Patents by Inventor Phillip Schedl

Phillip Schedl 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).

  • Chain drive system with polygon compensation
    Patent number: 9718646
    Abstract: A chain drive includes a chain configured to rotate in a closed loop forming a load track and a return track interconnected by first and second turnaround sections; a drive sprocket for driving the chain, the drive sprocket being located in the first turnaround section of the closed loop; and a polygon compensation system for compensating the polygon effect of the chain. At least one component of the polygon compensation system is located within at least one turnaround section.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: August 1, 2017
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Walter Srb-Gaffron, Martin Michalke, Phillip Schedl
  • CHAIN DRIVE SYSTEM WITH POLYGON COMPENSATION
    Publication number: 20160039641
    Abstract: A chain drive (1) comprises a chain (5) configured to rotate in a closed loop (6) forming a load track (7) and a return track (8) interconnected by first and second turnaround sections (9, 10); a drive sprocket (12) for driving the chain (5), the drive sprocket (12) being located in the first turnaround section (9) of the closed loop (6); and a polygon compensation system for compensating the polygon effect of the chain (5). At least one component (2, 4, 14, 26) of the polygon compensation system is located within at least one turnaround section (10) and/or in at least one of the load track (7) and the return track (8) .
    Type: Application
    Filed: April 8, 2013
    Publication date: February 11, 2016
    Inventors: Walter Srb-Gaffron, Martin Michalke, Phillip Schedl