Patents by Inventor Tage Steffensen

Tage Steffensen 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).

  • Method for making a supporting crossbar construction and a crossbar construction made according to the method
    Patent number: 5845379
    Abstract: A supporting crossbar construction is made from thin metal strip by feeding the strip lengthwise to a punching station, and forming in the punching station four parallel rows of slits extending lengthwise of the strip so that five parallel plate fields are formed extending lengthwise of the strip. The strip is then deformed so that the strip is expanded into a construction having two outer straight plate fields and a straight middle plate field between the two outer plate fields, the middle plate field being interconnected with each of the two outer plate fields by a plurality of diagonal members that are spaced apart and are formed by the deformation of the plate fields between the middle and outer plate fields, whereby the middle and outer plate fields are spaced a greater distance apart from each other. The middle plate field is then bent about at least one longitudinal bend line so as to bring together the two outer plate fields.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: December 8, 1998
    Inventor: Tage Steffensen