Patents by Inventor Roland Eiwen

Roland Eiwen 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).

  • Test head for protective mask testing and test head system
    Patent number: 7988452
    Abstract: A test head (10) for breathing mask testing includes a hard head part (12) formed of a hard material and includes a face side (18) and a soft face front (14) of a defined thickness applied to the face side (18) of the hard head part (12). The soft face front (14) has a simulated human face surface defining a mask seal contact surface (22). A breathing mask testing system is also provided including the testing head (10) including a human face surface defining a mask seal contact surface (18) and a mouth opening connected to a respiration tube (50). A testing device (32) is provided with a test head adapter (30) protruding from the testing device (32). The hard head part (12) has a support portion (29) with an adapter interface for the adapter (30). The adapter interface includes a rotational position fixing mechanism for fixing the hard head part (10) to the adapter (30) in one of a plurality of rotational positions.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 2, 2011
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Roland Eiwen, Björn Ehler
  • TEST HEAD FOR PROTECTIVE MASK TESTING AND TEST HEAD SYSTEM
    Publication number: 20090288504
    Abstract: A test head (10) for breathing mask testing includes a hard head part (12) formed of a hard material and includes a face side (18) and a soft face front (14) of a defined thickness applied to the face side (18) of the hard head part (12). The soft face front (14) has a simulated human face surface defining a mask seal contact surface (22). A breathing mask testing system is also provided including the testing head (10) including a human face surface defining a mask seal contact surface (18) and a mouth opening connected to a respiration tube (50). A testing device (32) is provided with a test head adapter (30) protruding from the testing device (32). The hard head part (12) has a support portion (29) with an adapter interface for the adapter (30). The adapter interface includes a rotational position fixing mechanism for fixing the hard head part (10) to the adapter (30) in one of a plurality of rotational positions.
    Type: Application
    Filed: May 23, 2008
    Publication date: November 26, 2009
    Applicant: DRAGER SAFETY AG & CO. KGAA
    Inventors: Roland EIWEN, Bjorn EHLER