Patents by Inventor Peter Arno Stonebridge

Peter Arno Stonebridge 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: 9649186
    Abstract: A tubular conduit comprising: a tubular portion made from a flexible material. There is an external helical formation extending around the exterior of, and parallel to the axis of, the tubular portion and defining a first region of the tubular portion. The external helical formation is for supporting the tubular portion. There is also an internal helical formation, protruding inwardly of the interior of the tubular portion and extending parallel to the axis of the tubular portion and defining a second region of the tubular portion. The internal helical formation is for imparting helical flow on fluid passing through the tubular portion. The first region does not extend throughout the second region.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 16, 2017
    Assignee: Vascular Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge
  • Publication number: 20150265393
    Abstract: A vascular access graft comprises an elongate conduit having proximal and distal ends. At least a portion of the elongate conduit has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft also comprises a helical fin projecting inwardly from the inner surface of the elongate conduit and extending parallel to the axis of the elongate conduit.
    Type: Application
    Filed: May 27, 2015
    Publication date: September 24, 2015
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Patent number: 9067026
    Abstract: A vascular access graft (1) comprises an elongate conduit (2) having proximal and distal ends (3, 4). At least a portion of the elongate conduit (2) has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft (1) also comprises a helical fin (6) projecting inwardly from the inner surface (5) of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2).
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 30, 2015
    Assignee: Vascular Flow Technologies Limited
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Publication number: 20130282108
    Abstract: A tubular conduit comprising: a tubular portion made from a flexible material. There is an external helical formation extending around the exterior of, and parallel to the axis of, the tubular portion and defining a first region of the tubular portion. The external helical formation is for supporting the tubular portion. There is also an internal helical formation, protruding inwardly of the interior of the tubular portion and extending parallel to the axis of the tubular portion and defining a second region of the tubular portion. The internal helical formation is for imparting helical flow on fluid passing through the tubular portion. The first region does not extend throughout the second region.
    Type: Application
    Filed: June 17, 2013
    Publication date: October 24, 2013
    Inventors: John Graeme Houston, Peter Arno Stonebridge
  • Patent number: 8454675
    Abstract: An internal formation for a conduit. The formation has a longitudinally extending member adapted to extend along an inside surface of at least a portion of the length of the conduit. The longitudinally extending member has an asymmetric profile in a direction transverse of the longitudinal axis of the member.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: June 4, 2013
    Assignee: Tayside Flow Technologies Ltd.
    Inventors: John Graeme Houston, Robert Gordon Hood, Peter Arno Stonebridge, John Bruce Cameron Dick
  • Publication number: 20120130314
    Abstract: A vascular access graft (1) comprises an elongate conduit (2) having proximal and distal ends (3, 4). At least a portion of the elongate conduit (2) has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft (1) also comprises a helical fin (6) projecting inwardly from the inner surface (5) of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2).
    Type: Application
    Filed: May 19, 2010
    Publication date: May 24, 2012
    Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Patent number: 8021415
    Abstract: There is disclosed an insert (2) for a conduit (4) adapted to effect helical flow in the conduit (4) comprising a longitudinally extending member having a helical formation.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 20, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7968036
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: June 28, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Publication number: 20100298924
    Abstract: A tubular graft (1) comprises an elongate conduit (2) having distal and proximal ends (3, 4). The tubular graft (1) also comprises a helical fin (10) projecting inwardly from the inner surface of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2). The helical fin (10) extends from the distal end (3) of the elongate conduit (2) to a point (11) short of the proximal end (4) of the elongate conduit (2).
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Robert Gordon Hood, Peter Arno Stonebridge
  • Publication number: 20100198337
    Abstract: A helical formation within a conduit and a method of determining the helix angle of the helical formation are disclosed. The method includes specifying the internal dimensions of the conduit and an intended fluid mass flow through the conduit. The helix angle is determined from the pressure drop and the turbulent kinetic energy for a conduit having the specified internal dimensions and intended fluid mass flow.
    Type: Application
    Filed: April 8, 2010
    Publication date: August 5, 2010
    Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.
    Inventors: John Graeme Houston, Robert Gordon Hood, Peter Arno Stonebridge, Allan Thomson
  • Patent number: 7721767
    Abstract: A Method of Determining the Helix Angle of a Helical Formation for a Conduit. A method of determining the helix angle of a helical formation (4) within a conduit (1). The method includes specifying the internal dimensions of the conduit (1) and an intended fluid mass flow through the conduit (1). The helix angle is determined from the pressure drop and the turbulent kinetic energy for a conduit (1) having the specified internal dimensions and intended fluid mass flow.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: May 25, 2010
    Assignee: Tayside Flow Technologies Ltd.
    Inventors: John Graeme Houston, Robert Gordon Hood, Peter Arno Stonebridge, Allan Thomson
  • Patent number: 7503226
    Abstract: A method of assessing the effect of a conduit section (11) on flow characteristics of a first fluid in a first conduit system (1). A first fluid is caused to flow through the first conduit system (1). A transverse flow parameter of the first fluid in the first conduit system (1) downstream of the conduit section (11) is detected. At least one transverse flow characteristic of the first fluid is determined from the detected transverse flow parameter. The effect of the conduit section (11) is then assessed from the determined flow characteristics.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: March 17, 2009
    Assignee: Tayside Flow Technologies Ltd
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Publication number: 20080319536
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Application
    Filed: April 10, 2008
    Publication date: December 25, 2008
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7331989
    Abstract: There is disclosed an insert (2) for a conduit (4) adapted to effect helical flow in the conduit (4) comprising a longitudinally extending member having a helical formation.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: February 19, 2008
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7185677
    Abstract: A helical formation (2) for a conduit (1). The helical formation (2) comprises an elongate member defining at least a portion of a helix, the elongate member comprising two inwardly extending portions (6, 7). The inwardly extending portions (6, 7) are spaced from each other and extend along the length of the elongate member in side-by-side relationship.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: March 6, 2007
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Robert Gordon Hood, John Bruce Cameron Dick, Craig McLeod Duff, Allana Johnstone, Christophe Emmanuel Sarran, Peter Arno Stonebridge
  • Patent number: D522654
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: June 6, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Patent number: D524442
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: July 4, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Patent number: D526718
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: August 15, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Patent number: D527104
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: August 22, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Patent number: D567946
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: April 29, 2008
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood