Patents by Inventor Bernhard Pfeiffer

Bernhard Pfeiffer 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).

  • Multipole low-voltage circuit breaker with an insulating material housing and arc-quenching chambers
    Patent number: 4845460
    Abstract: A multipole low-voltage circuit breaker with an insulating material housing and arc quenching chambers. By a new mechanical design, the installation of the arc quenching devices is to be facilitated. All arc quenching chambers of a switchgear are arranged in a quenching chamber housing which is subdivided by partitions and is fastened to the insulating material housing of a circuit breaker. The quenching baffles are fastened directly to the walls of the arc quenching chambers. A low-voltage circuit breaker with an insulating material housing of compact design is thus provided.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: July 4, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl-Heinz Manthe, Martin Boettcher, Bernhard Pfeiffer