Patents by Inventor Ernst M. Schmidt

Ernst M. Schmidt 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).

  • Head-drum mounting for a helical scan tape recorder
    Patent number: 4395745
    Abstract: The head-drum rotary system of a helical scan video recorder is centered on the drive spindle without tilting, by elastic deformation of two wall portions which serve as centering devices. At least one of the centering devices may also function as a clamping element for holding the head-drum system on the spindle.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: July 26, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Petrus J. J. Aarts, Harald Fleck, Karl Kocsisek, Ernst M. Schmidt
  • Disposable injection syringe
    Patent number: 4291695
    Abstract: A disposable injection syringe having a very small volume of unusable injection liquid. The liquid container has a constant diameter over its entire length so that the plunger can move at least all the way to the needle connection end of the container.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: September 29, 1981
    Assignee: Duphar International Research B.V.
    Inventors: Hendrik M. Bekkering, Ernst M. Schmidt
  • Gas and/or vapor discharge lamp
    Patent number: 4129800
    Abstract: The invention relates to a low-pressure sodium vapor discharge lamp provided with a U-shaped discharge tube which is enveloped by an outer bulb. The bend of that discharge tube is supported by means of a metal element relative to the outer bulb.In accordance with the invention the bend of the discharge tube is partly passed through a hole in the metal element and bears against two fingers which are part of the metal element.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: December 12, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Willem Van Benthem, Ernst M. Schmidt