Patents by Inventor Martin Urquhart

Martin Urquhart 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: 8474538
    Abstract: A connector assembly that can be used to connect a tension ring to a telescoping joint on a riser by using a lower set of hydraulically actuated dogs. A set of hydraulically actuated hang-off dogs on the connector assembly can be used to connect the tension ring to a diverter housing mounted on a rig. To prevent accidental disengagement of the hang-off dogs, a hydraulically actuated lock ring is used to provide a positive stop against the back of the hang-off dogs.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: July 2, 2013
    Assignee: Vetco Gray Inc.
    Inventors: David Andrew Wallace, Martin Urquhart
  • Publication number: 20120070225
    Abstract: A connector assembly that can be used to connect a tension ring to a telescoping joint on a riser by using a lower set of hydraulically actuated dogs. A set of hydraulically actuated hang-off dogs on the connector assembly can be used to connect the tension ring to a diverter housing mounted on a rig. To prevent accidental disengagement of the hang-off dogs, a hydraulically actuated lock ring is used to provide a positive stop against the back of the hang-off dogs.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Applicant: VETCO GRAY INC.
    Inventors: David Andrew Wallace, Martin Urquhart
  • Patent number: 6375801
    Abstract: In manufacturing a moving web, such as a tissue sheet, the web is transported at very high speeds, often in an unsupported manner, which can result in unstable operations regarding handling and winding of the web. This is particularly true in the region between the creping blade and the reel for a lightweight, low modulus tissue sheet that is characteristic of a high-quality, soft tissue basesheet. To provide an improved means of controlling the tissue web during manufacture and to improve the manufacturing rate, an apparatus and method of stabilizing the moving web that incorporates a creping blade foil, one or more aerodynamic sheet stabilizing foils, and a roll foil in a specific relationship to each other is disclosed. This method has been shown to improve the stability of a moving tissue web, allow for a higher rate of operation, and enable the production of softer tissue basesheets.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: April 23, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stephen Percival John McGary, Scott A. Baum, Paul Douglas Beuther, Robert Paul Guarnotta, Richard Martin Urquhart
  • Publication number: 20020005264
    Abstract: In manufacturing a moving web, such as a tissue sheet, the web is transported at very high speeds, often in an unsupported manner, which can result in unstable operations regarding handling and winding of the web. This is particularly true in the region between the creping blade and the reel for a lightweight, low modulus tissue sheet that is characteristic of a high-quality, soft tissue basesheet. To provide an improved means of controlling the tissue web during manufacture and to improve the manufacturing rate, an apparatus and method of stabilizing the moving web that incorporates a creping blade foil, one or more aerodynamic sheet stabilizing foils, and a roll foil in a specific relationship to each other is disclosed. This method has been shown to improve the stability of a moving tissue web, allow for a higher rate of operation, and enable the production of softer tissue basesheets.
    Type: Application
    Filed: September 5, 2001
    Publication date: January 17, 2002
    Inventors: Stephen Percival John McGary, Scott A. Baum, Paul Douglas Beuther, Robert Paul Guarnotta, Richard Martin Urquhart
  • Patent number: 6328852
    Abstract: In manufacturing a moving web, such as a tissue sheet, the web is transported at very high speeds, often in an unsupported manner, which can result in unstable operations regarding handling and winding of the web. This is particularly true in the region between the creeping blade and the reel for a lightweight, low modulus tissue sheet that is characteristic of a high-quality, soft tissue base sheet. To provide an improved means of controlling the tissue web during manufacture and to improve the manufacturing rate, an apparatus and method of stabilizing the moving web that incorporates a creeping blade foil, one or more aerodynamic sheet stabilizing foils, and a roll foil in a specific relationship to each other is disclosed. This method has been shown to improve the stability of a moving tissue web, allow for a higher rate of operation, and enable the production of softer tissue basesheets.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: December 11, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Stephen Percival John McGary, Scott A. Baum, Paul Douglas Beuther, Robert Paul Guarnotta, Richard Martin Urquhart
  • Patent number: 6294051
    Abstract: An apparatus and method for forming a thin fibrous mat, such as a tissue sheet, with improved edge strength is disclosed. The apparatus includes a headbox having a top, a bottom, a pair of lateral sides, a back with an inlet formed therein and a front with an outlet formed therein. A first conduit is connected to the inlet of the headbox and flow therethrough is regulated to convey a first aqueous slurry at a desired flow rate into the headbox. The first aqueous slurry has a predetermined fiber consistency. A second conduit is connected to one of the lateral sides of the headbox and a second aqueous slurry is directed therethrough into the headbox at a different flow rate than through the first conduit. The apparatus also includes a mechanism for drying or draining water from the aqueous slurry exiting the outlet to form a thin fibrous mat. The thin fibrous mat has increased strength adjacent to an edge located downstream from the second conduit.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: September 25, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard Martin Urquhart, Paul Douglas Beuther