Patents by Inventor Bertil Johansson

Bertil Johansson 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: 6814006
    Abstract: The present invention relates to a composed projectile for subcalibre projectile comprising a sabot, a projectile and a driving speculum, whereby said composed projectile comprises a projectile made of a metal material, preferably having a high density, and that the length of the composed projectile is not substantially longer than the projectile, as well as a cartridge comprising such a composed projectile.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: November 9, 2004
    Inventor: Bertil Johansson
  • Patent number: 6640478
    Abstract: A firing mechanism for firearms, in particular a firing mechanism for automatic firearms, without preadjustmnent with regard to the choice of firing single rounds or bursts of fire, whereby a firing link provided with firing edge and arranged around a rotational axis, a lever arm being able to become influenced by the firing edge, which lever arm is present in a spring joint with a lever link, whereby said lever link is present in a spring joint in relation to a sear which carries one or more holding teeth for a bolt, whereby the lever arm/lever link are arranged around a further rotation axis.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: November 4, 2003
    Inventor: Bertil Johansson
  • Publication number: 20030167958
    Abstract: The present invention relates to a composed projectile for subcalibre projectile comprising a sabot, a projectile and a driving speculum, whereby said composed projectile comprises a projectile made of a metal material, preferably having a high density, and that the length of the composed projectile is not substantially longer than the projectile, as well as a cartridge comprising such a composed projectile.
    Type: Application
    Filed: September 30, 2002
    Publication date: September 11, 2003
    Inventor: Bertil Johansson
  • Patent number: 6615530
    Abstract: The present invention relates to a sight for firearms, which sight comprises a sight house being applicable onto the upper side of a weapon and in this house a diopter provided unit turnably arranged around a horizontal axis, whereby a cylindrical sight unit is present in the sight house which sight unit comprises segmented extending diopter apertures turnably and horizontally arranged on a threaded bolt which runs between walls of said sight house.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: September 9, 2003
    Assignee: CBJ Tech AB
    Inventor: Bertil Johansson
  • Publication number: 20020062590
    Abstract: The present invention relates to a sight for firearms, which sight comprises a sight house being applicable onto the upper side of a weapon and in this house a diopter provided unit turnably arranged around a horizontal axis, whereby a cylindrical sight unit is present in the sight house which sight unit comprises segmented extending diopter apertures turnably and horizontally arranged on a threaded bolt which runs between walls of said sight house.
    Type: Application
    Filed: August 23, 2001
    Publication date: May 30, 2002
    Inventor: Bertil Johansson
  • Publication number: 20020053155
    Abstract: A firing mechanism for firearms, in particular a firing mechanism for automatic firearms, without preadjustmnent with regard to the choice of firing single rounds or bursts of fire, whereby a firing link provided with firing edge and arranged around a rotational axis, a lever arm being able to become influenced by the firing edge, which lever arm is present in a spring joint with a lever link, whereby said lever link is present in a spring joint in relation to a sear which carries one or more holding teeth for a bolt, whereby the lever arm/lever link are arranged around a further rotation axis.
    Type: Application
    Filed: December 28, 2001
    Publication date: May 9, 2002
    Inventor: Bertil Johansson
  • Patent number: 4966818
    Abstract: This invention relates to a method to consolidate a metal powder body to a completely dense body, in which a plate capsule consisting of a cylindrical wall and in one end thereof an end plate is charged with said powder so that the powder completely or essentially completely will fill the capsule, whereafter the air optionally is evacuated from the capsule and optionally replaced with a non-oxidizing protective gas, said capsule thereafter being closed also in the opposite end by an end plaate, whereafter the capsule with its content is heated to a forging temperature suitable for the metal powder and is forged so that the powder is consolidated to a completely dense body.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: October 30, 1990
    Assignee: Uddeholm Tooling Aktiebolag
    Inventors: Bertil Johansson, Per Hasselstrom
  • Patent number: 4807512
    Abstract: Automatically feeding firearm having a bolt (2) which upon shooting is reciprocally moving in the receiver (1) of the weapon actuated by a recoil spring (4), and in which the bolt (2) when being set for firing its first shot, for the purpose of executing its function, is pulled back and is kept tensioned in the receiver until a trigger bar or a similar lock means releases the bolt, or alternatively the bolt is directly returned to a front position after having brought a cartridge from the magazine into a cartridge position and after having tensioned a separate firing mechanism, and in which the weapon is formed with an actuation bar (5) projecting from the back (9) of the weapon and adapted for tensioning the bolt (2) by being pulled rearwardly, which bar after said tensioning of the bolt is adapted to be returned to its initial front position.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: February 28, 1989
    Inventor: Bertil Johansson
  • Patent number: 4798018
    Abstract: Magazine locking means for firearms of the type having a pistol grip or a corresponding part to be grabbed by the firing hand of the marksman, and in which an exchangable magazine (5) is adapted to be introduced, and in which a magazine catch (9) is adapted to releasably lock the magazine a position introduced in a magazine guide of the pistol grip or in a corresponding inner position, and in which the magazine catch (9) is movable mounted (10) at the front edge of the magazine guide and is formed so as to engage (by 16 ) under a projecting part (17) at the front side of the magazine (5) when the magazine catch is in its locking position. The magazine catch is formed with an upper yoke part (12) having two grab parts (13, 14), which project on each side of the magazine guide, and which readily and without the need of changing hand grip can be actuated optionally the thumb of the left hand or the right hand for releasing the magazine.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: January 17, 1989
    Inventor: Bertil Johansson
  • Patent number: 4285526
    Abstract: A sealing device for bearings in which two sealing areas are provided in series, each comprising an elastomeric sealing lip, the lips being part of a single ring and contacting cylindrical surfaces of a surrounding housing, the sealing ring being attached to a metallic liner.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: August 25, 1981
    Assignee: Stefa Industri Aktiebolag
    Inventors: G. Rune Klinteberg, N. A. Bertil Johansson, B. Lennart Johansson, Christer H. Dahlgren
  • Patent number: 4235875
    Abstract: Novel alkyl 1-(hydroxyalkyl)piperidines and acid addition salts thereof, useful as inhibitors of dental plaque and therefore also useful against dental caries and periodontitis, are disclosed. Methods of making same, orally-acceptable compositions thereof, a method of treating therewith, and important and novel intermediates for the production thereof are also disclosed.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: November 25, 1980
    Assignee: A.B. Ferrosan
    Inventors: Sven E. H. Hernestam, Lars O. Willard, Aina L. Abramo, Hans-Bertil Johansson
  • Patent number: D647160
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: October 18, 2011
    Assignee: CBJ Tech AB
    Inventor: Bertil Johansson