Patents by Inventor David T. Rench

David T. Rench 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).

  • Materials handling vehicles having seats with pivoting backrests
    Patent number: 7543877
    Abstract: A compressive member is used to bias a seat backrest into a predetermined position, generally upright as illustrated, relative to a seat base with the compressive member deforming to enable the seat to be pivoted by the application of force to the backrest. When used on a materials handling vehicle for which it is particularly applicable, the resiliently biased backrest attenuates forces that are transferred to the back of an operator occupying the seat when the vehicle is driven over irregularities in a floor supporting the vehicle.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: June 9, 2009
    Assignee: Crown Equipment Corporation
    Inventors: Eric J. Hanson, Steven R. Pulskamp, Eric J. Kaiser, Ted R. Wagner, David T. Rench, George R. Wetterer
  • Seat assembly
    Patent number: D554876
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: November 13, 2007
    Assignee: Crown Equipment Corporation
    Inventors: Eric J. Hanson, Steven R. Pulskamp, Brad A. Halbert, Eric J. Kaiser, David T. Rench, Ted R. Wagner, George R. Wetterer