Patents Assigned to Harald Schrott
  • Publication number: 20120230847
    Abstract: The invention relates to a vibrating armature pump having a pump housing, which comprises a cylinder for receiving a substantially linearly displaceable pump piston unit (10). The pump piston unit (10) comprises at least one pump element (11) for pumping the pumping fluid and a drive element (12) for driving the pump element (11). Both elements are designed separately and arranged loosely one behind the other.
    Type: Application
    Filed: September 8, 2010
    Publication date: September 13, 2012
    Applicant: Vermietungsgesellschaft Harald Schrott & Sysko AG GbR
    Inventor: Rudolf Lonski
  • Patent number: 5497135
    Abstract: A bistable electromagnet is moved from one operating position into the other by a short direct-current pulse, the next pulse following in each case having the opposite current direction. The essential factor in this is a permanent magnet which is arranged in the core area and which holds the armature against the action of an armature spring in one operating position. An electromagnet constructed in this manner can be produced without tolerance calibration and requires less control power when the permanent magnet is carried freely movably between two end positions in the direction of armature movement in a hollow space of the coil core. The coil core can be constructed as a pot, at the bottom of which the permanent magnet is magnetically held whilst the permanent magnet is held in the other end position by a stop in such a manner that its side facing the armature is approximately flush with the edge of the pot.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: March 5, 1996
    Assignee: Harald Schrott
    Inventors: Michael Wisskirchen, Bernd Geser