Patents by Inventor MICHAEL KOLLMEY

MICHAEL KOLLMEY 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).

  • Patent number: 11104551
    Abstract: An escalator includes movable step segments. Each step segment includes a rectangular step plate with a constant height, a tread, and four corners. The tread of each step segment is in a horizontal position during a front transport movement and in an oblique position during a rear return movement. Four wheels which include two front wheels and two rear wheels are assigned to each step segment, with one wheel being mounted at each of the four corners. Two endless transport chains transport the two front wheels at a front transport section. Two first tracks have the two rear wheels run thereon without being attached to any of the two endless transport chains. Two rear second transport tracks are arranged in a rear return transport section. The two rear second transport tracks transport each step segment back with the tread in an oblique position via the two endless transport chains.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 31, 2021
    Inventors: Michael Kollmey, Birgit Struve, Antje Proske, Christine Mahn, Katrin Weste
  • Publication number: 20210147186
    Abstract: An escalator includes movable step segments. Each step segment includes a rectangular step plate with a constant height, a tread, and four corners. The tread of each step segment is in a horizontal position during a front transport movement and in an oblique position during a rear return movement. Four wheels which include two front wheels and two rear wheels are assigned to each step segment, with one wheel being mounted at each of the four corners. Two endless transport chains transport the two front wheels at a front transport section. Two first tracks have the two rear wheels run thereon without being attached to any of the two endless transport chains. Two rear second transport tracks are arranged in a rear return transport section. The two rear second transport tracks transport each step segment back with the tread in an oblique position via the two endless transport chains.
    Type: Application
    Filed: April 27, 2018
    Publication date: May 20, 2021
    Inventors: MICHAEL KOLLMEY, BIRGIT STRUVE, ANTJE PROSKE, CHRISTINE MAHN, KATRIN WESTE