Patents Assigned to C. Desaga GmbH, Nachf. Erich Fecht
  • Patent number: 4374723
    Abstract: The invention concerns an electrophoretic process for the investigation, analysis, and/or production, especially immunoelectrophoretic, of chemical substances, in which the substances are transported in aqueous solution in a gel carrier medium. For inhibiting or stabilizing convective transport under the action of an electric field, the aqueous solution contains reagents which form precipitates with the substances to be determined quantitatively. Due to electrophoretic transport in the aqueous phase of the carrier medium these reagents result in the production of precipitation over a migration distance which is proportional to the amount of the substances being determined.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: February 22, 1983
    Assignee: C. Desaga GmbH Nachf. Erich Fecht
    Inventor: Olof A. Y. Vesterberg
  • Patent number: 4337131
    Abstract: The invention concerns an electrophoretic process for the investigation, analysis, and/or production, especially immunoelectrophoretic, of chemical substances, in which the substances to be investigated or the starting materials for the substances are transported in aqueous solution in a gel carrier medium. For inhibiting or stabilizing convective transport under the action of an electric field, the aqueous solution contains reagents which form precipitates with the substances to be determined quantitatively. Due to electrophoretic transport in the aqueous phase of the carrier medium these reagents result in the production of precipitation over a migration distance which is proportional to the amount of the substances being determined.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: June 29, 1982
    Assignee: C. Desaga GmbH Nachf. Erich Fecht
    Inventor: Olof Vesterberg
  • Patent number: 4284491
    Abstract: An electrophoresis device includes first and second electrode vessels for containing buffer solution and adapted to be connected to poles of a direct current source. A plurality of vertical channels containing carrier medium have opposite ends opening into the first and second electrode vessels. At least one of the electrode vessels has a cavity into which commonly open adjacent ends of the channels. A sealing piece is operable to seal in an airtight manner the cavity and thereby the ends of the channels from the interior of the electrode vessel. A connection extends through the sealing piece to the cavity to connect the cavity and the interiors of the channels to a source of overpressure or underpressure.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: August 18, 1981
    Assignee: C. Desaga GmbH Nachf. Erich Fecht
    Inventor: Olof Vesterberg
  • Patent number: 4107027
    Abstract: Device for the continuous electrophoresis in a carrier free buffer current including a separating chamber, in which a separating space is located between two plane parallel glass plates held in a two-part frame and is separated from electrode chambers by permeable membranes. A dividing joint is provided between two frame-parts at least partially at an angle to a dividing plane of the frame located between and parallel to the glass plates. The membranes, when the frame-parts are pressed together along the dividing joint, are pressed against the surfaces of the frame-parts which form a part of the dividing joint, with a force component lying in the direction of the dividing plane, thus forming a seal. The separating chamber permits easy assembly and disassembly thereof.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: August 15, 1978
    Assignee: C. Desaga GmbH, Nachf. Erich Fecht
    Inventors: Helmut Muckenmuller, Hubert Muth