Patents by Inventor MARKUS HOFF

MARKUS HOFF 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).

  • Balancing pockets
    Patent number: 9909423
    Abstract: The invention relates to a drum rotor wheel for a fan having bulges to accommodate balancing weights. A drum rotor wheel according to the invention has several blades that are curved forward. The blades have a leading edge and a trailing edge. A top disc and a bottom disc are provided on the drum rotor wheel. At least one blade of the drum rotor wheel has a bulge on its leading edge. This bulge minimizes the area of flow separation, as a result of which the magnitude of the flow separation is likewise minimized. In other words, due to the bulge, the efficiency of the drum rotor wheel is increased.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: March 6, 2018
    Assignee: EMB-PAPST MULFINGEN GMBH & CO., KG
    Inventors: Markus Hoff, Katrin Bohl, Reinhard Strohmeier
  • BALANCING POCKETS
    Publication number: 20150292331
    Abstract: The invention relates to a drum rotor wheel for a fan having bulges to accommodate balancing weights. A drum rotor wheel according to the invention has several blades that are curved forward. The blades have a leading edge and a trailing edge. A top disc and a bottom disc are provided on the drum rotor wheel. At least one blade of the drum rotor wheel has a bulge on its leading edge. This bulge minimizes the area of flow separation, as a result of which the magnitude of the flow separation is likewise minimized. In other words, due to the bulge, the efficiency of the drum rotor wheel is increased.
    Type: Application
    Filed: March 9, 2015
    Publication date: October 15, 2015
    Applicant: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: MARKUS HOFF, KATRIN BOHL, REINHARD STROHMEIER
  • Fan drum rotor
    Patent number: D771235
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 8, 2016
    Assignee: EBM-PAPST MULFINGEN GMBH & CO. KG
    Inventors: Markus Hoff, Katrin Bohl, Reinhard Strohmeier