Patents by Inventor Abdul Aziz Zulfikar

Abdul Aziz Zulfikar 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: 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
  • Patent number: 7456608
    Abstract: A cordless screwdriver having a housing (12, 18), having a handle (14), in particular one that is angled in pistol fashion, having a preferably permanently installed rechargeable battery (40), having charging contact tabs (37) for charging the rechargeable battery (40), and having an output spindle (20) is always ready for use and can be picked up quickly because it has a lithium-ion (Li-ion) cell as its rechargeable battery (40) and can be placed onto a charging cradle (22) for an unlimited amount of time, in particular during pauses between uses; the charging mode is automatically initiated and in it, the cordless screwdriver (40), with regard to its output spindle (20), is positioned on the charging cradle (22) so that it is inclined, in particular by approximately 30-45°, in relation to the perpendicular and the end of the output spindle (20) points downward.
    Type: Grant
    Filed: July 24, 2004
    Date of Patent: November 25, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar
  • Publication number: 20070256914
    Abstract: The invention relates to a battery-driven screwdriver comprising a housing (12, 18) provided with a handle (14), an on/off switch (26) and, particularly, a permanently fixed rechargeable battery (40) and charge contact tongues (37) which are associated with the rechargeable battery (40). The battery-driven screwdriver is characterised in that it is safe and comfortable to use due to the on/off switch (26) being mounted in a pivotable manner and extending in a longitudinal manner over the innerside of the handle (14), said on/off switch being able to be successively interrupted and/or closed, independently from each other, during the actuation stroke of several electric circuits of the battery-driven screwdriver (10).
    Type: Application
    Filed: June 29, 2005
    Publication date: November 8, 2007
    Inventors: Guenter Lohr, Heiko Roehm, Wolfgang Hirschburger, Sven Kageler, Abdul Aziz Zulfikar, Sim Yeoh, Joseph Siang Lim
  • Patent number: 7197961
    Abstract: A cordless screwdriver, having a housing (12, 18) equipped with a handle (14), having an in particular permanently installed rechargeable battery (40), and having a transmission (72), is particularly compact, lightweight, and strong because the transmission (72), embodied in the form of a sun-and-planet gear, is simply inserted into a hollow, cylindrical transmission housing (18) and can be secured in position in it by an axial securing plate (62); the transmission housing (18) is also provided with an internal gearing and serves as the sun gear as well as being integrated into the reinforcing structure of the cordless screwdriver (10).
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: April 3, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar
  • Patent number: 7134364
    Abstract: A battery-operated screwdriver (10) with a housing (12, 18) with a grip (14), in particular with a fixedly built-in battery (40), and with charging contact tongues (37) for charging the battery (40), is designed as especially compact and lightweight because instead of a boxlike, standard ON/OFF switch, counterpart contacts (34) fixed to the tool are provided, to which a contact plate (32) that is movable by means of an ON/OFF trigger (26) and in the process is coupleable to the counterpart contacts (34) and upon their release is easily releasable, is assigned.
    Type: Grant
    Filed: July 24, 2004
    Date of Patent: November 14, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar
  • Publication number: 20060219059
    Abstract: A cordless screwdriver, having a housing (12, 18) equipped with a handle (14), having an in particular permanently installed rechargeable battery (40), and having a transmission (72), is particularly compact, lightweight, and strong because the transmission (72), embodied in the form of a sun-and-planet gear, is simply inserted into a hollow, cylindrical transmission housing (18) and can be secured in position in it by an axial securing plate (62); the transmission housing (18) is also provided with an internal gearing and serves as the sun gear as well as being integrated into the reinforcing structure of the cordless screwdriver (10).
    Type: Application
    Filed: July 21, 2004
    Publication date: October 5, 2006
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar
  • Publication number: 20060213333
    Abstract: A battery-operated screwdriver (10) with a housing (12, 18) with a grip (14), in particular with a fixedly built-in battery (40), and with charging contact tongues (37) for charging the battery (40), is designed as especially compact and lightweight because instead of a boxlike, standard ON/OFF switch, counterpart contacts (34) fixed to the tool are provided, to which a contact plate (32) that is movable by means of an ON/OFF trigger (26) and in the process is coupleable to the counterpart contacts (34) and upon their release is easily releasable, is assigned.
    Type: Application
    Filed: July 24, 2004
    Publication date: September 28, 2006
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar
  • Publication number: 20060192527
    Abstract: A cordless screwdriver having a housing (12, 18), having a handle (14), in particular one that is angled in pistol fashion, having a preferably permanently installed rechargeable battery (40), having charging contact tabs (37) for charging the rechargeable battery (40), and having an output spindle (20) is always ready for use and can be picked up quickly because it has a lithium-ion (Li-ion) cell as its rechargeable battery (40) and can be placed onto a charging cradle (22) for an unlimited amount of time, in particular during pauses between uses; the charging mode is automatically initiated and in it, the cordless screwdriver (40), with regard to its output spindle (20), is positioned on the charging cradle (22) so that it is inclined, in particular by approximately 30-45°, in relation to the perpendicular and the end of the output spindle (20) points downward.
    Type: Application
    Filed: July 24, 2004
    Publication date: August 31, 2006
    Inventors: Sven Kageler, Ginn Yuh Gan, Abdul Aziz Zulfikar