Patents by Inventor Wolf Matthias

Wolf Matthias 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: 20100172392
    Abstract: A measurement arrangement for measuring a temperature of a rechargeable power supply device, such as a battery pack, for an electrical appliance. The power supply device has at least one measurement object, such as a battery. At least one thermosensor element, such as a PTC or NTC resistor, is provided on a ribbon cable and is positioned between the measurement object and an outer sheath.
    Type: Application
    Filed: May 5, 2008
    Publication date: July 8, 2010
    Inventors: Steffen Katzenberger, Wolf Matthias
  • Publication number: 20100129706
    Abstract: In the case of a device with at least one accumulator cell having at least one electrode assembly which is disposed in an elastic sheath, the accumulator cell is equipped with an apparatus having at least two retaining elements, which are connected to each other. The accumulator cell is then held at associated hold points by the retaining elements.
    Type: Application
    Filed: November 20, 2009
    Publication date: May 27, 2010
    Applicant: Robert Bosch GMBH
    Inventor: Wolf Matthias
  • Publication number: 20100081044
    Abstract: A battery pack for locking with a power tool with at least one movable locking bar has at least a front recess and a rear recess located after the front recess in the direction of a relative motion between the battery pack and the power tool, the recesses are configured as detent grooves, and the recesses are differently shaped and are offset transversely to the direction of motion; and a power tool locks with the battery pack.
    Type: Application
    Filed: December 7, 2009
    Publication date: April 1, 2010
    Inventors: Marcin Rejman, Wolf Matthias, Urs Roth
  • Patent number: 7682726
    Abstract: The invention relates to a device for locking electrical devices (2) with battery packs (4) for power supply, in which the electrical devices (2) have one movable locking bar (14; 36; 38; 40; 42) and the battery packs (4) have at least two recesses (24, 26), and upon locking, the recesses (24, 26) are located one after the other in the direction of a relative motion between the electrical device (2) and the battery pack (4), and after locking, the locking bar (14; 36; 38; 40; 42) engages one of the recesses (24, 26).
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: March 23, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Marcin Rejman, Wolf Matthias, Urs Roth
  • Publication number: 20100068606
    Abstract: In the case of a safety device for an accumulator cell, which has an electrode assembly disposed in an elastic cell sheath and at least one electrical connector, a blocking element is provided which blocks at least a first electrical contact associated with the electrical connector with at least a second electrical contact in a releasable electrical connection, the blocking element being configured for the purpose of releasing the releasable electrical connection when the cell sheath expands as a result of a change in volume of the accumulator cell during operation. A separation of the second contact from the first contact is thereby made possible.
    Type: Application
    Filed: November 20, 2009
    Publication date: March 18, 2010
    Applicant: Robert Bosch GMBH
    Inventor: Wolf Matthias
  • Patent number: 7671563
    Abstract: An electrical device has an electrical device body, a rechargeable battery pack that can be removed from the electrical device body, and a fastening unit for attaching the rechargeable battery pack to the electrical device body. It is provided that the fastening unit is designed such that electrical contact between the electrical device body and the rechargeable battery pack is established during an attaching motion.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: March 2, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Glauning, Jan Breitenbach, Wolf Matthias, Marcin Rejman, Josef Baumgartner, Thorsten Seidel
  • Patent number: 7670714
    Abstract: A battery pack for an electrical device has a base body, a locking element for locking the base body to the electrical device, and an actuating element for actuating the locking element. The locking element has a retaining region, which is provided for retaining the actuating element at least in the unlocked state of the base body.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: March 2, 2010
    Assignee: Robert Bosch GmbH
    Inventor: Wolf Matthias
  • Patent number: 7648383
    Abstract: A device for locking a power tool and a rechargeable battery pack that is insertable in a guide of the power tool has a locking bar installable on a housing of the power tool and held in locking engagement with the rechargeable battery pack via spring force, a release mechanism that acts on the locking bar for manually releasing the locking bar from the locking engagement, the locking bar and the release mechanism forming a lever that is pivotally supportable in a rocker pivot on the housing, the locking bar being fixedly held via spring force and a recess formed at a top side of the rechargeable battery pack and is releasable by pivoting the lever from the locking engagement via a compression force applied to the release mechanism, which extends upwardly across a front base end of the housing.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: January 19, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Wolf Matthias, Urs Roth, Huynh Cuong, Jochen Krauter
  • Publication number: 20090286143
    Abstract: A battery pack according to the invention has a housing, at least one rechargeable battery cell, and at least one temperature sensor that is attachable in a thermally conductive fashion to the rechargeable cell. At least one clamping element is provided, which cooperates with the temperature sensor in such a way that it is possible to attach the temperature sensor to the rechargeable cell in a thermally conductive fashion.
