Patents by Inventor Jacob Birk Spiegel

Jacob Birk Spiegel 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).

  • Circuit breaker unit
    Patent number: 6242702
    Abstract: A circuit breaker unit having a backmold which can withstand horizontal axial forces, which cause deflection or bowing of the backmold. The circuit breaker unit comprises an enclosure, cradle and pultruded backmold. The pultruded backmold is molded with at least one horizontal rib adjacent a top end, a bottom end or an area therebetween to provide additional strength and support of the circuit breaker and field serviceable connections.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: June 5, 2001
    Assignee: Square D Company
    Inventors: Jacob Birk Spiegel, Chad Raymond Mittelstadt, Gregory A. Cirves