Patents by Inventor Mathew R. Ruster

Mathew R. Ruster 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).

  • Continuous force spring elevatable work platform
    Patent number: 9693624
    Abstract: A work platform height adjustment apparatus having a frame and a support assembly moveably mounted on the frame. The frame is provided with cover panels which are mounted to the frame and the support assembly carries a spring biased work platform on brackets mounted to the support assembly so that the work platform can assume a number of fixed height positions.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 4, 2017
    Assignee: QUEST ENG LLC
    Inventors: Terry Mitchell, Richard D. Arnold, Mathew R. Ruster, Greggory J. Elhart
  • CONTINUOUS FORCE SPRING ELEVATABLE WORK PLATFORM
    Publication number: 20160353876
    Abstract: A work platform height adjustment apparatus having a frame and a support assembly moveably mounted on the frame. The frame is provided with cover panels which are mounted to the frame and the support assembly carries a spring biased work platform on brackets mounted to the support assembly so that the work platform can assume a number of fixed height positions.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Applicant: QUEST ENG LLC
    Inventors: Terry Mitchell, Richard D. Arnold, Mathew R. Ruster, Greggory J. Elhart