Patents by Inventor Gerhard Ehmig

Gerhard Ehmig 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: 20140008409
    Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 9, 2014
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Patent number: 8479631
    Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: July 9, 2013
    Assignee: Hilti Aktiengesellschaft
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Publication number: 20080156843
    Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.
    Type: Application
    Filed: December 29, 2007
    Publication date: July 3, 2008
    Applicant: HILTI AKTIENGESELLSCHAFT
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Patent number: 7086574
    Abstract: An explosion-operated power tool including a housing (1) having a cylindrical cavity (5) and a piston chamber (2) for receiving a drive piston (3) and communicating with the cavity (5), a breech bottom (8) located opposite the cavity (5) and fixedly secured at a predetermined distance from the housing (1), and a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable axially away from the breech bottom (8) and toward the breech bottom (8) for enabling, respectively, a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and for securing the catridge between the breech bottom (8) and the sealing sleeve (12).
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: August 8, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tilo Dittrich, Gerhard Ehmig, Thomas Sperrfechter
  • Patent number: 7028877
    Abstract: A combustion-operated working tool having a housing body (1), which has a cylindrical recess (5) and a piston chamber (2) connecting therewith for receiving a piston (3); an impact plate (8), which is arranged opposite to and at a distance to the cylindrical recess (5) and which can be displaced towards and away from the housing body (1), and a packing sleeve (12) arranged inside and elastically mounted, projecting out of the cylindrical recess (5).
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: April 18, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Thomas Sperrfechter, Jens Neumann, Norbert Heeb, Gerhard Ehmig, Tilo Dittrich
  • Patent number: 7014086
    Abstract: An ignition device for igniting a foil cartridge (10) in an explosion-operated power tool includes an electrical insulator (24) arranged in the support (8), a pin-shaped electrode (25) located in the electrical insulator and having a tip (30) that communicates with surrounding environment via a channel (32) formed in the electrical insulator (24) and extending in a longitudinal direction of the pin-shaped electrode (25) and an electrically conducting annular electrode (27) supported on the support (8) in a region of the channel (32) and tightly surrounding the insulator (24), leaving the channel (32) free.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: March 21, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tilo Dittrich, Gerhard Ehmig
  • Patent number: 6983679
    Abstract: A propellant magazine for a propellant-operated setting tool and including a pocket foil (1, 11, 21) having a plurality of recessed, spaced from each other, pockets (2, 12, 22, 42) for receiving each a propellant (3, 13, 23), a cover foil (5, 15, 25) unreleasably connected with the pocket foil (1, 11, 21) for closing the pockets (2, 12, 22), and an electrically conducting strip (7, 17, 27, 37) associated with each pocket (2, 12, 22, 42) and having at least one contact point (8, 9, 18, 19, 28, 29, 31, 32, 38, 39).
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: January 10, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tilo Dittrich, Mario Grazioli, Thomas Sperrfechter, Mario Scalet, Gerhard Ehmig
  • Patent number: 6938811
    Abstract: A setting tool for driving in fastening elements includes a drive piston (13) displaceable in a piston guide (11) between its initial (32) and setting positions, and device for returning the drive piston (13) in its initial position upon completion of a setting process and having an electromotive drive (30) and a transmission (20) for transmitting a motive actuating torque to the drive piston (13).
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: September 6, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Publication number: 20050109813
    Abstract: A setting tool for driving in fastening elements includes a drive piston (13) displaceable in a piston guide (11) between its initial (32) and setting positions, and device for returning the drive piston (13) in its initial position upon completion of a setting process and having an electromotive drive (30) and a transmission (20) for transmitting a motive actuating torque to the drive piston (13).
    Type: Application
    Filed: June 2, 2004
    Publication date: May 26, 2005
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Publication number: 20050109812
    Abstract: A combustion power-operated setting tool, includes a setting mechanism (12), and a safety device (30) for preventing a setting process upon an operational temperature of the setting mechanism (12) exceeding a predetermined threshold temperature, with the safety device (30) including a temperature-sensitive servo element (31) having a first position (32) when the operational temperature of the setting mechanism (12) is below the predetermined threshold temperature and in which a setting process with the setting tool (10) can be carried out, and a second position (33) when the operational temperature of the setting mechanism exceeds the predetermined threshold temperature and in which the setting process cannot be carried out.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 26, 2005
    Inventors: Gerhard Ehmig, Tilo Dittrich, Gebhard Gantner
  • Publication number: 20040244626
    Abstract: A propellant charge batch for an explosion-operated setting tool includes a socket member (10) in an inner space which there are provided a first chamber (11) filled with a nitrocellulose propellant charge (13), and a second chamber (12) filled with an ammoniumnitrate powder (14), with at least the second chamber (12) being closed medium tightly; and at least one ignition element (15) for igniting the propellant charge.
    Type: Application
    Filed: May 21, 2004
    Publication date: December 9, 2004
    Inventor: Gerhard Ehmig
  • Publication number: 20040231503
    Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.
