Patents by Inventor Gebhard Schumann

Gebhard Schumann 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).

  • Filter
    Patent number: 9221003
    Abstract: A filter bag is longitudinally formed with at least a portion of the filter bag formed in a frusto-conical shape. The filter bag has a plurality of radially extending members that form a propeller shaped cross-section. A lower, frusto conically shaped lower portion balloon or billows during a reverse air cycle enhances dust fall from the exterior for cleaning. A manifold having multiple openings is also disclosed.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: December 29, 2015
    Inventors: Klaus Schumann, Gebhard Schumann
  • FILTER
    Publication number: 20120324842
    Abstract: A filter bag is longitudinally formed with at least a portion of the filter bag formed in a frusto-conical shape. The filter bag has a plurality of radially extending members that form a propeller shaped cross-section. A lower, frusto conically shaped lower portion balloon or billows during a reverse air cycle enhances dust fall from the exterior for cleaning. A manifold having multiple openings is also disclosed.
    Type: Application
    Filed: May 18, 2012
    Publication date: December 27, 2012
    Inventors: Klaus SCHUMANN, Gebhard SCHUMANN
  • Filter
    Patent number: 8187352
    Abstract: A filter bag is longitudinally formed in a frusto-conical shape The filter bag has a plurality of radially extending members that form a propeller shaped cross-section, and a propeller-shaped molded bottom that enhances dust fall from the exterior. A frusto-conically-shaped inner cage facilitates the shape of the filter bag of the filter element.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: May 29, 2012
    Inventors: Klaus Schumann, Gebhard Schumann
  • FILTER
    Publication number: 20110067370
    Abstract: A filter element is longitudinally formed in a frusto-conical shape The filter element has a plurality of radially extending members that form a propeller shaped cross-section, and a propeller-shaped moulded bottom that enhances dust fall from the exterior. A frusto-conically-shaped inner cage facilitates the shape of the filter element.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Inventors: Klaus Schumann, Gebhard Schumann