Patents by Inventor Erling Tidstrom

Erling Tidstrom 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: 4391179
    Abstract: A combat vehicle, for instance in the form of a tank, comprises a large-caliber firearm of 100 mm or more. The firearm is provided with an automatic loading device for separate-loading ammunition. Outside of the combat vehicle a magazine is arranged for holding charges, and inside the vehicle a crew position is permitting vision around the horizon. The vehicle is moreover made with a small frontal area.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: July 5, 1983
    Assignee: Aktiebolaget Bofors
    Inventor: Erling Tidstrom
  • Patent number: 4329909
    Abstract: A self-propelled gun is provided with a magazine arranged on the outside of or in the gun chassis which is then also located at the rear parts of the chassis. The gun is mounted on top of the chassis, so that the gun can be aimed in elevation and/or traverse in relation to the gun chassis. A round carrying part which is arranged in front of the magazine and under the rear parts of the gun is comprised in a device for feeding of ammunition from the magazine to the ramming position at the gun. Said device also comprises a longitudinal displacement mechanism arranged in the magazine for the respective rounds. When the respective rounds are received from the magazine, the round carrying part is set with its longitudinal direction coinciding with the longitudinal direction of the respective round and particularly coinciding with or parallel to the longitudinal axis of the gun.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: May 18, 1982
    Assignee: Aktiebolaget Bofors
    Inventor: Erling Tidstrom
  • Patent number: 4038906
    Abstract: A round is rapidly transferred from a magazine, located at a fixed position on the chassis of a tank, to a ramming position adjacent a traversable firearm mounted in a turret on the tank, by use of a loading trough which is actuated by a hydraulic cylinder to transport a round from the magazine to a round cradle. The round cradle is rotatable about an axis extending at right angles to the traversing plane of the firearm, is located in a predetermined feeding position relative to the magazine for receiving the round delivered by the loading trough, is thereafter rotated through an angle to orient the cradle and round thereon to a position coinciding with the prevailing traverse position of the firearm, whereafter gripping members are activated to move the round from the cradle to the ramming position adjacent the firearm.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: August 2, 1977
    Assignee: AB Bofors
    Inventor: Bror Erling Tidstrom
  • Patent number: 3994202
    Abstract: A tank having a firearm mounted thereon for selective elevation and depression about trunnions located within a turret, is provided with a cover pivotally mounted on said turret and adapted to be engaged by the recoil jacket of the gun when the gun barrel is in a depressed position to swing the cover upwardly thereby to cause the recoil space to extend at least partially above a frame for the cover. The arrangement further includes a cartridge case deflector located within the tank below the cover and pivotally fastened at its opposing ends to a portion of the cover and to the recoil jacket of the barrel respectively, and the sides of the cartridge case deflector are adapted to be compressed by one another when engaged by a loading tray within the turret to enable rounds to be moved from a magazine to a loading position.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: November 30, 1976
    Assignee: AB Bofors
    Inventor: Bror Erling Tidstrom