Michael G Barger

US Patent:

6513392, Feb 4, 2003

Filed:

Jun 7, 1999

Appl. No.:

09/326949

Inventors:

Michael J. Barger - Souderton PA
Joseph C. Dille - Telford PA
Jeffrey L. Whiteley - Quakertown PA
Timothy W. Scott - Lansdale PA

Assignee:

Emerson Electric Co. - St. Louis MO

International Classification:

G01F 184

US Classification:

73861356

Abstract:

A Coriolis mass flow sensor includes a flow sensor tube, a drive device situated relative to the flow sensor tube so as to cause the flow sensor tube to vibrate, and capacitance displacement gauges situated relative to the flow sensor tube so as to measure the twist in the flow sensor tube due to Coriolis force. In specific embodiments, electromagnetic, electrostatic, acoustic, and/or piezoelectric drives are used to vibrate the flow sensor tube. In still further embodiments, piezoelectric devices are used both to vibrate the flow sensor tube and measure the twist in the flow sensor tube. In accordance with certain embodiments of the invention, the Coriolis mass flow controller further includes an integrated flow control device adapted to receive fluid from the flow sensor tube and provide flow control.

US Patent:

6526839, Mar 4, 2003

Filed:

Nov 1, 1999

Appl. No.:

09/430881

Inventors:

Michael J. Barger - Souderton PA
Joseph C. Dille - Telford PA
Timothy W. Scott - Lansdale PA
Jeffrey L. Whiteley - Quakertown PA

Assignee:

Emerson Electric Co. - St. Louis MO

International Classification:

G01F 184

US Classification:

73861356, 73861354, 73861355

Abstract:

A capacitive pick off sensor for a mass flow measurement device is disclosed. The mass flow measurement device includes a flow sensor tube and a drive device for vibrating the flow sensor tube. The capacitive pick off sensor includes at least one conductive plate connectable to a first voltage potential and adapted to be situated adjacent the flow sensor tube which is connected to a second voltage potential. The conductive plate is positioned relative to the flow sensor tube so as to define a gap therebetween The capacitance between the conductive plate and the flow sensor tube varies due to the relative motion of the conductive plate and the flow sensor tube when the flow sensor tube is vibrated. In other aspects of the present invention, the flow sensor tube is situated in a housing and the drive device is positioned outside the housing for vibrating the flow sensor tube.

US Patent:

6748813, Jun 15, 2004

Filed:

Aug 18, 2000

Appl. No.:

09/641698

Inventors:

Michael J. Barger - Souderton PA
Joseph C. Dille - Telford PA
Timothy W. Scott - Lansdale PA
Jeffrey L. Whiteley - Quakertown PA

Assignee:

Emerson Electric Company - St. Louis MO

International Classification:

G01F 184

US Classification:

73861355, 73861354

Abstract:

A Coriolis mass flow sensor includes a flow tube, a light source positioned adjacent a first side of the flow tube and a light detector positioned adjacent a second side of the flow tube. A drive device is operatively situated relative to the flow tube for vibrating the flow tube, such that the flow tube moves through a path defined between the light source and the light detector. In other aspects of the invention, a Coriolis mass flow sensor includes a flow tube and a frame having the flow tube mounted thereon. A drive device is operatively situated relative to the frame for vibrating the frame and at least one pick off sensor is situated relative to the flow tube so as to measure the twist in the flow tube due to Coriolis force. Other aspects of the invention concern a straight-tube Coriolis mass flow sensor. A flexible flow tube defines a generally linear flow path.

US Patent:

6769301, Aug 3, 2004

Filed:

Jan 27, 2003

Appl. No.:

10/351848

Inventors:

Michael J. Barger - Souderton PA
Joseph C. Dille - Telford PA
Jeffrey L. Whiteley - Quakertown PA
Timothy W. Scott - Lansdale PA

Assignee:

Emerson Electric Co. - St. Louis MO

International Classification:

G01F 184

US Classification:

73356

Abstract:

A Coriolis mass flow sensor includes a flow sensor tube, a drive device situated relative to the flow sensor tube so as to cause the flow sensor tube to vibrate, and capacitance displacement gauges situated relative to the flow sensor tube so as to measure the twist in the flow sensor tube due to Coriolis force. In specific embodiments, electromagnetic, electrostatic, acoustic, and/or piezoelectric drives are used to vibrate the flow sensor tube. In still further embodiments, piezoelectric devices are used both to vibrate the flow sensor tube and measure the twist in the flow sensor tube. In accordance with certain embodiments of the invention, the Coriolis mass flow controller further includes an integrated flow control device adapted to receive fluid from the flow sensor tube and provide flow control.

US Patent:

7032462, Apr 25, 2006

Filed:

Feb 12, 2003

Appl. No.:

10/365023

Inventors:

Michael J. Barger - Souderton PA, US
Joseph C. Dille - Telford PA, US
Timothy W. Scott - Lansdale PA, US
Jeffrey L. Whiteley - Quakertown PA, US

Assignee:

Emerson Electric Co. - St. Louis MO

International Classification:

G01F 1/84

US Classification:

73861355

Abstract:

A mass flow measurement device includes a flow sensor tube and a housing having the flow sensor tube situated therein. A drive device is positioned outside the housing for vibrating the flow sensor tube, and at least one pick off sensor is situated relative to the flow sensor tube so as to measure the twist in the flow sensor tube due to Coriolis force. Another mass flow measurement device includes an enclosure having first and second ends. A first sealing member is situated relative to the enclosure first end and a flow body such that the flow body and the first end are connected in a sealed manner. A second sealing member is situated relative to the enclosure second end and a user interface assembly such that the user interface assembly and the second end are connected in a sealed manner.

US Patent:

D4368762, Jan 30, 2001

Filed:

Nov 1, 1999

Appl. No.:

D/113227

Inventors:

Michael J. Barger - Souderton PA
Joseph C. Dille - Telford PA
Abe Liebson - New Hope PA
Jeffrey L. Whiteley - Quakertown PA
Timothy W. Scott - Lansdale PA

Assignee:

Micro Motion, Inc. - Boulder CO

International Classification:

1004

US Classification:

D10 96