer controlled by a membrane potentiometer. Adjusting the DC potential on the membrane potentiometer changes the output potential to a load. In many prior art touch operated dimmers controlled by membrane potentiometers, there is no isolation between the line power and the DC voltage on the membrane potentiometer. Thus, if the membrane is damaged, a user will be exposed to a ground current and possible shock when the membrane is touched. This invention avoids the above noted unsafe condition by employing a high frequency generator and a ground fault current limiting circuit which includes resistors.

Author:

Yun Wu

ISBN #:

7531200252

Author:

Yun Wu

ISBN #:

7806962166