Patents by Inventor Karl H. Larsson

Karl H. Larsson 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: 4582193
    Abstract: A flight which is attached to a drive mechanism such as a chain is disclosed. The flight may be used to form a conveyor for transporting articles, when a series of flights are attached to the drive mechanism in succession. The disclosed flight includes a horizontal slot in its forward support element which is slipped onto a pin on the drive mechanism, and a rear support element having a vertical slot with a detent, which is snapped onto a succeeding pin as the flight is rotated downward around the forward support pin in the horizontal slot of the forward support element, acting as a pivot. Attachment and detachment is very simple, requiring no special tools. The forward and rear support elements are in different vertical zones or planes, so that the forward support element of one flight may be attached to the same pin as the rear support element of an adjacent flight. This allows the flight to be used with double pitch as well as single pitch chains.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: April 15, 1986
    Assignee: Bivans Corporation
    Inventor: Karl H. Larsson
  • Patent number: 4173379
    Abstract: A card index drawer comprising bottom (2) and wall panels (3, 4, 5, 6) manufactured as individual parts, having panel connections formed by pairwise interengaging marginal portions (9, 11, 12, 15, 17, 18) of adjacent panels, effected by mutual telescoping, wherein stop members (27, 28) or stop members (25, 26) can be provided which determine the assembly end position of the telescoping of marginal portions of adjacent panels in the sense of sliding into one another, and prevent marginal portions of adjacent panels from telescoping in the sense of sliding out of the assembly end position.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: November 6, 1979
    Assignee: George Laurens van der Heiden
    Inventors: George L. van der Heiden, Karl H. Larsson
  • Patent number: 4032129
    Abstract: An adjustable tension spring anchor adapted to be mounted to a moving or a substantially stationary member comprising an elongated threaded cylindrical body member having at least one distal end thereof formed with an extending flat head member, the head member being provided with a central aperture in which one end of a tension spring is received therein. Various uses are contemplated wherein a plurality of anchors can be arranged in several ways to be interconnected to respective tension springs, the anchors being either positioned in axial alignment with each other or at various angular arrangements thereto, depending on the use and location of the tension spring. An alternative embodiment is also included wherein the threads on the body member are substituted for annular grooves adapted to receive removable snap rings therein.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: June 28, 1977
    Inventor: Karl H. Larsson