Dipping Frame Patents (Class 144/65)
  • Patent number: 5746263
    Abstract: The present invention concerns a method of producing a wooden package or container from an elongated piece of wood, e.g., a precut alder or birch piece (block). The invention is implemented by separating at least one essentially cylindrical, hollow blank (1) with the help of axial boring longitudinally from inside said block of wood, drying the blank and working its outer and inner surfaces by conventional wood-working techniques such as milling and turning to mutually concentric cylindrical surfaces of desired diameters, finishing said surfaces to desired smoothness by, e.g., sanding, and attaching to the cylindrical envelope piece thus obtained a bottom piece (2), and when required, also cover (3).
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: May 5, 1998
    Assignee: Suomen Yrittajain Tuki R.Y.
    Inventor: Matti Koverola