Patents by Inventor Frederic W. Glabau

Frederic W. Glabau 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).

  • Arc fault circuit breaker
    Patent number: 6232857
    Abstract: An arc fault circuit breaker (10) conducting an electric current to a protected load is presented. The circuit breaker (10) has a first (mechanical) compartment (24) and a second (electrical) compartment (62). A bimetal resistor (50) is disposed within the first compartment (24) and conducts the current therethrough. The bimetal resistor (50) has a stud (56) extending into the second compartment (62). A single sense line (60) is electrically connected to the bimetal resistor (50) and routed into the second compartment (62). The sense line (60) and said stud (56) conduct a voltage signal indicative of arcing of the current. A circuit board (84) is disposed within the second compartment (62) and is connected to the sense line (60) and stud (56) within the second compartment (62) to process the voltage signal. The circuit board (84) has a first conductive path (104) electrically connected to the stud (56), and a second conductive path (106) electrically connected to the sense line (60).
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 15, 2001
    Assignee: General Electric Company
    Inventors: Henry H. Mason, Jr., Raymond K. Seymour, Frederic W. Glabau, Douglas B. Tilghman, Joseph L. Desormeaux, Jr., Michael C. Guerrette
  • Circuit breaker with trip indication arrangement
    Patent number: 6104266
    Abstract: A visible trip indication arrangement for a circuit breaker. The visible trip indication arrangement comprises a viewing window forming a part of the breaker housing, the viewing window including indicia thereon that is readily or enhancedly visible when the circuit breaker has been tripped and essentially not visible when the circuit breaker is operating by way of a trip indicator that moves under and aligns with the viewing window when the circuit breaker is in the tripped condition. The trip indicator having a brightly colored surface, causes the indicia on the viewing window to be readily visible by way of the reflected light off a surface thereof.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: August 15, 2000
    Assignee: General Electric Company
    Inventors: Douglas B. Tilghman, Zhiqun Brenda Zhang, Frederic W. Glabau, Raymond K. Seymour, Kevin J. Fuhr, Joseph Criniti
  • Cost-efficient industrial-rated molded case breaker
    Patent number: 5389906
    Abstract: A molded case circuit breaker controlled by an electronic trip unit is cost-competitive with electromagnetic circuit interruption devices. A novel contact arm assembly and shield arrangement in combination with a contact arm spacer and operating cradle interface reduces the assembly time and the number of operating components to effect significant cost savings.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: February 14, 1995
    Assignee: General Electric
    Inventors: Roger N. Castonguay, David Arnold, Roger J. Morgan, Frederic W. Glabau, Henry J. Tucholski, Thomas T. B. Reyes
  • Cost-efficient industrial-rated molded case breaker
    Patent number: 5337031
    Abstract: A molded case circuit breaker controlled by an electronic trip unit is cost-competitive with electromagnetic circuit interruption devices. A novel contact arm assembly and shield arrangement in combination with a contact arm spacer and operating cradle interface reduces the assembly time and the number of operating components to effect significant cost savings.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: August 9, 1994
    Assignee: General Electric Company
    Inventors: Roger N. Castonguay, David Arnold, Roger J. Morgan, Frederic W. Glabau, Henry J. Tucholski, Thomas T. B. Reyes