Patents by Inventor Roger Frank Duckworth

Roger Frank Duckworth 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).

  • Apparatus for tying wire around one or more objects
    Patent number: 11473322
    Abstract: An apparatus for tying a wire around one or more objects, such as concrete reinforcing includes a wire feed roller configured to pass a wire around the objects to form a loop, a wire twister configured to twist the sides of the loop together, and a guiding surface arranged to deflect the wire as it is being twisted so that the ends of the wire finish pointing at least partially in the direction of the objects being tied.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 18, 2022
    Assignee: HUSQVARNA AB
    Inventors: Ian David Coles, Graham Frank Barnes, Paul Anthony Goater, Matthew John Wilson, Roger Frank Duckworth
  • APPARATUS FOR TYING WIRE AROUND ONE OR MORE OBJECTS
    Publication number: 20190203486
    Abstract: An apparatus for tying a wire around one or more objects, such as concrete reinforcing includes a wire feed roller configured to pass a wire around the objects to form a loop, a wire twister configured to twist the sides of the loop together, and a guiding surface arranged to deflect the wire as it is being twisted so that the ends of the wire finish pointing at least partially in the direction of the objects being tied.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Inventors: Ian David Coles, Graham Frank Bames, Paul Anthony Goater, Matthew John Wilson, Roger Frank Duckworth
  • Object binding
    Patent number: 10240355
    Abstract: An apparatus for tying a wire 46; 52 around one or more objects such as concrete reinforcing bars 2 is disclosed. It comprises means for passing the wire 46; 52 in a loop around the bars and a rotatable head 4 for twisting the ends of the loop together. The head 4 has at least one gripping means such as a variable force clutch 32 for gripping the wire, the gripping means being adapted to provide a variable gripping force so as to apply a predetermined tension to the wire during at least a first phase of twisting. Also disclosed is pre-feeding the wire between tying operations; conditioning the surface of the wire; and using the electrical conductivity of the reinforcing bars to verify that the bars are present before tying.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 26, 2019
    Assignee: Construction Tools PC AB
    Inventors: Ian David Coles, Graham Frank Barnes, Paul Anthony Goater, Matthew John Wilson, Roger Frank Duckworth
  • OBJECT BINDING
    Publication number: 20170145704
    Abstract: An apparatus for tying a wire 46; 52 around one or more objects such as concrete reinforcing bars 2 is disclosed. It comprises means for passing the wire 46; 52 in a loop around the bars and a rotatable head 4 for twisting the ends of the loop together. The head 4 has at least one gripping means such as a variable force clutch 32 for gripping the wire, the gripping means being adapted to provide a variable gripping force so as to apply a predetermined tension to the wire during at least a first phase of twisting. Also disclosed is pre-feeding the wire between tying operations; conditioning the surface of the wire; and using the electrical conductivity of the reinforcing bars to verify that the bars are present before tying.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventors: Ian David Coles, Graham Frank Barnes, Paul Anthony Goater, Matthew John Wilson, Roger Frank Duckworth
  • Object binding
    Patent number: 9593496
    Abstract: An apparatus for tying a wire (46, 52) around one or more objects such as concrete reinforcing bars (2) is disclosed. It comprises means for passing the wire (46, 52) in a loop around the bars and a rotatable head 4 for twisting the ends of the loop together. The head (4) has at least one gripping means such as a variable force clutch (32) for gripping the wire, the gripping means being adapted to provide a variable gripping force so as to apply a predetermined tension to the wire during at least a first phase of twisting. Also disclosed is pre-feeding the wire between tying operations; conditioning the surface of the wire; and using the electrical conductivity of the reinforcing bars to verify that the bars are present before tying.
    Type: Grant
    Filed: October 9, 2006
    Date of Patent: March 14, 2017
    Assignee: CONSTRUCTION TOOLS PC AB
    Inventors: Ian David Coles, Graham Frank Barnes, Paul Anthony Goater, Matthew John Wilson, Roger Frank Duckworth
  • OBJECT BINDING
    Publication number: 20110155277
    Abstract: An apparatus for tying a wire (46, 52) around one or more objects such as concrete reinforcing bars (2) is disclosed. It comprises means for passing the wire (46, 52) in a loop around the bars and a rotatable head 4 for twisting the ends of the loop together. The head (4) has at least one gripping means such as a variable force clutch (32) for gripping the wire, the gripping means being adapted to provide a variable gripping force so as to apply a predetermined tension to the wire during at least a first phase of twisting. Also disclosed is pre-feeding the wire between tying operations; conditioning the surface of the wire; and using the electrical conductivity of the reinforcing bars to verify that the bars are present before tying.
    Type: Application
    Filed: October 9, 2006
    Publication date: June 30, 2011
    Inventors: Ian David Coles, Graham Frank Barnes, Paul Antony Goater, Matthew John Wilson, Roger Frank Duckworth