Patents by Inventor Wesley E. Sund

Wesley E. Sund 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).

  • Pressure transducer with external heater
    Patent number: 7347099
    Abstract: An improved pressure transducer is disclosed. The transducer includes a connector, an enclosure, a sensor portion, and an external heater disposed to heat the sensor portion. In some aspects, the sensor portion includes a sensor constructed from a brittle material and does not employ any fill fluid within the sensor. In another aspect, the invention includes a kit that adapts non-heated high purity vacuum transducers for heated use. The kit includes a connector portion and a heater portion that is coupled to the connector portion. The connector portion may also include one or more indicators.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: March 25, 2008
    Assignee: Rosemount Inc.
    Inventors: Wesley E. Sund, Christina A. Nord, Fred C. Sittler, John McIntire
  • High purity fluid delivery system
    Patent number: 7114517
    Abstract: A fluid delivery system includes a flow control device and a Coriolis mass flowmeter in fluid communication with the flow control device. The Coriolis flowmeter has a flow-tube made of a high-purity plastic material, such as PFA, making the delivery system suitable for high purity applications. A controller provides a control output signal to the flow control device, which may comprise a pinch valve, so as to vary the flow control device output in response to a setpoint signal and measurement signals received from the flowmeter.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 3, 2006
    Inventors: Wesley E. Sund, Joseph C. Dille, Michael J. Barger, Gary E. Pawlas
  • High purity coriolis mass flow controller
    Patent number: 6606917
    Abstract: A mass flow measurement and control device includes an enclosure with a Coriolis mass flowmeter situated therein. The Coriolis mass flowmeter has a flow-tube made of a high-purity plastic material, a driver coupled to the flow tube for vibrating the flow tube, and a pickoff coupled to the flow tube for sensing Coriolis deflections of the vibrating flow tube. A pinch valve includes an elastomeric tube made of a high-purity plastic material in fluid communication with the flow tube. An actuator with a ram operatively connected thereto is situated adjacent the elastomeric tube, and a reference surface is positioned generally opposite the ram such that the elastomeric tube is squeezable between the ram and the reference surface. A controller may also be provided, which receives an output signal from the Coriolis flowmeter and provides a control output signal to the pinch valve actuator in response to the flowmeter output signal and a setpoint signal.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: August 19, 2003
    Assignee: Emerson Electric Co.
    Inventors: Wesley E. Sund, Daniel P. McNulty, Timothy W. Scott, Matthew G. Wheeler, Jeffrey L. Whiteley, Joseph C. Dille, Michael J. Barger, Gary E. Pawlas
  • HIGH PURITY CORIOLIS MASS FLOW CONTROLLER
    Publication number: 20030097884
    Abstract: A mass flow measurement and control device includes an enclosure with a Coriolis mass flowmeter situated therein. The Coriolis mass flowmeter has a flow-tube made of a high-purity plastic material, a driver coupled to the flow tube for vibrating the flow tube, and a pickoff coupled to the flow tube for sensing Coriolis deflections of the vibrating flow tube. A pinch valve includes an elastomeric tube made of a high-purity plastic material in fluid communication with the flow tube. An actuator with a ram operatively connected thereto is situated adjacent the elastomeric tube, and a reference surface is positioned generally opposite the ram such that the elastomeric tube is squeezable between the ram and the reference surface. A controller may also be provided, which receives an output signal from the Coriolis flowmeter and provides a control output signal to the pinch valve actuator in response to the flowmeter output signal and a setpoint signal.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 29, 2003
    Inventors: Wesley E. Sund, Daniel P. McNulty, Timothy W. Scott, Matthew G. Wheeler, Jeffrey L. Whiteley, Joseph C. Dille, Michael J. Barger, Gary E. Pawlas
  • High purity fluid delivery system
    Publication number: 20030098069
    Abstract: A fluid delivery system includes a flow control device and a Coriolis mass flowmeter in fluid communication with the flow control device. The Coriolis flowmeter has a flow-tube made of a high-purity plastic material, such as PFA, making the delivery system suitable for high purity applications. A controller provides a control output signal to the flow control device, which may comprise a pinch valve, so as to vary the flow control device output in response to a setpoint signal and measurement signals received from the flowmeter.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 29, 2003
    Inventors: Wesley E. Sund, Joseph C. Dille, Michael J. Barger, Gary E. Pawlas
  • High purity fluid delivery system
    Patent number: RE43288
    Abstract: A fluid delivery system includes a flow control device and a Coriolis mass flowmeter in fluid communication with the flow control device. The Coriolis flowmeter has a flow-tube made of a high-purity plastic material, such as PFA, making the delivery system suitable for high purity applications. A controller provides a control output signal to the flow control device, which may comprise a pinch valve, so as to vary the flow control device output in response to a setpoint signal and measurement signals received from the flowmeter.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: April 3, 2012
    Assignee: Emerson Electric Co.
    Inventors: Wesley E. Sund, Joseph C. Dille, Michael J. Barger, Gary E. Pawlas