Patents by Inventor Randall Keemle

Randall Keemle 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).

  • Load sharing handrail drive apparatus
    Patent number: 7954619
    Abstract: A handrail drive apparatus is provided comprising a first drive wheel assembly configured to drive a handrail and comprising a planetary gear train arranged to be driven by a first driving member. The handrail drive apparatus further comprises a second drive wheel assembly configured to drive the handrail, the second drive wheel assembly being coupled to the planetary gear train of the first handrail drive wheel assembly by a second driving member. The planetary gear train of the first handrail drive wheel assembly is configured to divide a torque imparted by the first driving member between the first and second drive wheel assemblies.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: June 7, 2011
    Assignee: Kone Corporation
    Inventors: Thomas Nurnberg, Esko Aulanko, Glen Collison, Randall Keemle
  • Load sharing handrail drive apparatus
    Publication number: 20080296125
    Abstract: A handrail drive apparatus is provided comprising a first drive wheel assembly configured to drive a handrail and comprising a planetary gear train arranged to be driven by a first driving member. The handrail drive apparatus further comprises a second drive wheel assembly configured to drive the handrail, the second drive wheel assembly being coupled to the planetary gear train of the first handrail drive wheel assembly by a second driving member. The planetary gear train of the first handrail drive wheel assembly is configured to divide a torque imparted by the first driving member between the first and second drive wheel assemblies.
    Type: Application
    Filed: September 21, 2007
    Publication date: December 4, 2008
    Applicant: KONE CORPORATION
    Inventors: Thomas Nurnberg, Esko Aulanko, Glen Collison, Randall Keemle