Patents Assigned to T&R Solutions, Inc.
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Patent number: 6488263Abstract: A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths. A valve packing comprises a vertically stacked array comprising alternating metal pressure rings and graphite seals.Type: GrantFiled: April 19, 2001Date of Patent: December 3, 2002Assignee: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6386230Abstract: A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve stem for rotation with the valve member. At least one sensor is positioned for actuation by the magnet to indicate that the valve member is in its fully closed position.Type: GrantFiled: June 29, 2001Date of Patent: May 14, 2002Assignee: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Publication number: 20010052363Abstract: A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve stem for rotation with the valve member. At least one sensor is positioned for actuation by the magnet to indicate that the valve member is in its fully closed position.Type: ApplicationFiled: June 29, 2001Publication date: December 20, 2001Applicant: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6276393Abstract: A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve stem for rotation with the valve member. At least one sensor is positioned for actuation by the magnet to indicate that the valve member is in its fully closed position.Type: GrantFiled: January 29, 2001Date of Patent: August 21, 2001Assignee: T&R Solutions, Inc.Inventor: Raoul W. Robert
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Publication number: 20010013585Abstract: A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths. A valve packing comprises a vertically stacked array comprising alternating metal pressure rings and graphite seals.Type: ApplicationFiled: April 19, 2001Publication date: August 16, 2001Applicant: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6250604Abstract: A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths. A valve packing comprises a vertically stacked array comprising alternating metal pressure rings and graphite seals.Type: GrantFiled: March 31, 2000Date of Patent: June 26, 2001Assignee: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6195890Abstract: A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths.Type: GrantFiled: October 13, 1999Date of Patent: March 6, 2001Assignee: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6182690Abstract: A butterfly valve comprises a valve housing, a valve member mounted within the valve housing, and a valve stem supporting the valve member within the valve housing for rotation between open and closed positions. At least one magnet is mounted on the valve stem for rotation with the valve member. At least one sensor is positioned for actuation by the magnet to indicate that the valve member is in its fully closed position.Type: GrantFiled: March 31, 2000Date of Patent: February 6, 2001Assignee: T&R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 6068018Abstract: A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths.Type: GrantFiled: March 2, 1998Date of Patent: May 30, 2000Assignee: T & R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 5931044Abstract: A torque/position transducer is positioned between the valve stem of a valve and a valve operator and includes a body section including an input lug mated with the output lug of the valve operator and an output lug mated with the valve stem of the valve. Strain gauges mounted on the body generate an output signal indicate of the amount of torque necessary to open or close the valve. A magneto-resistive sensor generates a signal indicative of the position of the valve stem with respect to the valve. In another embodiment, the strain gauges are mounted on the valve stem.Type: GrantFiled: December 1, 1997Date of Patent: August 3, 1999Assignee: T&R Solutions, Inc.Inventor: Raoul W. Robert
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Patent number: 5722286Abstract: A torque/position transducer is positioned between the valve stem of a valve and a valve operator adapted to open and close the valve and includes a body section including an input lug adapted for mating the engagement with the output lug of the valve operator and an output lug adapted for mating the engagement with the valve stem of the valve. A pair of strain gauges are mounted on the body of the torque/position transducer and function to generate an output signal indicative of the amount of torque necessary to open or close the valve. The body further includes a cam secured to the body section. A magnet is positioned in movable contact with the cam. A magneto-resistive sensor senses the movement of the magnet as the cam varies the distance from said magnet to said sensor and generates a signal indicative of the position of the valve stem with respect to the valve under the action of the valve operator.Type: GrantFiled: June 10, 1996Date of Patent: March 3, 1998Assignee: T & R Solutions, Inc.Inventors: Raoul W. Robert, Thomas Rogan Bernard, Jan Mark Bullock, Ronald H. Drushel