Patents by Inventor Alfred Korwin

Alfred Korwin 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).

  • Patent number: 9080580
    Abstract: A protective screen assembly (1) for a fan includes a cover part (2) having an air passage opening (4) and a protective screen (6). In the area of the passage opening (4), the protective screen (6) is connected to the cover part (2) via detent connections (8) distributed over the circumference so as to close the passage opening as protection against contact. Each detent connection (8) includes a detent shoulder (10) in the passage opening (4) and a detent element (12) on the protective screen (6). In the area of each detent element (12) at the outer edge of the protective screen (6), the protective screen (6) is resiliently deformable such that each detent element (12), for engaging and disengaging the detent connection (8), can be moved radially relative to the related detent shoulder (10), regionally deforming the protective screen (6).
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 14, 2015
    Assignee: ebm-pabst Mulfingen GmbH & Co. KG
    Inventors: Thomas Heli, Alfred Korwin
  • Patent number: 8992175
    Abstract: The present invention relates to a compact fan, comprising a fan wheel, in particular a radial fan wheel (1), which is fastened on a rotor of an external rotor motor (82). The fan wheel (1) is supported between a front plate (8) having an air inlet opening (9), which is central, and a motor mount (11). The front plate (8) and the motor mount (11) are connected to one another via multiple spacers (12), which are disposed around the circumference. The front plate (8) and the motor mount (11) are formed as plastic or metal spray parts. The spacers (12) are formed as plastic or metal parts entirely or partially in one piece to the front plate (8) and/or the motor mount (11).
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 31, 2015
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Thomas Heli, Jürgen Schöne, Christian Haag, Alfred Korwin
  • Publication number: 20120020772
    Abstract: Disclosed is a protective screen assembly (1) for a fan, comprising a cover part (2) having an air passage opening (4) and a protective screen (6). In the area of the passage opening (4), the protective screen (6) is connected or can be connected to the cover part (2) via a plurality of detent connections (8) distributed over the circumference so as to close the passage opening as protection against contact. Each detent connection (8) comprises a detent shoulder (10) arranged in the passage opening (4) and a detent element (12) arranged on the protective screen (6).
    Type: Application
    Filed: July 7, 2011
    Publication date: January 26, 2012
    Inventors: Thomas Heli, Alfred Korwin
  • Publication number: 20100329857
    Abstract: The present invention relates to a compact fan, comprising a fan wheel, in particular a radial fan wheel (1), which is fastened on a rotor of an external rotor motor (82). The fan wheel (1) is supported between a front plate (8) having an air inlet opening (9), which is central, and a motor mount (11). The front plate (8) and the motor mount (11) are connected to one another via multiple spacers (12), which are disposed around the circumference. The front plate (8) and the motor mount (11) are formed as plastic or metal spray parts. The spacers (12) are formed as plastic or metal parts entirely or partially in one piece to the front plate (8) and/or the motor mount (11).
    Type: Application
    Filed: January 30, 2009
    Publication date: December 30, 2010
    Applicant: EBM-PAPST MULFINGEN GMBH & CO. KG
    Inventors: Thomas Heli, Jürgen Schöne, Christian Haag, Alfred Korwin