Patents by Inventor Lennart Tenggvist

Lennart Tenggvist 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: 4831938
    Abstract: Pallet comprising base members (1-3) and crosswise members or tubes (4) perpendicularly thereto, especially a disposable pallet. According to the invention the pallet comprises base members (1-3) made by winding a web material coated with glue, the width of which suitably is equal to the length of the base member, around the first spindle, which preferably has a rectangular cross section, to the formation of an inner first bobbin (9). Subsequently a second spindle has been placed below the said first completed bobbin (9) and in contact with the lower surface thereof, the dimensions of the said second spindle being such that the same combined with the said first bobbin essentially completes the intended inner dimensions of the base member. The web material coated with glue on the surface has thereafter been wound around the structure formed by the said first bobbin (9) and the said second spindle to the formation of an outer second bobbin (10) whereupon the web has been cut and the spindles removed.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: May 23, 1989
    Inventors: Fred Atterby, Bertil Voss-Schrader, Lennart Tenggvist
  • Patent number: 4802421
    Abstract: Pallet consisting of several base members, which can have recesses for forks of a fork lift. The base members have holes perpendicular to the length of the members distributed along and closely adjacent the upper surfaces of the base members. Tubes inserted through the holes unite the base members to form the pallet. The base members consisting of three pressed carton pieces folded to a rectangular U-section, the length of each piece corresponding to the length of the base member. The first and the second pieces have a height substantially the height of the pallet. The third piece has an inner height dimension which is approximately the diameter of the tubes. The first carton piece in a base member has the U-section upright with the back of the U downwards, the second carton piece has the U-section as an inverted U-form disposed in the first carton piece. The third carton piece is located with its U-section upright and within and uppermost in the second carton piece.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: February 7, 1989
    Inventors: Fred Atterby, Bertil Voss-Schrader, Lennart Tenggvist