Patents Assigned to PROTEC Produktion Techn. Gerate GmbH
  • Patent number: 6013891
    Abstract: The invention relates to a welding apparatus (1), particularly a resistance welding apparatus, comprising a control device (2), a charging device (10), at least one energy store (22 to 24), a switching device (33 to 35) and a consumer (51), the energy store (22 to 24) being incorporated in parallel with the charging device (10) and the said energy store being connected, via the switching device (33 to 35) associated therewith and a transfer device (31) subsequent thereto, to the consumer (51), particularly a welding torch (52) with a non-melting electrode (53) and a workpiece (54). A plurality of energy stores (22 to 24) are disposed each with an associated switching device (33 to 35), and the switching devices (33 to 35) of the energy stores (22 to 24) are triggered between two charging cycles by the control device (2) for directly successive emission of at least a portion of the energy stored in one of the energy stores (22 to 24) to the consumer (51).
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: January 11, 2000
    Assignee: PROTEC Produktion Techn. Gerate GmbH
    Inventor: Ferdinand Stempfer