    Type: Application
    Filed: August 19, 2008
    Publication date: November 19, 2009
    Inventors: Wolf Matthias, Josef Baumgartner, Jan Breitenbach
  • Patent number: 7597564
    Abstract: A toollessly makable and breakable electrical connection between a current source, in particular a removable energy storage device, and an electrical consumer, has at least one contact pair comprised of two contact elements, one of which is connected to the current source and one of which is connected to the consumer. In order to reduce the transition impedance in the contact pair and to reduce the current-induced heating of the contact pair, at least one contact element has a multitude of individual small-area contact points that are electrically connected in parallel. For example, the multitude of contact points is implemented in the form of fibers composed of an electrically conductive material, which are combined in bristle brush or paintbrush fashion to form a fiber brush.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 6, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Wolf Matthias, Marcin Rejman
  • Patent number: 7597993
    Abstract: A pronounced heat-diffusing action for a battery pack, which has a plurality of battery cells (2) located in a housing (1), is created by shaping the wall of the housing (1) surrounding the battery cells (2) such that this wall forms at least one duct (3, 4) for a heat-diffusing medium, which duct is closed off from the interior of the housing (1).
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: October 6, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Glauning, Stephan Keller, Marcin Rejman, Wolf Matthias
  • Publication number: 20090202895
    Abstract: A power supply module for interchangeable attachment to an electric tool has a module housing, which receives a battery and an introduction dome, formed integrally onto the module housing, for guiding the tool, on which dome there is an electrical interface with the electric power tool and at least one form-locking element for making a form lock with the tool housing is located.
    Type: Application
    Filed: April 20, 2009
    Publication date: August 13, 2009
    Inventors: Rainer Glauning, Marcin Rejman, Wolf Matthias
  • Patent number: 7552780
    Abstract: An electric power tool and a power supply module for interchangeable attachment to an electric power tool are disclosed. The electric power tool has a tool housing (12) with a guide sleeve (15) for interchangeably receiving the power supply module (11), which has an introduction opening (152) and an electrical interface. To achieve high resistance to vibration of the contacting at the module/tool interface, at least one form-locking element (21) for making a form lock with the power supply module (11) is located in the end region, remote from the introduction opening of the guide sleeve (15). The power supply module (11) has a module housing (13), which receives a battery and an introduction dome (14), formed integrally onto the module housing, for guiding the tool, on which dome there is an electrical interface with the electric power tool and at least one form-locking element for making a form lock with the tool housing (15) is located (FIG. 2).
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: June 30, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Glauning, Marcin Rejman, Wolf Matthias
  • Patent number: 7534065
    Abstract: A device for locking, an electrical device to an accessory part has a guide configured to guide the accessory part in a predetermined movement direction as it moves between a locking position in which it is locked the electrical device and a removal position in which it is removed from the electrical device, the guide having a break in at least one location between the locking position and removal position, and at the location a force acting on the accessory part moves the accessory part into a safety position in which the accessory part is prevented from moving further along the guide into the removal position.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: May 19, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Marcin Rejman, Wolf Matthias
  • Publication number: 20090017372
    Abstract: The invention relates to a rechargeable battery for handheld electromechanical tools, having a plurality of battery cells that are connected electrically to one another by means of flat electrical cell connectors, wherein in a region of the rechargeable battery in which two cell connectors overlap, an electrical insulator is fixed to a cell connector of an electrical cell bypass. The invention further relates to an electromechanical tool, in particular a cordless screwdriver, power drill, circular saw, jigsaw, power sander, or garden tool, having a rechargeable battery according to the invention.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 15, 2009
    Inventors: Marcin REJMAN, Wolf Matthias, Thorsten Seidel
  • Patent number: 7455544
    Abstract: The present invention relates to a device for locking a battery pack (6) in a guide (10) of a power tool (4); when the battery pack (6) is being slid into the guide (10), it is first able move into a front locked position in which it is locked in relation to the power tool (6), but there is no electrical contact between the power tool (4) and battery pack (6), and is then able to move further into a rear locked position in which it is locked in relation to the power tool (4) and an electrical contact is produced between the battery pack (6) and the power tool (4); it is possible to manually release the battery pack (6) for removal and to move it from the rear locked position, through the front locked position, and out of the guide (10).
