Patents by Inventor Angelika Minta

Angelika Minta 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).

  • Roller assembly for a passenger conveyor step chain
    Patent number: 5806653
    Abstract: A roller assembly for a passenger conveyor step chain includes a rolling contact bearing disposed between a bushing and an axle of the roller assembly. The rolling contact bearing improves wear resistance and load carrying capabilities of the roller assembly and step chain. In a particular embodiment, the roller assembly includes a pair of seals and a lubrication chamber. The seals define a sealed region encompassing the rolling contact bearing and lubrication chamber. The seals prevent lubrication from leaking and debris from penetrating into the sealed region.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: September 15, 1998
    Assignee: Otis Elevator Company
    Inventors: Hermann W. Ahls, Angelika Minta, Birgit Glogau