Patents Assigned to Dormer GmbH
  • Preparing a circuit for the production of shockwaves
    Patent number: 5245988
    Abstract: The ignition of spark gaps for the production of shockwaves in the contactless comminution of concrements, using a capacitor discharge is improved by providing at least for some time prior to the ignition proper a voltage much smaller than the breakthrough voltage for producing a small current between the electrodes that prepares a channel in the discharge gap.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: September 21, 1993
    Assignee: Dormer GmbH
    Inventors: Wolfram Einars, Harald Eizenhoefer, Reiner Schultheiss