Patents by Inventor C. Duff Hughes

C. Duff Hughes 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).

  • Life raft container security system and method
    Patent number: 7183913
    Abstract: A method comprises providing a container having a first container portion and a second container portion, placing an inflatable life raft within the container, placing a transmitter mechanism adjacent the container, and automatically detecting whether a tamper condition has occurred. The tamper condition comprises at least one of the following: removal of the life raft from the container; an increase in distance between the first and second container portions; and a change in position of at least a portion of the life raft relative to one of the portions of the container. The transmitter mechanism is adapted and configured to transmit a signal upon the detection of the tamper condition.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 27, 2007
    Assignee: Vane Line Bunkering, Inc.
    Inventors: C. Duff Hughes, Frank Hornig, Kevin Brophy
  • Life raft container security system and method
    Publication number: 20040239435
    Abstract: A method comprises providing a container having a first container portion and a second container portion, placing an inflatable life raft within the container, placing a transmitter mechanism adjacent the container, and automatically detecting whether a tamper condition has occurred. The tamper condition comprises at least one of the following: removal of the life raft from the container; an increase in distance between the first and second container portions; and a change in position of at least a portion of the life raft relative to one of the portions of the container. The transmitter mechanism is adapted and configured to transmit a signal upon the detection of the tamper condition.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: C. Duff Hughes, Frank Hornig, Kevin Brophy
  • Non-aqueous process for the dyeing of dyable materials at an elevated temperature in a non-reactive environment and in a non-aqueous dye solvent
    Patent number: 4828571
    Abstract: The present invention provides a non-aqueous process for the dyeing of a dyeable material at an elevated temperature by contacting a dyeable material with a dye composition at an elevated temperature in a non-reactive environment. The dye composition temperature and the time of contact between the dye composition and the dyeable material are sufficient to effectuate the dyeing of the material. The dye composition comprises a substantially non-aqueous solvent and a dyestuff.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 9, 1989
    Inventors: Ildo E. Pensa, C. Duff Hughes, Nicholas S. Hood, Eugene M. Saunders