Patents by Inventor William Delk

William Delk 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).

  • Elevator sheave assembly
    Patent number: 11059699
    Abstract: An elevator sheave assembly with independently rotating sheaves includes a shaft having a longitudinal axis and a plurality of sheave subassemblies independently rotatable about the longitudinal axis of the shaft. Each of the plurality of sheave subassemblies includes a sheave having a running surface configured for frictional tractive engagement with a tension member, and at least one bearing rotatably connecting the sheave to the shaft. The elevator sheave assembly further includes a bearing spacer arranged between adjacent sheave subassemblies of the plurality of sheave subassemblies on the shaft to isolate rotation of the adjacent sheave subassemblies relative to one another. Each of the plurality of sheave subassemblies is independently rotatable such that the tension member associated with each of the plurality of sheave subassemblies operates on its own independently rotating sheave.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: July 13, 2021
    Assignee: TK Elevator Innovation and Operations GmbH
    Inventors: Jeffrey Duvall, William Delk, Justin Morse
  • Elevator Sheave Assembly
    Publication number: 20190263631
    Abstract: An elevator sheave assembly with independently rotating sheaves includes a shaft having a longitudinal axis and a plurality of sheave subassemblies independently rotatable about the longitudinal axis of the shaft. Each of the plurality of sheave subassemblies includes a sheave having a running surface configured for frictional tractive engagement with a tension member, and at least one bearing rotatably connecting the sheave to the shaft. The elevator sheave assembly further includes a bearing spacer arranged between adjacent sheave subassemblies of the plurality of sheave subassemblies on the shaft to isolate rotation of the adjacent sheave subassemblies relative to one another. Each of the plurality of sheave subassemblies is independently rotatable such that the tension member associated with each of the plurality of sheave subassemblies operates on its own independently rotating sheave.
    Type: Application
    Filed: February 28, 2018
    Publication date: August 29, 2019
    Inventors: Jeffrey Duvall, William Delk, Justin Morse