Patents by Inventor Ralf Wieland

Ralf Wieland 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: 8093984
    Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: January 10, 2012
    Assignee: ABB AG
    Inventors: Manfred Hofmann, Wolfgang Pump, Ralf Wieland, Albert Stieger, Joachim Majewski, Roland Ritz, Klaus-Peter Eppe, Erwin Muders, Joachim Becker, Rainer Ludovici, Heinz-Erich Popa, Wolfgang Suess
  • Publication number: 20100127816
    Abstract: An installation switching device includes a housing, a main contact point having an arc quenching chamber, an input terminal, an output terminal, an impact-style armature system configured to move the main contact point to an open position, a latching mechanism having a latching point and configured to open an isolating contact point disposed in a secondary current path parallel to a main current path, a main thermostatic bimetallic strip configured to act on the latching point to as to cause the main contact point to remain in the open position, a current limiting resistor disposed in the secondary current path, a selective thermostatic bimetallic strip disposed in the secondary current path and configured to act on the latching mechanism, a handle configured to act on the latching mechanism so as to open and close the main contact point, and a phase connecting rail.
    Type: Application
    Filed: April 24, 2008
    Publication date: May 27, 2010
    Applicant: ABB AG
    Inventors: Manfred Hofmann, Wolfgang Pump, Ralf Wieland, Albert Stieger, Joachim Majewski, Roland Ritz, Klaus-Peter Eppe, Erwin Muders, Joachim Becker, Rainer Ludovici, Heinz-Erich Popa, Wolfgang Suess
  • Publication number: 20100072049
    Abstract: An electrical switch with a main current path and an auxiliary current path comprises a first stationary contact piece, a first moveable contact piece, a contact lever, a second stationary contact piece, a second moveable contact piece, a contact carrier, a toggle switch, a first intermediate lever, a control lever, a second intermediate lever, a latching lever, a release lever configured to form a latching connection with the latching lever at a latching point, and a tripping spring.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 25, 2010
    Applicant: ABB AG
    Inventors: Wolfgang Suess, Erwin Muders, Klaus-Peter Eppe, Ralf Wieland
  • Publication number: 20080268722
    Abstract: The disclosure relates to a screw terminal for an electrical service device for connecting an electrical connecting conductor, which can be inserted through an insertion opening in the housing wall of the service switching device into the screw terminal. The screw terminal includes a terminal frame with a first transverse limb, which has a threaded hole for accommodating a clamping screw, and a clamping screw, which protrudes through the threaded hole into the terminal frame. The clamping frame, in its installed position in the housing of the service switching device, is guided displaceably parallel to the mid-axis of the clamping screw. The connecting conductor can be fixedly clamped in the terminal frame. That part of the terminal frame with which touching contact can be made in the installed position through the insertion opening from outside the device housing is covered by an insulating material.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 30, 2008
    Applicant: ABB AG
    Inventors: Ralf Wieland, Klaus-Peter Eppe, Albrecht Vogel, Wolfgang Wilhelm
  • Publication number: 20020149462
    Abstract: A service switching device is described. The service switching device has a thermal release, an electromagnetic release, a switching mechanism with a latching point, a contact point with a moving contact piece and a stationary contact piece. When an over-current condition occurs, the thermal release unlatches the latching point so that the contact points are opened permanently and, when a short-circuit current occurs, the electromagnetic release moves the moving contact piece to the open position. The service switching device has a housing and an associated actuator in the form of a piezoelectric bending strip, which likewise acts on the latching point in order to open the contact point permanently, with a fault current detection device being provided, whose output signal drives the actuator when a fault current occurs.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 17, 2002
    Inventors: Winrich Habedank, Walter Kahl, Bernd Siedelhofer, Ralf Wieland