Patents by Inventor John P. Nodine

John P. Nodine 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: 6892645
    Abstract: Multiple independent penetrating electrode non-electric tips in which the electrodes are separated in a non-coaxial arrangement so as to generate a spark gap internal to the non-electric shock tube, with the electrodes being brought together inside of the shock tube at a very precise distance, improving longevity by eliminating ablation of the insulating material between the inner and outer electrodes, reducing electrical shorting of the electrodes, and providing more consistent and reliable ignition of shock tubes.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: May 17, 2005
    Inventor: John P. Nodine
  • Publication number: 20040025735
    Abstract: Multiple independent penetrating electrode non-electric tips in which the electrodes are separated in a non-coaxial arrangement so as to generate a spark gap internal to the non-electric shock tube, with the electrodes being brought together inside of the shock tube at a very precise distance, improving longevity by eliminating ablation of the insulating material between the inner and outer electrodes, reducing electrical shorting of the electrodes, and providing more consistent and reliable ignition of shock tubes.
    Type: Application
    Filed: March 28, 2003
    Publication date: February 12, 2004
    Inventor: John P. Nodine
  • Patent number: 6196131
    Abstract: The present invention provides a non-electric initiator tip for use with a non-electric shock tube initiation device. The initiator tip of the present invention comprises an inner electrode, an outer electrode, and a conductive component electrically coupled to the inner and outer electrodes for applying current to the inner and outer electrodes to thereby cause a percussion spark to be generated. When the initiator tip is connected to an initiation device, the conductive component of the initiator tip is electrically coupled to electronics in the initiation device such that, when the initiation device is actuated, the electronics in the initiation device in conjunction with a power supply cause a voltage differential to be generated between the inner and outer electrodes and a percussion spark to be produced. The percussion spark initiates gun powder contained in a shock tube mounted to the initiator tip.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: March 6, 2001
    Inventors: Ronald A. Yanda, John P. Nodine
  • Patent number: 5379145
    Abstract: A laser transmitter utilizes a laser diode which is biased to its stimulated (laser) emission mode of operation by the application of current from a source of one or more operating voltages. The failure of any of these voltages and over temperature conditions of the laser are detected by an optical AND gate which switches the operating voltage off when any one of them is absent. The temperature of the laser is also detected and applied to one of the optos in the chain of the AND gate such that an over temperature condition also results in the switching off of the operating voltage and shut down of the laser. The temperature detection is by way of a circuit having hysteresis such that the optical AND gate is not enabled until the temperature the laser decreases below the initial cut off temperature. Operating current for biasing the laser for laser emission is applied gradually over a period from one to five seconds by connecting the switched operating voltage source to the laser through a slow start circuit.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: January 3, 1995
    Assignee: Scientific-Atlanta, Inc.
    Inventor: John P. Nodine
  • Patent number: D355638
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: February 21, 1995
    Inventors: Ronald L. Hodge, John P. Nodine, Wayne Anderson, Jr.