Patents by Inventor Marcel Paffendorf

Marcel Paffendorf 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).

  • Ventilator
    Patent number: 8668435
    Abstract: A fan (100) has a fan housing (110). The latter has an air entrance opening (120) and an air exit opening (130). It further has a swivel joint arrangement (180) having at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) that is arranged on a joint carrier (188; 188?); at least one non-return flap (140, 150, 160, 170) that is journaled rotatably by means of the at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) and, in its closed position, at least partly closes off the air exit opening (130); and at least one elastic return member (142, 152, 162, 172) that is associated with the at least one non-return flap (140, 150, 160, 170) and urges it toward its closed position.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: March 11, 2014
    Assignee: EBM-PAPST St. Georgen GmbH & Co. KG
    Inventors: Norbert Weisser, Marcel Paffendorf, Wolfgang Laufer, Jürgen Herr, Stefan Mayer
  • Ventilator
    Publication number: 20110116909
    Abstract: A fan (100) has a fan housing (110). The latter has an air entrance opening (120) and an air exit opening (130). It further has a swivel joint arrangement (180) having at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) that is arranged on a joint carrier (188; 188?); at least one non-return flap (140, 150, 160, 170) that is journaled rotatably by means of the at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) and, in its closed position, at least partly closes off the air exit opening (130); and at least one elastic return member (142, 152, 162, 172) that is associated with the at least one non-return flap (140, 150, 160, 170) and urges it toward its closed position.
    Type: Application
    Filed: December 7, 2009
    Publication date: May 19, 2011
    Inventors: Norbert Weisser, Marcel Paffendorf, Wolfgang Laufer, Jürgen Herr, Stefan Mayer
  • Ventilating fan
    Patent number: D944387
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 22, 2022
    Assignee: ebm-papst St. Georgen GmbH & Co. KG
    Inventors: Norbert Weisser, Arnold Kuner, Volker Mauch, Marcel Paffendorf, Stefan Mayer, Tobias Brucker, Fabian Moser, Achim Löffler