Patents by Inventor Michael Strässer

Michael Strässer 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).

  • Method and device for transporting overburden away during tunnelling
    Patent number: 9518465
    Abstract: A method and device for transporting overburden away during tunneling includes a seal that separates a first portion and a second portion of a transporting screw arrangement. As a result, in open tunneling or in earth-pressure-assisted tunneling, when the seal is closed, overburden can be transported out of a first opening, arranged ahead of the seal in the direction of removal and, in fluid-assisted tunneling, when the first opening is closed and the seal is open, the overburden can be transported into the second portion.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: December 13, 2016
    Assignee: HERRENKNECHT AKTIENGESELLSCHAFT
    Inventors: Werner Burger, Michael Strässer
  • METHOD AND DEVICE FOR TRANSPORTING OVERBURDEN AWAY DURING TUNNELLING
    Publication number: 20150233243
    Abstract: A method and device for transporting overburden away during tunneling includes a seal that separates a first portion and a second portion of a transporting screw arrangement. As a result, in open tunneling or in earth-pressure-assisted tunneling, when the seal is closed, overburden can be transported out of a first opening, arranged ahead of the seal in the direction of removal and, in fluid-assisted tunneling, when the first opening is closed and the seal is open, the overburden can be transported into the second portion.
    Type: Application
    Filed: October 7, 2013
    Publication date: August 20, 2015
    Inventors: Werner Burger, Michael Strässer