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: November 25, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Glauning, Wolf Matthias
  • Publication number: 20080248376
    Abstract: The invention relates to a device for locking electric appliances (2) with battery packs (4) for power supply, whereby the electric appliances (2) comprise a displaceable bolt (14; 36; 38; 40; 42) and the battery packs (4) comprise at least two recesses (24, 26) and the recesses (24, 26) are arranged serially behind each other in the direction of a relative movement of the electric appliance (2) and battery pack (4) and, after locking, the bolt (14; 36; 38; 40; 42) engages in one of the recesses (24, 26).
    Type: Application
    Filed: July 5, 2005
    Publication date: October 9, 2008
    Inventors: Marcin Rejman, Wolf Matthias, Urs Roth
  • Patent number: 7413460
    Abstract: An electric hand-held power tool has a machine housing, an energy accumulator module detachably connected therewith and slidable into and out of a guide formed on the machine housing, and a locking device acting between a machine housing and an energy accumulator module and including locking elements, which are located on the machine housing and the energy accumulator module and are engaged with each other in a locked position and may be disengaged manually. To prevent the locking device from becoming released when one of the locking elements designed as a release button is accidentally actuated, the locking device includes a blocking element active in the locked position of the locking elements and blocking manual actuation, wherein the blocking element can be deactivated by manually sliding energy accumulator module in the guide against a return force.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: August 19, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Wolf Matthias, Jochen Krauter
  • Publication number: 20080150481
    Abstract: The invention relates to a device for locking a battery pack (6) in a guide (10) in an electric tool (4), whereby the battery pack (6), on insertion into the guide (10), may first be displaced into a front locking position, in which the same is locked to the electric tool (4), with no electrical contact between the electric tool (4) and the battery pack (6) and then further displaced into rear locking position, in which the same is locked to the electric tool (4) and an electrical contact between the electric tool (4) and the battery pack (6) is generated and the battery pack may be manually unlocked for removal and may be moved from the rear locking position out of the guide (10) via the front locking position. The electric tool (4) comprises a bolt (20), which remains locked to the battery pack (6) on a movement of the battery pack (6) between both locking positions and which may be displaced together with the battery pack (6) in relation to the electric tool (4).
    Type: Application
    Filed: August 4, 2005
    Publication date: June 26, 2008
    Inventors: Rainer Glauning, Wolf Matthias
  • Publication number: 20080102684
    Abstract: An electric hand-held power tool has a machine housing, an energy accumulator module detachably connected therewith and slidable into and out of a guide formed on the machine housing, and a locking device acting between a machine housing and an energy accumulator module and including locking elements, which are located on the machine housing and the energy accumulator module and are engaged with each other in a locked position and may be disengaged manually. To prevent the locking device from becoming released when one of the locking elements designed as a release button is accidentally actuated, the locking device includes a blocking element active in the locked position of the locking elements and blocking manual actuation, wherein the blocking element can be deactivated by manually sliding energy accumulator module in the guide against a return force.
    Type: Application
    Filed: October 17, 2007
    Publication date: May 1, 2008
    Inventors: Wolf Matthias, Jochen Krauter
  • Patent number: 5427316
    Abstract: A sucking straw has a substantially flat configuration and is provided with a plurality of adjoining beverage sucking channels. The straw fits the contour of the lips so that no air may go through when liquid is being sucked by the user. The amount of liquid being sucked is substantially greater than with conventional straws.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: June 27, 1995
    Inventor: Marcello Leone