    Type: Application
    Filed: April 22, 2004
    Publication date: November 25, 2004
    Inventors: Gerhard Ehmig, Tilo Dittrich
  • Publication number: 20040226975
    Abstract: A combustion-operated working tool having a housing body (1), which has a cylindrical recess (5) and a piston chamber (2) connecting therewith for receiving a piston (3); an impact plate (8), which is arranged opposite to and at a distance to the cylindrical recess (5) and which can be displaced towards and away from the housing body (1), and a packing sleeve (12) arranged inside and elastically mounted, projecting out of the cylindrical recess (5).
    Type: Application
    Filed: December 18, 2003
    Publication date: November 18, 2004
    Inventors: Thomas Sperrfechter, Jens Neumann, Norbert Heeb, Gerhard Ehmig, Tilo Dittrich
  • Publication number: 20040211808
    Abstract: A hand-held power tool includes a housing (11) in which an energy-driven operational mechanism (12, 13, 14, 15) is located, and at least one latent heat accumulator (20) arranged on the power tool.
    Type: Application
    Filed: January 21, 2004
    Publication date: October 28, 2004
    Inventors: Ulrich Rosenbaum, Walter Odoni, Gerhard Ehmig
  • Publication number: 20040182906
    Abstract: An ignition device for igniting a foil cartridge (10) in an explosion-operated power tool includes an electrical insulator (24) arranged in the support (8), a pin-shaped electrode (25) located in the electrical insulator and having a tip (30) that communicates with surrounding environment via a channel (32) formed in the electrical insulator (24) and extending in a longitudinal direction of the pin-shaped electrode (25) and an electrically conducting annular electrode (27) supported on the support (8) in a region of the channel (32) and tightly surrounding the insulator (24), leaving the channel (32) free.
    Type: Application
    Filed: December 16, 2003
    Publication date: September 23, 2004
    Inventors: Tilo Dittrich, Gerhard Ehmig
  • Publication number: 20040178247
    Abstract: An explosion-operated power tool including a housing (1) having a cylindrical cavity (5) and a piston chamber (2) for receiving a drive piston (3) and communicating with the cavity (5), a breech bottom (8) located opposite the cavity (5) and fixedly secured at a predetermined distance from the housing (1), and a sealing sleeve (12) located in the cavity (5) of the housing (1) and displaceable axially away from the breech bottom (8) and toward the breech bottom (8) for enabling, respectively, a sidewise feeding of a catridge (10) for positioning the catridge between the breech bottom and the sealing sleeve (12) and for securing the catridge between the breech bottom (8) and the sealing sleeve (12).
    Type: Application
    Filed: December 16, 2003
    Publication date: September 16, 2004
    Inventors: Tilo Dittrich, Gerhard Ehmig, Thomas Sperrfechter
  • Patent number: 6712255
    Abstract: A propellant charge-operating setting tool for driving fastening elements and including a housing (11), a setting mechanism (12) located in the housing (11) and actuated in response to ignition of a propellant charge (24) for driving in a fastening element, and a device (30, 40, 50, 60, 70) for cutting a used portion of a propellant charge-carrying magazine strip (22).
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: March 30, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Tilo Dittrich, Gerhard Ehmig
  • Publication number: 20030218041
    Abstract: The present invention relates to a cartridge(10), in particular for a setting tool, comprising a sleeve member (11) and a sleeve cover (13), which form the jacket surface (13), and a bottom side (16) and a face side (15). Intended break zones (20) are arranged on the cartridge (10) surface to be opened, wherein the intended break zones are opened by the explosive pressure of a propellant charge (12) situated inside the cartridge (10). For the improvement of such cartridges (10), the intended break zone (20) is formed by weakened zones (21) extending from a center (22, 22′) and therefrom forming the shape of a star. The invention also relates to a device for firing a propellant charge situated within a cartridge, in particular for setting tools.
    Type: Application
    Filed: December 13, 2002
    Publication date: November 27, 2003
    Inventors: Tilo Dittrich, Gerhard Ehmig, Norbert Heeb, Jens Neumann, Thomas Sperrfechter
  • Publication number: 20030155396
    Abstract: A propellant charge-operating setting tool for driving fastening elements and including a housing (11), a setting mechanism (12) located in the housing (11) and actuated in response to ignition of a propellant charge (24) for driving in a fastening element, and a device (30, 40, 50, 60, 70) for cutting a used portion of a propellant charge-carrying magazine strip (22).
    Type: Application
    Filed: February 12, 2003
    Publication date: August 21, 2003
    Inventors: Tilo Dittrich, Gerhard Ehmig
  • Patent number: 6536647
    Abstract: A holder for a drive piston (8) of a setting tool, and including a return element (19) having a first end (21) that applies pressure to the drive piston (8), and a second end (22) spaced from the first end (21), and axial and radial stop elements (16-18) fixedly securable in the setting tool and against which the second end (22) of the return element (21) is displaceable and elastically deformed upon displacement of the drive piston (8) in the setting direction (20).
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: March 25, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Franz BĂĽchel, Gerhard Ehmig, Thomas Sperrfechter, Markus Frommelt