Patents by Inventor Keijo Kalevi Kroger

Keijo Kalevi Kroger 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).

  • Patent number: 4058183
    Abstract: A straddle carrier, between the side bodies of which a space is formed for the loads to be transported, particularly characterized in that its body consists of two opposed upper side bodies, which have been mutually connected by a transversal beam at their middle, and the driver's cab being placed upon this beam. By this arrangement, unobstructed forward and rearward visibility from the driver's seat is gained, in contrast with the design of prior art incorporating one transversal beam at the front and another in the rear.Further, optional characteristics specify that the transversal beam is of a box-type design and serves in the manner of a torsion spring to adapt the carrier to uneven driving surfaces; that the straddle carrier's power means (at least one engine) are placed below the upper side bodies, supported by separate lower side bodies; and that the upper surfaces of the upper side bodies are sloping for even more expanded visibility.
    Type: Grant
    Filed: January 8, 1973
    Date of Patent: November 15, 1977
    Assignee: Valmet Oy
    Inventor: Keijo Kalevi Kroger