Patents by Inventor Manfred Raubach

Manfred Raubach 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).

  • Co-oscillating, volume-changing resonator in the form of a silencer
    Patent number: 4683979
    Abstract: A co-oscillating, volume-changing resonator in the form of a silencer, includes a lens-shaped housing formed of a material having a given flexural stiffness, the housing being arched defining an evacuated cup-shaped cavity formed therein, and a coating layer completely surrounding the housing, the coating layer being formed of a material having a flexural stiffness being at most one-third of the given flexural stiffness of the material of the housing.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: August 4, 1987
    Assignee: Metzeler Kautschuk GmbH
    Inventors: Michael Ghibu, Volker Hartel, Carl Heynemann, Manfred Raubach
  • Co-oscillating, volume-changing resonator in the form of a silencer
    Patent number: 4570748
    Abstract: A co-oscillating, volume-changing resonator in the form of a silencer, includes a lens-shaped housing formed of a material having a given flexural stiffness, the housing being arched defining an evacuated cup-shaped cavity formed therein, and a coating layer completely surrounding the housing, the coating layer being formed of a material having a flexural stiffness being at most one-third of the given flexural stiffness of the material of the housing.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: February 18, 1986
    Assignee: Metzeler Kautschuk GmbH
    Inventors: Michael Ghibu, Volker Hartel, Carl Heynemann, Manfred Raubach