Patents by Inventor Rune Karlsson

Rune Karlsson 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).

  • Device for adjusting the distance between soil-working tools
    Patent number: 4828043
    Abstract: A device for adjusting the distance between soil working tools such as plow bodies (5) disposed beside each other and fitted to sleeves (7) movable along a bar (3). Slewing brackets (11, 14, 15) for defining the movements of the sleeves (7) along the bar (3) are arranged articulatedly between the sleeves (7) so that the relative movement between the two outermost sleeves on the bar is a (n-1), where a is the distance of the movement between two adjacent sleeves (7) and n is the number of sleeves. A hydraulic piston-cylinder unit is arranged to provide the motion of the sleeves (7) along the bar (3).
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: May 9, 1989
    Inventor: Rune Karlsson
  • Plough for working of soil
    Patent number: 4328870
    Abstract: This invention provides a new method of ploughing in which the cut ridge is inverted in its own furrow. The plough for doing this consists of at least two upright main bodies (4) parallelly spaced and elongated in the ploughing direction. At the front portion the respective main body is provided with a ploughshare (6) extending in the horizontal plane. A mouldboard (7) designed in known manner extends from the rear edge of the share on the side of the one main body facing the second main body, while a second mouldboard (8) is arranged on the other main body on the side thereof facing the first main body. The second mouldboard (8) turns from an upright position connecting to the front portion of the main body (4) to a position where the lower edge of the mouldboard diverges from the main body at an even level while the upper edge of the plate (8) approaches that level.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: May 11, 1982
    Inventor: Rune Karlsson
  • Floor mat for stalls or cribs
    Patent number: 4211185
    Abstract: The invention relates to a non-skid foor mat for stalls or cribs, which is provided on its underside with depressions separated from each other so that a coherent mat bottom is formed between the depressions. The side walls of the depressions are preferably parallel.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: July 8, 1980
    Inventor: Rune Karlsson
  • Anti-lick ring for automatic drinking troughs for animals
    Patent number: 4204501
    Abstract: An anti-lick ring for an animal drinking trough which is held inside the trough by spaced connecting devices.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: May 27, 1980
    Inventors: Rune Karlsson, Berit Karlsson
  • Method for filling of tube electrodes
    Patent number: 4146063
    Abstract: An improved method for the filling of porous tube electrodes for electric accumulator batteries is disclosed. A paste of the active material and a liquid (e.g., water) is formed and a small amount of surplus liquid is added. The tubes are filled with resulting paste by centrifugation with the surplus liquid being removed through the tubes during filling.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: March 27, 1979
    Assignee: Aktiebolaget Tudor
    Inventor: Rune Karlsson
  • Mold board plow
    Patent number: D455443
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Blaxta Aktiebolag
    Inventor: Rune Karlsson