Patents by Inventor William J. McNulty

William J. McNulty 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: 6130530
    Abstract: A tester for power transformers and capacitors includes a pulse generator for applying a pulsating test signal to a pair of test leads which may be connected across the terminals of the device to be tested. Also connected across the test leads are a capacitor detector, an inductor detector and a continuity detector. If the connections to the transformer or capacitor in the device to be tested are good, the capacitor detector and inductor detector will distinguish one from the other and indicate that its condition is good. If the connections to the device are not good, the continuity detector will indicate whether there is a short circuit or open circuit condition. The detectors are coupled through control logic circuitry to an indicator circuit including a horn and blinking lights for providing unique indications of capacitor okay, inductor okay, short and open conditions. The capacitor detector provides a discharge path for a capacitor and detects the discharge current flow.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: October 10, 2000
    Assignee: HD Electric Company
    Inventor: William J. McNulty
  • Patent number: 6124714
    Abstract: A lightning arrester tester includes two tubular poles respectively carrying probe terminals, one probe terminal being connected in series through a high-voltage rectifier and high-resistance circuit disposed within the pole to one terminal of a DC microammeter mounted on the outside of the one pole, the other probe terminal being connected through a high-resistance circuit housed within the second pole to the other meter terminal. A diode is connected in parallel with the meter to protect the meter from high leakage currents. In use, the probe terminals are respectively connected to a high-voltage power transmission or distribution line and one terminal of an arrester, the other terminal of which is grounded or, alternatively, to ground and to one terminal of an arrester, the other terminal of which is connected to a high-voltage power transmission or distribution line. The meter displays DC leakage current through the arrester.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: September 26, 2000
    Assignee: HD Electric Company
    Inventors: William J. McNulty, Mark R. Hoffman
  • Patent number: 5497211
    Abstract: An indicia display device for eyeglasses or the like includes a display pennant, an elongated support and a fastener for coupling with an eyeglass templepiece. The pennant is mounted in upright position, atop the support and above and beyond the peripheral vision of the wearer. The fastener includes a pair of slots for accepting the templepiece of a pair of glasses and for permitting slidable movement of the device along the length of the templepiece until the pennant is correctly positioned.The generally planar support provides an additional surface for display of indicia. In certain preferred forms, the device is of unitary construction with a pair of disposable sunglasses.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: March 5, 1996
    Inventor: William J. McNulty
  • Patent number: 5393240
    Abstract: A load separable connection is provided, including a loadbreak elbow having a contact probe, and a bushing into which the contact probe is received in a tulip contact therein. An ablative insert, including a projecting lip extending over the outer circumference of the tulip contact at the end thereof, is provided within bushing. The insert helps extinguish arcs created during live connection of the elbow over the bushing, and also helps physically block the access of the arc to the bushing components surrounding the tulip contact.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: February 28, 1995
    Assignee: Cooper Industries, Inc.
    Inventors: John M. Makal, Wayne W. Lien, William J. McNulty
  • Patent number: D326432
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: May 26, 1992
    Inventor: William J. McNulty