Patents by Inventor Erich Greisberger

Erich Greisberger 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: 7963054
    Abstract: A coupling apparatus having a device for automatic connection of power lines, in particular of hydraulic lines, for the attachment of working tools to a tool mount of a excavator boom by means of a quick-action coupling, wherein, in order to connect the tool mount to the working tool, the quick-action coupling has a hook connection and a blocking unit with a movable bolt element which is operated by an actuating unit. Supply connecting pieces are fixed to the tool mount, and the corresponding power take-off connecting pieces of the working tool are fixed on a mount, which is mounted on the working tool such that it can move between a moved-forward position and a drawn-back position, wherein the mount has a driver piece for engagement with an operating element which is coupled to the movable bolt element.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: June 21, 2011
    Assignee: Wimmer Hartstahl GmbH & Co. KG
    Inventors: Alois Wimmer, Erich Greisberger
  • Publication number: 20090255151
    Abstract: A coupling apparatus having a device for automatic connection of power lines, in particular of hydraulic lines, for the attachment of working tools to a tool mount of a excavator boom by means of a quick-action coupling, wherein, in order to connect the tool mount to the working tool, the quick-action coupling has a hook connection and a blocking unit with a movable bolt element which is operated by an actuating unit. Supply connecting pieces are fixed to the tool mount, and the corresponding power take-off connecting pieces of the working tool are fixed on a mount, which is mounted on the working tool such that it can move between a moved-forward position and a drawn-back position, wherein the mount has a driver piece for engagement with an operating element which is coupled to the movable bolt element.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 15, 2009
    Applicant: WIMMER HARTSTAHL GMBH & CO. KG
    Inventors: Alois Wimmer, Erich Greisberger
  • Publication number: 20050208810
    Abstract: An arrangement for connecting energy lines, in particular pressure lines, such as, for example, hydraulic lines, of tools to be supplied with energy, in particular pressure-actuated tools to pressure supply lines, it being possible for the tools to be secured to the tool carrier in a fixed position in a locked manner, and at least one respective coupling part being provided on the tool and on the tool carrier, which coupling parts are located coaxially opposite one another in the mutually secured state, and of which coupling parts one coupling part engages in the opposite mating coupling part in the coupled state.
    Type: Application
    Filed: April 7, 2005
    Publication date: September 22, 2005
    Inventors: Alois Wimmer, Erich Greisberger