Patents by Inventor Mary Grace Bello Montesclaros

Mary Grace Bello Montesclaros 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).

  • Vacuum-type electrical switching apparatus
    Patent number: 7499255
    Abstract: A vacuum-type electrical switching apparatus (10) for high voltage electrical power. A vacuum pressure condition in a vacuum pressure space (21) surrounding electrical contact points (18) is monitored and movement of the contact points between open and closed positions is automatically prevented when the pressure exceeds a predetermined threshold in order to avoid destructive arcing between the points. A sensor (32) provides a vacuum signal (34) responsive to the vacuum pressure condition. A controller (36) automatically inhibits movements of the contact points when the vacuum signal indicates that the vacuum has degraded. A contactor (38) may be placed in series with power supply (28) and a solenoid (24) used to move the contact points, with the contactor being automatically opened by the controller in response to the degraded vacuum condition.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: March 3, 2009
    Assignee: Thomas & Betts International, Inc.
    Inventors: James Francis Domo, Lance Patrick Sabados, Steven Jay Randazzo, Roderick C. Mosely, Joseph Emil Oeschger, Mary Grace Bello Montesclaros