Patents by Inventor Sim Teik Yeoh

Sim Teik Yeoh 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).

  • Publication number: 20100224033
    Abstract: The invention relates to a hand-held machine tool, particularly a rotary percussion drill, comprising an electric motor (10) for driving a drive shaft (12), a multistage gear system (30) for coupling the drive shaft (12) to an output shaft (51), and a mechanical impact unit (50) for percussively driving an inserted tool in a tool holder (62).
    Type: Application
    Filed: July 31, 2007
    Publication date: September 9, 2010
    Inventors: Sim Teik Yeoh, Manfred Lutz
  • Patent number: 7682035
    Abstract: A housing device for a hand-held power tool has at least one see-through region composed of a transparent plastic, and having an interior side configured as a carrier for an element selected from the group consisting of an information element, a signal element, and both; and also a hand-held power tool is provided with such a housing device.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: March 23, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Steffen Wuensch, Wolfgang Hirschburger, Manfred Lutz, Sim Teik Yeoh
  • Patent number: 7498526
    Abstract: A cordless screwdriver, having a housing (12, 18) with a pistol grip (14) with an ON/OFF button (26) and a rechargeable battery (40) inserted into it, in particular fixedly and with charging contact tongues (37) associated with the battery (40), is made safer and more convenient by providing that by means of the toggle switch (26), extending in elongated fashion over the inside of the pistol grip (14) and in particular pivotably supported, a plurality of power circuits of the cordless screwdriver (10) are interruptable and closable over the actuation stroke of the toggle switch successively independently of one another.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 3, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Lohr, Heiko Roehm, Wolfgang Hirschburger, Sven Kageler, Mohsein Wan, Abdul Aziz Zulfikar, Sim Teik Yeoh, Joseph Siang Choon Lim
  • Publication number: 20080073092
    Abstract: A mechanical percussion mechanism for a percussion drive of a tool insert in a handheld power tool has a rotatably supported drive shaft, a percussion body connected to the drive shaft in a manner fixed against relative rotation and supported axially movable relative to the drive shaft, a rotatably supported driven shaft connected to the drive shaft in a manner fixed against relative rotation, the percussion body having drive cams and the driven shaft having drive cams, which drive cams of the percussion body and the driven shaft are bringable into operative connection for a percussion drive of the tool insert, and an axial stop provided for the percussion body.
    Type: Application
    Filed: April 27, 2007
    Publication date: March 27, 2008
    Inventors: Sim Teik Yeoh, Siew Yuen Lee, Manfred Lutz, Chin Aun Ng
  • Publication number: 20080074865
    Abstract: A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 27, 2008
    Inventors: Manfred Lutz, Sim Teik Yeoh, Florian Esenwein