Patents by Inventor Jens Blum

Jens Blum 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: 8113520
    Abstract: An adapter (9) for a motor-driven machine tool with a tool to be rotatably driven has positive-fit counterpart pieces (10) on one face (16) which are adapted to positive-fit elements (3) of the tool shaft (1). Multiple axially protruding mandrels (11) are arranged along the circumference on the opposite face (13).
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: February 14, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Adolf Zaiser, Jens Blum, Marco Braun, Heiko Roehm, Daniel Grolimund, Katharina Holzer
  • Patent number: 8096856
    Abstract: A motor-driven machine tool (1) with a tool (7) that can be rotatably driven comprises a drive shaft (5) and a driven shaft (6) on which the tool (7) is received, the rotational movement of the drive shaft (5) being transmissible onto the driven shaft (6) via a coupling device (8). The drive shaft and the driven shaft are arranged in parallel, the driven shaft (6) extending at least partially at the level of and parallel to the drive unit.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 17, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Adolf Zaiser, Jens Blum, Heiko Roehm
  • Patent number: 8007212
    Abstract: A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive extends, and a device for adjusting the milling depth, which is located in a tower of the housing, the device extending essentially in the direction of a vertical axis of the router and including an adjusting knob. It is provided that the device extends, at the maximum, to a plane formed by a top side of the housing.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 30, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20110147030
    Abstract: A handheld machine tool, in particular a battery-driven handheld machine tool, having a gear unit and a cooling air unit. The cooling air unit is provided to route a flow of cooling air for cooling the gear unit past at least one gear element of the gear unit.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Inventors: Jens BLUM, Dietmar Saur, Tobias Herr
  • Publication number: 20110147027
    Abstract: The invention is based on a hand-held power tool device equipped with a locking device. The locking device is provided for locking an output device and has at least one locking element for supporting at least one radial clamping force. According to a proposed embodiment, the locking element is provided to fasten and/or axially secure at least one component.
    Type: Application
    Filed: November 22, 2010
    Publication date: June 23, 2011
    Inventors: Jens BLUM, Heiko Roehm, Tobias Herr
  • Publication number: 20110147021
    Abstract: The invention is based on a handheld power tool, in particular a cordless handheld power tool, having a gear unit and having a switch device for switching the gear unit. The switch device is provided with at least one user-control switch element, and at least one retaining element that is provided for acting on the user-control switch element in at least one position of the user-control switch element, with a force in the direction of at least one switch position, or for keeping the user-control switch element in at least one switch position. According to the invention, the retaining element is secured to a gear element of the gear unit.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 23, 2011
    Inventors: Thorsten Schaal, Ralf Windsheimer, Jens Blum, Heiko Roehm, Tobias Herr
  • Patent number: 7950882
    Abstract: A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive motor extends and the housing is displaceably accommodated on guide columns for adjusting the milling depth, a device for adjusting the milling depth, which includes a depth adjusting element that is displaceable in the direction of a vertical axis of the router using an adjusting element and that interacts with a stop element, and a device for locking the depth adjusting element. The device for locking the depth adjusting element is integrated in the device for adjusting the milling depth.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 31, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20100052269
    Abstract: An adapter (9) for a motor-driven machine tool with a tool to be rotatably driven has positive-fit counterpart pieces (10) on one face (16) which are adapted to positive-fit elements (3) of the tool shaft (1). Multiple axially protruding mandrels (11) are arranged along the circumference on the opposite face (13).
    Type: Application
    Filed: April 2, 2008
    Publication date: March 4, 2010
    Inventors: Adolf Zaiser, Jens Blum, Marco Braun, Heiko Roehm, Daniel Grolimund, Katharina Holzer
  • Publication number: 20100003906
    Abstract: A motor-driven machine tool (1) with a tool (7) that can be rotatably driven comprises a drive shaft (5) and a driven shaft (6) on which the tool (7) is received, the rotational movement of the drive shaft (5) being transmissible onto the driven shaft (6) via a coupling device (8). The drive shaft and the driven shaft are arranged in parallel, the driven shaft (6) extending at least partially at the level of and parallel to the drive unit.
