Patents by Inventor Richard Eldridge

Richard Eldridge 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: 8025258
    Abstract: An electrical wire bracket including a body having an open loop and at least one mounting foot coupled to the body. The bracket also includes at least one hole through the at least one mounting foot for securing the bracket to a mounting surface. A user can pull electrical wire through the open loop of the body and then allow the body to support the electrical wire.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: September 27, 2011
    Inventor: Richard Eldridge
  • Publication number: 20080111033
    Abstract: An electrical wire bracket including a body having an open loop and at least one mounting foot coupled to the body. The bracket also includes at least one hole through the at least one mounting foot for securing the bracket to a mounting surface. A user can pull electrical wire through the open loop of the body and then allow the body to support the electrical wire.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 15, 2008
    Inventor: Richard Eldridge
  • Publication number: 20060091118
    Abstract: A system and associated method for determining an operational condition of a gas torch are provided. The system includes a diode device that is electrically connected between the workpiece and the nozzle. A sensing circuit is configured to provide an electric potential across the diode device and sense a resulting voltage characteristic of the condition of continuity of the system. For example, the sensing circuit can determine whether the nozzle is otherwise electrically connected to the workpiece and/or whether the nozzle is electrically connected to the electrode. The sensing circuit can determine the condition of continuity throughout the operation of the system, e.g., to verify the proper assembly of the torch, to verify proper movement of the electrode or nozzle, to verify that the torch is separated from the workpiece at start-up, and the like.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 4, 2006
    Inventor: Richard Eldridge
  • Publication number: 20050284849
    Abstract: The systems and methods of the present invention provide a circuit for controlling the magnitude of the main and pilot arc current provided to an arc cutting or welding machine. In one embodiment, the circuit allows the user to set the pilot arc current such that it automatically tracks the main arc current setting. The pilot arc current is set to a value that is proportional to the main arc current, such that the pilot arc current value is tailored to the specific cutting operation to be performed and/or the specific nozzle and electrode being used. In an alternative embodiment, the circuit allows the user to select from different pilot arc current levels, such as low, medium, and high current levels. This allows the user to override the pilot arc control in instances where the plasma arc cutting or welding machine is operated under conditions not optimal for the selected nozzle and electrode.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 29, 2005
    Inventor: Richard Eldridge
  • Patent number: 4767912
    Abstract: A high frequency arc stabilizing circuit includes a free running oscillator for generating a non-synchronized square wave. An output from the oscillator is buffered and inverted. The asserted and inverted outputs drive field effect transistors coupled to the primary of a high voltage step-up transformer. The circuit can also be gated so as to only operate during selected time intervals.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: August 30, 1988
    Assignee: ESAB Welding Products, Inc.
    Inventor: Richard Eldridge