Patents by Inventor Leo Gruber

Leo Gruber 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: 5086919
    Abstract: A novel packaging for several tape-form recording media (5) wound on reel cores (6) or spools provided with internal bores consists of two pallets (1, 2) and optionally hubs (3) which are raised in the axial center (10) and of which the diameter corresponds to the clear internal diameter of the bores of the reel cores (6). The packaging can be sealed by a shrink film (4) which can be pulled thereover. The cuboid pallets (1, 2) which can be joined together have groove-like notches (7) at their edges, the interior of the pallets reproduces the outer shape of the pancakes (5) and the weld seam (8) of the shrink film (4) is formed in one of the notches (7). The pallets (1, 2) also have window-like cutouts (9) on their four narrow sides. Pallets as well as the hub (3) passing through the axial center (10) of the pancakes are preferably composed of Styropore (FIG. 1).
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: February 11, 1992
    Assignee: BASF Magnetics GmbH
    Inventors: Jose Toral, Hermann Brandstetter, Hartmut Thiele, August Liepold, Leo Gruber
  • Patent number: 4944407
    Abstract: A square packing container is described, manufactured from a one-piece blank comprising a base and a lid portion and side wall surfaces located thereon, which are connected to one another by means of connecting tabs, and wherein weakened lines are formed on the side wall surfaces. According to the invention, the weakened lines (9, 9', 10, 10', 11) are formed approximately in the plane of symmetry of the side wall surfaces (3, 4), and moreover, two perforated tabs (5, 6) are formed on at least one side wall (3). An adhesive tape (12) encircling the side wall surfaces is stuck on to the projections (5', 6') of the perforated tabs (5, 6), each in the direction of the side edges (7, 8), with the adhesive tape (12) connecting the side tabs (13, 13' and 14, 14') of the base portion (15) and the lid portion (16) with one another.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: July 31, 1990
    Assignee: Reel/Frame 5189/0412 Agfa-Gevaert Aktiengesellschaft
    Inventors: Harmut Thiele, Leo Gruber, Jose Toral
  • Patent number: 4081151
    Abstract: The winding cores are flangeless and adapted to receive magnetic tapes. For reasons of compact packaging, it is desired to be able to stack several reels of tape securely for transport. For this reason, the winding core is designed so that the height of the winding surface is equal to or slightly greater than the width of the tapes to be wound on it. In addition, the surfaces between the internal and external circumference or on the internal circumference of the winding core have projections which project upwards or downwards from the medial plane of the core by half the total height of the core. When several cores are stacked above one another, these projections interlock so that the winding surfaces are stacked as closely together as possible.
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: March 28, 1978
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Gunter Ender, Helmut Schultz, Hartmut Thiele, Leo Gruber, Heinrich Kober, Werner Bottcher, Tibor Macheiner