    Type: Application
    Filed: February 19, 2008
    Publication date: January 7, 2010
    Inventors: Adolf Zaiser, Jens Blum, Heiko Roehm
  • Publication number: 20090318065
    Abstract: The invention relates to a motor-driven machine tool having a rotationally drivable tool, comprising a tool shaft, on the face of which a fastening device is provided for receiving and fastening the tool. The fastening device is detachably received on the tool shaft. An auxiliary tool for loosening the fastening device has a pull-off unit for loosening the mounting device, the unit engaging the fastening device on the tool shaft from behind, and a support part on the pull-off unit, the part supporting the pull-off unit in the operating mode using a supporting and loosening force on the machine tool.
    Type: Application
    Filed: February 27, 2008
    Publication date: December 24, 2009
    Inventors: Adolf Zaiser, Jens Blum, Heiko Roehm
  • Publication number: 20090308213
    Abstract: A motor-driven machine tool with a tool that can be rotatably driven comprises a drive shaft and a tool shaft on which the tool is received, the rotational movement of the drive shaft being transmissible onto the tool shaft via a coupling device. The drive shaft is rotatably received in pivot bearings in the housing of the machine tool, the coupling device acting upon the drive shaft in the portion between the two pivot bearings.
    Type: Application
    Filed: February 20, 2008
    Publication date: December 17, 2009
    Inventors: Adolf Zaiser, Jens Blum, Heiko Roehm
  • Publication number: 20080149221
    Abstract: A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive motor extends and the housing is displaceably accommodated on guide columns for adjusting the milling depth, a device for adjusting the milling depth, which includes a depth adjusting element that is displaceable in the direction of a vertical axis of the router using an adjusting element and that interacts with a stop element, and a device for locking the depth adjusting element. The device for locking the depth adjusting element is integrated in the device for adjusting the milling depth.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080152449
    Abstract: A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive extends, and a device for adjusting the milling depth, which is located in a tower of the housing, the device extending essentially in the direction of a vertical axis of the router and including an adjusting knob. It is provided that the device extends, at the maximum, to a plane formed by a top side of the housing.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080152450
    Abstract: A router has a housing, which is displaceably accommodated between a starting position and an end position for adjustment relative to a base plate, and a device for displaying the position of the housing.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080149223
    Abstract: A router has a motor housing that includes an upper piece, and the upper piece of the motor housing includes at least two shells capable of being joined together, the parting plane of which extends essentially in the direction of a vertical axis of the router.
    Type: Application
    Filed: October 17, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20080152448
    Abstract: A router operatable by an operator has a motor housing including at least one handle, a drive motor, a milling tool connected with the drive motor, a tool fitting provided for the milling tool and extending from an underside of the housing, a cooling device including an intake device for drawing cooling air in through intake openings in the motor housing, a cooling air guide for directing cooling air through the motor housing and, and an exhaust device for exhausting cooling air out of the motor housing, arranged so that the cooling air guide leads into the exhaust device and configured such that when the router is used as intended, the cooling air is only exhausted in at least one region of the router pointing away from the operator.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Inventors: Adolf Zaiser, Heiko Roehm, Jens Blum
  • Publication number: 20060162171
    Abstract: In a base plate (1) for a power tool (13), in particular for hand-guided circular saws, sabre saws, wall chasers, and routers, comprised of a metal sheet, having reinforcing elements that protrude out from the plane of the metal sheet, at least one of which is embodied in the form of a lateral stop surface (12), and having attaching elements (14) that protrude out from the plane of the metal sheet for fastening the base plate (1) to the miter angle (23), a more favorable manufacture with a low weight and higher rigidity with simultaneously lower risk of breakage is achieved in that the metal sheet is comprised of light metal and the entire base plate (1) is embodied in one piece. According to the present invention, a base plate (1) of this kind is manufactured by means of a stamping and bending process.
    Type: Application
    Filed: July 14, 2004
    Publication date: July 27, 2006
    Inventors: Wolfgang Fuchs, Heiko Roehm, Juergen Gairing, Jens Blum
  • Publication number: 20060033290
    Abstract: A hand power tool has a housing having at least two housing parts, and a sealing element providing mounting of the housing parts on one another fluid-tightly, wherein the housing parts have short sides with which the housing parts abut against one another with interposition a sealing element, and the sealing element is fixed on one of the housing parts.
    Type: Application
    Filed: July 25, 2005
    Publication date: February 16, 2006
    Inventors: Wolfgang Fuchs, Heiko Roehm, Juergen Gairing, Jens Blum