Patents by Inventor Gerhard Ummenhofer

Gerhard Ummenhofer 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: 9920496
    Abstract: Piste grooming vehicle and clearing blade for a piste grooming vehicle. The piste grooming vehicle has a clearing blade arranged at the front and includes a middle part and two side parts swivellably movable relative to the middle part, a setting arrangement for adjusting the middle part and/or the side parts and at least one manually operable actuating element arranged inside a cab for operating the setting arrangement. An electronic control unit is connected between the actuating element and the setting arrangement and operates the setting arrangement with a timed sequence of control commands for achieving at least one control function for the side parts and/or the middle part from an initial position to an end position preset by the control function.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: March 20, 2018
    Assignee: KAESSBOHRER GELAENDEFAHRZEUG AG
    Inventors: Gerhard Ummenhofer, Dieter Hann, Sven Holzapfel
  • Publication number: 20160312421
    Abstract: Piste grooming vehicle and clearing blade for a piste grooming vehicle. The piste grooming vehicle has a clearing blade arranged at the front and includes a middle part and two side parts swivellably movable relative to the middle part, a setting arrangement for adjusting the middle part and/or the side parts and at least one manually operable actuating element arranged inside a cab for operating the setting arrangement. An electronic control unit is connected between the actuating element and the setting arrangement and operates the setting arrangement with a timed sequence of control commands for achieving at least one control function for the side parts and/or the middle part from an initial position to an end position preset by the control function.
    Type: Application
    Filed: December 5, 2014
    Publication date: October 27, 2016
    Inventors: Gerhard UMMENHOFER, Dieter HANN, Sven HOLZAPFEL
  • Patent number: 7302799
    Abstract: The invention proposes a drive system for a vehicle, in particular for a tracked vehicle, having a drive machine and at least one load, which is mechanically coupled to an output drive of the drive machine, at least one control means being associated with the at least one load and reducing a power consumption of the at least one load in a starting phase of the drive machine temporarily compared with a power consumption in an operating state of the load whilst maintaining the mechanical coupling. Such a drive system has an improved starting capability compared with known systems since the reduction in the power consumption of the load in the starting phase of the drive machine reduces the risk of the drive machine stalling. The drive system according to the invention is considered to be particularly advantageous in the case of hydraulic loads and generators.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 4, 2007
    Assignee: Kaessbohrer Gelaendefahrzeug AG
    Inventor: Gerhard Ummenhofer
  • Publication number: 20060117744
    Abstract: The invention proposes a drive system for a vehicle (50), in particular for a tracked vehicle (50), having a drive machine (10; 80) and at least one load (36; 66; 90), which is mechanically coupled to an output drive (12; 82) of the drive machine (10; 80), at least one control means (38; 70) being associated with the at least one load (36; 66, 90) and reducing a power consumption of the at least one load (36; 66, 90) in a starting phase of the drive machine (10; 80) temporarily compared with a power consumption in an operating state of the load (10; 80) whilst maintaining the mechanical coupling. Such a drive system has an improved starting capability compared with known systems since the reduction in the power consumption of the load (36; 66; 90) in the starting phase of the drive machine (10; 80) reduces the risk of the drive machine (10; 80) stalling. The drive system according to the invention is considered to be particularly advantageous in the case of hydraulic loads (36; 66) and generators (90).
    Type: Application
    Filed: December 2, 2005
    Publication date: June 8, 2006
    Inventor: Gerhard Ummenhofer
  • Patent number: 5984277
    Abstract: The present invention relates to a method of operating a winch, in which a rope which is wound onto a driven reel is supplied to at least one capstan head and wound around said capstan head, with a capstan drive rotating the capstan head and producing a rope advance due to the rope friction existing between rope and capstan head. Moreover, the present invention relates to a corresponding device. As an improvement of the method and the device, the invention suggests a reel drive which is adjusted separately next to the capstan drive.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: November 16, 1999
    Assignee: Kaessbohrer Gelaendefahrzeug GmbH
    Inventors: Helmut Kanzler, Alfons Rock, Gerhard Ummenhofer