Patents by Inventor Eric S. Engelmann

Eric S. Engelmann 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).

  • Vibratory compactor
    Patent number: 8393825
    Abstract: A vibratory compactor machine includes a machine frame and a roller drum rotatably coupled to the frame and rotatable about a drum axis oriented generally traverse to the direction of travel of the machine. A vibration assembly is disposed inside the roller drum. The vibration assembly includes a first eccentric member and a second eccentric member rotatably disposed in the roller drum and rotatable about a respective first and second eccentric axes orientated perpendicularly to the drum axis. The roller drum rotates about the drum axis independently of the vibration assembly and the first and second eccentric members.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 12, 2013
    Assignee: Caterpillar Inc.
    Inventors: John L. Marsolek, Eric S. Engelmann
  • VIBRATORY COMPACTOR
    Publication number: 20120114416
    Abstract: A vibratory compactor machine includes a machine frame and a roller drum rotatably coupled to the frame and rotatable about a drum axis oriented generally traverse to the direction of travel of the machine. A vibration assembly is disposed inside the roller drum. The vibration assembly includes a first eccentric member and a second eccentric member rotatably disposed in the roller drum and rotatable about a respective first and second eccentric axes orientated perpendicularly to the drum axis. The roller drum rotates about the drum axis independently of the vibration assembly and the first and second eccentric members.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 10, 2012
    Applicant: CATERPILLAR INC.
    Inventors: John L. Marsolek, Eric S. Engelmann