Patents by Inventor Julian Keller

Julian Keller 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: 10160109
    Abstract: The invention relates to a driving device, comprising a hand-held housing having an energy transmission element accommodated therein for transmitting energy to a fastening element to be driven in, an exchangeable propellant charge and a combustion chamber arranged between the propellant charge and the energy transmission element, said combustion chamber extending about a central axis, wherein the combustion chamber is subdivided by means of a dividing member having a number of interruptions into a first subchamber adjoining the propellant charge and at least one second subchamber adjoining the energy transmission element, wherein an ejection region, enclosing a central axis, for the propellant charge is provided in the first subchamber, said ejection region extending between the propellant charge and a central region of the dividing member, wherein the ejection region is bounded at the central region of the dividing member by a closed surface of the dividing member.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: December 25, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventors: Peter Goepfert, Peter Roth, Orestis Voulkidis, Julian Keller, Matthias Blessing
  • Publication number: 20170106515
    Abstract: The invention relates to a hand-held or semi-stationary setting device for driving fastening elements into a substrate with the aid of a power piston, said device comprising an attachment device at one discharge end. In order to simplify the operation of a hand-held or semi-stationary setting device, waste gas leaving a combustion chamber is used during a setting operation to pre-stress the attachment device against the substrate.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 20, 2017
    Applicant: Hilti Aktiengesellschaft
    Inventors: Markus Sprenger, Peter Bruggmueller, Julian Keller
  • Publication number: 20170095918
    Abstract: The invention relates to a hand-held or semi-stationary setting device for driving fastening elements into a substrate with the aid of a working piston, said device comprising a housing with an attachment device at one discharge end. In order to simplify the operation of a hand-held or semi-stationary setting device, the working piston is coupled to the attachment device such that when driving a fastening element into the substrate, energy of the working piston is absorbed and is transferred to the attachment device, in order to press the attachment device against the substrate.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 6, 2017
    Inventors: Dionys Schalbetter, Julian Keller, Markus Sprenger
  • Publication number: 20160303725
    Abstract: The invention relates to a driving device, comprising a hand-held housing having an energy transmission element accommodated therein for transmitting energy to a fastening element to be driven in, an exchangeable propellant charge and a combustion chamber arranged between the propellant charge and the energy transmission element, said combustion chamber extending about a central axis, wherein the combustion chamber is subdivided by means of a dividing member having a number of interruptions into a first subchamber adjoining the propellant charge and at least one second subchamber adjoining the energy transmission element, wherein an ejection region, enclosing a central axis, for the propellant charge is provided in the first subchamber, said ejection region extending between the propellant charge and a central region of the dividing member, wherein the ejection region is bounded at the central region of the dividing member by a closed surface of the dividing member.
    Type: Application
    Filed: November 25, 2014
    Publication date: October 20, 2016
    Inventors: Peter Goepfert, Peter Roth, Orestis Voulkidis, Julian Keller, Matthias Blessing