George A Lewis

US Patent:

7607347, Oct 27, 2009

Filed:

Nov 10, 2006

Appl. No.:

11/595494

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. Labarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

Gems Sensors, Inc. - Plainville CT

International Classification:

G01F 23/28

US Classification:

73290V

Abstract:

A fluid detector includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. A housing is integral with an outer surface of the wall of a container and defines a cylindrical central bore for receiving the lens. The piezoelectric element is coupled to the upper portion of the lens so that the lens focuses the first ultrasonic signal toward the wall so that it enters the wall. An ultrasonic detector is disposed adjacent the outer surface of the wall, for receiving a second ultrasonic signal from the wall that results from the first ultrasonic signal and that is affected by the presence or absence of fluid. The ultrasonic detector generates an output electrical signal corresponding to the second ultrasonic signal.

US Patent:

7770447, Aug 10, 2010

Filed:

Apr 21, 2008

Appl. No.:

12/106371

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. LaBarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

Gem Sensors, Inc. - Plainville CT

International Classification:

G01F 23/28

US Classification:

73290V

Abstract:

A fluid detector for determining a presence of a fluid within a container includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. The piezoelectric element is coupled to the upper portion of the lens so that, when the lens is disposed adjacent the outer surface of the wall such that the lens is intermediate the piezoelectric element and the wall, the lens focuses the first ultrasonic signal toward the wall so that the first ultrasonic signal enters the wall.

US Patent:

7946169, May 24, 2011

Filed:

Sep 21, 2009

Appl. No.:

12/563380

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. LaBarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

Gems Sensors, Inc. - Plainville CT

International Classification:

G01F 23/28

US Classification:

73290V

Abstract:

A fluid detector includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. A housing is integral with an outer surface of the wall of a container and defines a cylindrical central bore for receiving the lens. The piezoelectric element is coupled to the upper portion of the lens so that the lens focuses the first ultrasonic signal toward the wall so that it enters the wall. An ultrasonic detector is disposed adjacent the outer surface of the wall, for receiving a second ultrasonic signal from the wall that results from the first ultrasonic signal and that is affected by the presence or absence of fluid. The ultrasonic detector generates an output electrical signal corresponding to the second ultrasonic signal.

US Patent:

7360417, Apr 22, 2008

Filed:

Jan 10, 2005

Appl. No.:

11/032976

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. Labarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

Gems Sensors, Inc. - Plainville CT

International Classification:

G01F 23/00
G01S 15/00

US Classification:

73290R, 73290 V, 367 93, 367908

Abstract:

A fluid detector for determining a presence of a fluid within a container includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. The piezoelectric element is coupled to the upper portion of the lens so that, when the lens is disposed adjacent the outer surface of the wall such that the lens is intermediate the piezoelectric element and the wall, the lens focuses the first ultrasonic signal toward the wall so that the first ultrasonic signal enters the wall.

US Patent:

20100294034, Nov 25, 2010

Filed:

Aug 4, 2010

Appl. No.:

12/850015

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. Labarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

GEMS SENSORS, INC. - Plainville CT

International Classification:

G01F 23/296

US Classification:

73290 V

Abstract:

A transducer for use in a fluid detector for determining a presence of a fluid within a container, the transducer comprising a piezoelectric element that outputs an ultrasonic signal in response to an input electrical signal, characterized in that said transducer further comprises, a lens with an upper portion, a lower portion, and a focal point, the upper portion including a curved surface with convex side. The piezoelectric element is coupled to the upper portion of the lens so that, when the lens is disposed adjacent an outer surface of a wall of the container such that the lens is intermediate the piezoelectric element and the wall, the lens focuses the ultrasonic signal toward the focal point of the lens and on the inner surface of the wall.

US Patent:

20110219871, Sep 15, 2011

Filed:

May 23, 2011

Appl. No.:

13/113512

Inventors:

James B. Dockendorff - North Haven CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. LaBarge - Terryville CT, US
George K. Lewis - Andover MA, US

Assignee:

GEMS SENSORS, INC. - Plainville CT

International Classification:

G01F 23/296

US Classification:

73290 V

Abstract:

A fluid detector for determining a presence of a fluid within a container, the detector including a sensor assembly with a lens and a sensor element that outputs a first ultrasonic signal in response to an input electrical signal. A generally cylindrical wall extends outwardly from an outer surface of the container and defines a housing with a cylindrical central bore having a base surface. The sensor assembly is coupled to the lens so that the lens focuses the first ultrasonic signal toward the wall. The sensor assembly is positioned such that it receives a second ultrasonic signal from the wall that results from the first ultrasonic signal. The sensor assembly then generates an output electrical signal corresponding to the second ultrasonic signal.

US Patent:

44921209, Jan 8, 1985

Filed:

Mar 18, 1983

Appl. No.:

6/476671

Inventors:

George K. Lewis - Wyckoff NJ
Franklin K. Sun - Tenafly NJ
Douglas L. Keene - Central Valley NY
Howard F. Fidel - Hartsdale NY

Assignee:

Irex Corporation - Ramsey NJ

International Classification:

G01N 2900

US Classification:

73625

Abstract:

A transducer assembly is provided which performs simultaneous imaging and flow measurement. Separate imaging and Doppler transducers are mounted on one face of the assembly. Each transducer type is backed by backing material which provides damping in accordance with the performance criteria of the different transducer types. The transducer types may be mechanically focused in the same direction so that flow measurements are made in the center of the area being imaged.

US Patent:

20180045552, Feb 15, 2018

Filed:

Apr 24, 2017

Appl. No.:

15/495379

Inventors:

- Plainville CT, US
Kevin B. Downs - Coventry CT, US
Bryan M. LaBarge - Terryville CT, US
George K. Lewis - Andover MA, US

International Classification:

G01F 23/296
G01V 1/00
B65D 85/00

Abstract:

A fluid detector for determining a presence of a fluid within a container, the detector including a sensor assembly with a lens and a sensor element that outputs a first ultrasonic signal in response to an input electrical signal. A generally cylindrical wall extends outwardly from an outer surface of the container and defines a housing with a cylindrical central bore having a base surface. The sensor assembly is coupled to the lens so that the lens focuses the first ultrasonic signal toward the wall. The sensor assembly is positioned such that it receives a second ultrasonic signal from the wall that results from the first ultrasonic signal. The sensor assembly then generates an output electrical signal corresponding to the second ultrasonic signal.

Author:

George E. Lewis

ISBN #:

0226476952

Author:

George E. Lewis

ISBN #:

0124471803

Author:

George N. Lewis

ISBN #:

0815709536

Author:

George N. Lewis

ISBN #:

0815709544

Author:

George A. Lewis

ISBN #:

0870516035

Author:

George C. Lewis

ISBN #:

0405055102

Author:

George Elmer Lewis

ISBN #:

0836956060

Author:

George Spencer Lewis

ISBN #:

0937771007