Patents by Inventor Margarete Solbach

Margarete Solbach 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).

  • Handrail drive pressure chain with soft rollers
    Patent number: 5372232
    Abstract: An apparatus for driving a handrail of a passenger conveying device is provided, having a drive wheel and apparatus for pressuring the handrail against the drive wheel. The apparatus for pressuring includes a plurality of rollers, made of a polymeric material having a hardness range less than that of the handrail. Specifically, the polymeric material is made of a thermoplastic polyurethane elastomer having a Shore A hardness in a range equal to or greater than 62 and less than or equal to 68 Shore A.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: December 13, 1994
    Assignee: Otis Elevator Company
    Inventors: Hermann W. Ahls, Michael Kruse, Margarete Solbach