Patents by Inventor Martin K. Knudsen

Martin K. Knudsen 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).

  • Publication number: 20100064438
    Abstract: A lifting column comprising a number of telescopic members and a drive unit for extension of the members located internally herein. The column is intended for hospital and care beds of the art comprising a column at each end in its longitudinal centre plane and connected to the lower frame (1) and the upper frame (2) respectively so that the height of the upper frame can be adjusted by activating the drive unit of the lifting columns. This drive unit is a scissor mechanism constructed as a separate unit with two identical interconnected scissors (6, 7) located between a bottom and top element (8, 9) and by the longitudinal edges of these plates. A linear actuator (18) is, with its one end, secured to one of the bottom and top element and the other end secured to an interconnection element (16) between the two scissors. The scissor mechanism hereby becomes particularly rigid and the telescopic members can thus be constructed as a simple enclosure without stability.
    Type: Application
    Filed: November 5, 2007
    Publication date: March 18, 2010
    Inventors: Martin K. Knudsen, René Sørensen
  • Patent number: D654524
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 21, 2012
    Assignee: Linak A/S
    Inventors: Torben Iversen, Rene Sørensen, Martin K. Knudsen