Patents by Inventor Mats Lindgren

Mats Lindgren 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).

  • Package and blank for making the same
    Patent number: 5316212
    Abstract: A package having cardboard wall panels and a retractable pour spout (40) is fabricated from an integral cardboard blank with a respective pair of overlapping inner and outer wall panels (10 and 14) whereby the package is opened for content removal by extending said pour spout (40).
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: May 31, 1994
    Inventors: Per A. Eriksson, Mats A. Lindgren
  • Plant growing and cultivation system
    Patent number: 5228229
    Abstract: The present invention relates to a plant growing and cultivation system, comprising a plant growing table (1), plant growing containers (8) mounted in said table as well as a drainage system for surplus water and condensing water from said plant containers. The table is built with profiles (4,5), connected to each other and forming bearing supports (15,21) for soil-carrying plates or plant containers mounted in the table, which bearing supports include elements, which form channels (16,22).
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: July 20, 1993
    Inventor: Mats Lindgren
  • Apparatus for breaking wood
    Patent number: 4222549
    Abstract: A method and apparatus for use in breaking wood, such as wood splitting and tree felling, for causing the wood to break under the influence of a force acting on the cutting surfaces of a notch in the wood, such as a saw notch. The wood breaking force is produced by means of an inflatable cushion which is inserted in a flattened state into the saw notch and connected to the combustion chamber of the cylinder of the power saw motor to be inflated with compressed gas from the combustion chamber. Also disclosed is a special spark plug for the power saw motor for use in supplying the compressed gas from a combustion chamber to the inflatable cushion.
    Type: Grant
    Filed: July 6, 1978
    Date of Patent: September 16, 1980
    Assignee: Nordfor AB
    Inventor: Mats Lindgren
  • Method and apparatus for use in connection with felling of trees
    Patent number: 4172479
    Abstract: A method and apparatus for use in tree felling for causing a tree to tip under the influence of a force acting on the cutting surfaces of a saw notch in the tree trunk. The tipping force is produced by means of an inflatable cushion which is inserted in a flattened state into the saw notch and connected to the combustion chamber of the cylinder of the power saw motor to be inflated with compressed gas from said combustion chamber.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: October 30, 1979
    Assignee: Nordfor AB
    Inventor: Mats Lindgren
  • Fibre-reinforced rotor
    Patent number: 4160521
    Abstract: A rotor having an external fibre-reinforced ring or sleeve positioned coaxially about an internal rotor member. The internal rotor member has a frusto-conical outer surface and the fibre-reinforced sleeve is arranged on the outer surface of an internally frusto-conical intermediate sleeve, the conicity of which corresponds to the conicity of the internal rotor member. The intermediate sleeve with the external fibre-reinforced sleeve is pressed on the internal rotor member in the axial direction.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: July 10, 1979
    Assignee: Fiber Mechanics AB
    Inventor: Mats Lindgren