Patents by Inventor Daniel Hirt

Daniel Hirt 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: 7671562
    Abstract: A battery pack for an electric appliance has a base body, a locking unit for locking the base body to the electric appliance, an actuating element for unlocking the base body, which element is intended to be actuated by a user in an actuating direction, and a removal direction in which it is possible to remove the base body after it has been unlocked from the electric appliance. The actuating direction has at least one component oriented counter to the removal direction.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 2, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Heiko Roehm, Daniel Hirt
  • Patent number: 7670171
    Abstract: A battery pack for an electric appliance has a base body, a locking device for locking the base body to the electric appliance, at least one contact element for producing an electrical contact with the electric appliance, and a contact holding unit for holding the contact element. The locking device and the contact holding unit are fastened to the base body by means of a shared fastening module.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: March 2, 2010
    Assignee: Robert Bosch GmbH
    Inventor: Daniel Hirt
  • Patent number: 7476125
    Abstract: A system for electrically coupling an electrical supply unit for cordless electrical devices, hand-held power tools in particular, with a charging device, with the electrical supply unit is located in a housing in which at least one rechargeable battery that can be recharged using the charging device is located, and the electrical supply unit and the charging device each have at least a first and a second contact element, wherein the first and second contact elements of the electrical supply unit interact with the first and second contact elements of the charging device such that the charging procedure takes place only when the electrical supply unit is in a defined end position in the charging device.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: January 13, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Raff, Marcin Rejman, Daniel Hirt, Josef Baumgartner
  • Publication number: 20080189904
    Abstract: A portable blower having a motor unit that includes a drive motor disposed in an engine housing. The blower has a blower unit that is provided with a blower housing that is separate from the engine housing. The blower unit includes an axial fan that is driven by the drive motor via a drive shaft. During operation the axial fan conveys operating air in the direction of the axis of rotation of the axial fan through a blower tube disposed downstream of the axial fan. An ergonomic operation and a good operating result can be achieved if the motor unit includes a guide tube on which is secured at least one handle. The engine housing is disposed at one end of the guide tube and the blower unit is disposed at the other end of the guide tube. The drive shaft extends through the guide tube. The length of the guide tube between the engine housing and the blower unit corresponds to at least half of the length of the blower tube.
    Type: Application
    Filed: August 9, 2007
    Publication date: August 14, 2008
    Inventors: Harald Schliemann, Manfred Rabis, Daniel Hirt
  • Publication number: 20080136125
    Abstract: An attachment for a power tool has a tool receptacle for receiving a tool bit, a locking unit which is detachably mountable on a housing of a power tool, an output shaft, which is connectable to a drive shaft of the power tool in a manner fixed against relative rotation, and a device for adjusting the torque.
    Type: Application
    Filed: November 27, 2007
    Publication date: June 12, 2008
    Inventors: Daniel Hirt, Juergen Gairing
  • Publication number: 20080089785
    Abstract: A blower unit for a portable blower, having a drive shaft that is rotatably driven by a drive motor. Disposed in the blower unit is an axial fan that is provided with at least one fan wheel driven by the drive shaft and at least guide wheel fixedly disposed in the housing. To achieve a simple construction and a simple manufacture, the housing has at least two housing sections and is divided approximately parallel to the axis of rotation of the drive shaft.
    Type: Application
    Filed: August 9, 2007
    Publication date: April 17, 2008
    Inventors: Harald Schliemann, Manfred Rabis, Daniel Hirt
  • Publication number: 20070243458
    Abstract: A battery pack for an electric appliance has a base body, a locking element that is movable relative to the base body, is provided for locking the base body to the electric appliance, and has a locked position, and a holding element, which is provided to maintain the locked position when the base body is in the locked state. The holding element is integrally joined to the locking element.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 18, 2007
    Inventors: Heiko Roehm, Daniel Hirt
  • Publication number: 20070236179
    Abstract: A handheld power tool has a handheld power tool base body, a battery pack that is detachable from the handheld power tool base body, and an inner cavity with a wall that constitutes a coupling region for the coupling of the battery pack to the handheld power tool base body. The wall has at least one shaped component that is oriented outward in relation to the inner cavity.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 11, 2007
    Inventors: Heiko Roehm, Daniel Hirt
  • Publication number: 20070238368
    Abstract: A battery pack for an electric appliance has a base body, a locking device for locking the base body to the electric appliance, at least one contact element for producing an electrical contact with the electric appliance, and a contact holding unit for holding the contact element. The locking device and the contact holding unit are fastened to the base body by means of a shared fastening module.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 11, 2007
    Inventor: Daniel Hirt
  • Publication number: 20070236176
    Abstract: A system is provided for mechanically coupling an electrical supply unit for cordless electrical devices with a charging device, the electrical supply unit includes a housing in which at least one battery that can be recharged by the charging device is located, an associated electrical supply unit, and an associated charging device. At least one guide element is located in the front region of the housing of the electrical supply unit, which engages, for mechanical coupling with the charging device, in a corresponding receiving device on the charging device; the combination of the at least one guide rail and the receiving device functions as a flexible coupling or a slide-in, rear-engagement seat.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 11, 2007
    Inventors: Thomas Raff, Marcin Rejman, Daniel Hirt
  • Publication number: 20070236178
    Abstract: A battery pack for an electric appliance has a base body, a locking unit for locking the base body to the electric appliance, an actuating element for unlocking the base body, which element is intended to be actuated by a user in an actuating direction, and a removal direction in which it is possible to remove the base body after it has been unlocked from the electric appliance. The actuating direction has at least one component oriented counter to the removal direction.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 11, 2007
    Inventors: Heiko Roehm, Daniel Hirt
  • Publication number: 20070237539
    Abstract: A system for electrically coupling an electrical supply unit for cordless electrical devices, hand-held power tools in particular, with a charging device, with the electrical supply unit is located in a housing in which at least one rechargeable battery that can be recharged using the charging device is located, and the electrical supply unit and the charging device each have at least a first and a second contact element, wherein the first and second contact elements of the electrical supply unit interact with the first and second contact elements of the charging device such that the charging procedure takes place only when the electrical supply unit is in a defined end position in the charging device.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 11, 2007
    Inventors: Thomas Raff, Marcin Rejman, Daniel Hirt, Josef Baumgartner
  • Publication number: 20070238333
    Abstract: In a battery pack for an electrical device has a base body, including a mounting shell and a cover shell, and that has an electrical module, the electrical module is secured in the base body by cooperation of the mounting shell and the cover shell.
    Type: Application
    Filed: March 19, 2007
    Publication date: October 11, 2007
    Inventors: Heiko Roehm, Daniel Hirt