Patents by Inventor Wah Pong Chan

Wah Pong Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10591296
    Abstract: A laser leveling tool comprises at least one laser diode for emitting a laser beam; a micro controller unit for controlling the operation of the laser diode; and a thermal sensor for sensing the internal temperature of the laser leveling tool; wherein the micro controller unit is configured to reduce the operation power of the laser diode when the sensed internal temperature reaches a temperature threshold.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: March 17, 2020
    Assignee: Robert Bosch Co., Ltd.
    Inventors: Yat Shan Kwan, Wah Pong Chan, Eric Hung-Ying Yuen
  • Publication number: 20180120103
    Abstract: A laser leveling tool comprises at least one laser diode for emitting a laser beam; a micro controller unit for controlling the operation of the laser diode; and a thermal sensor for sensing the internal temperature of the laser leveling tool; wherein the micro controller unit is configured to reduce the operation power of the laser diode when the sensed internal temperature reaches a temperature threshold.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 3, 2018
    Inventors: Yat Shan Kwan, Wah Pong Chan, Eric Hung-Ying Yuen
  • Patent number: 9441963
    Abstract: A multifunction laser leveling tool (1) is provided. The multifunction laser leveling tool (1) comprises: a housing (2); a pendulum (28) supported by the housing (2) via a universal joint so that the pendulum (28) is pivotable with respect to the housing (2) around a first axis (24) and a second axis (26) perpendicular to the first axis (24); a locking means (4) which is able to fixedly lock the pendulum (28) to the housing (2) and to release the pendulum (28) therefrom, wherein when the pendulum (28) is released, the pendulum (28) is in a plumb orientation and the first and second axes (24,26) lie in a horizontal plane; a first laser beam emitter (36) attached to the pendulum (28) for emitting a first laser plane; an angle sensing means (44) attached to the pendulum (28) for measuring the orientation of the pendulum (28); a display module having two sections (6,8) attached to the housing (2) for displaying the measured orientation of the pendulum (28).
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 13, 2016
    Assignee: Robert Bosch Company Limited
    Inventors: Eric Hung-Ying Yuen, Wah Pong Chan, Yat Wah Lam
  • Publication number: 20150000144
    Abstract: A multifunction laser leveling tool (1) is provided. The multifunction laser leveling tool (1) comprises: a housing (2); a pendulum (28) supported by the housing (2) via a universal joint so that the pendulum (28) is pivotable with respect to the housing (2) around a first axis (24) and a second axis (26) perpendicular to the first axis (24); a locking means (4) which is able to fixedly lock the pendulum (28) to the housing (2) and to release the pendulum (28) therefrom, wherein when the pendulum (28) is released, the pendulum (28) is in a plumb orientation and the first and second axes (24,26) lie in a horizontal plane; a first laser beam emitter (36) attached to the pendulum (28) for emitting a first laser plane; an angle sensing means (44) attached to the pendulum (28) for measuring the orientation of the pendulum (28); a display module having two sections (6,8) attached to the housing (2) for displaying the measured orientation of the pendulum (28).
    Type: Application
    Filed: February 17, 2012
    Publication date: January 1, 2015
    Applicant: Robert Bosch Company Limited
    Inventors: Eric Hung-Ying Yuen, Wah Pong Chan, Yat Wah Lam
  • Patent number: 7855778
    Abstract: Embodiments of the invention comprise an apparatus for use with a laser range finder configured to direct a laser beam toward a scene to measure the distance to a target in the scene and having a range finder display for displaying data, including data that is indicative of the distance to a target, wherein the apparatus comprises a protective housing, a camera module in the housing, the camera module including a lens mounted in a front end portion of the housing, and a light path through the lens to image sensor, an image sensor operatively connected to the camera module for receiving images acquired by the camera module, electronic memory for selectively storing data of images from the image sensor, circuitry for controlling the operation of the image sensor and the memory, a camera display in the housing operatively connected to the image sensor for receiving the image data and providing a visual display of the image, and a switch for storing image data in the memory.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 21, 2010
    Assignee: Robert Bosch Company Limited
    Inventors: Wai Lam Yung, Wilfried Alois Anton Bittner, Yat Wah Lam, Sai Chak Chan, Wah Pong Chan, Kwong Lam Ng, Thomas Paul Richard Zimmermann
  • Publication number: 20080266541
    Abstract: Embodiments of the invention comprise an apparatus for use with a laser range finder configured to direct a laser beam toward a scene to measure the distance to a target in the scene and having a range finder display for displaying data, including data that is indicative of the distance to a target, wherein the apparatus comprises a protective housing, a camera module in the housing, the camera module including a lens mounted in a front end portion of the housing, and a light path through the lens to image sensor, an image sensor operatively connected to the camera module for receiving images acquired by the camera module, electronic memory for selectively storing data of images from the image sensor, circuitry for controlling the operation of the image sensor and the memory, a camera display in the housing operatively connected to the image sensor for receiving the image data and providing a visual display of the image, and a switch for storing image data in the memory.
    Type: Application
    Filed: April 27, 2007
    Publication date: October 30, 2008
    Inventors: Wai Lam Yung, Wilfried Alois Anton Bittner, Yat Wah Lam, Sai Chak Chan, Wah Pong Chan, Kwong Lam Ng, Thomas Paul Richard Zimmerman