Christopher L Laird

US Patent:

6973833, Dec 13, 2005

Filed:

Mar 12, 2002

Appl. No.:

10/107852

Inventors:

Donald Ginesi - Lakeland FL, US
Donald R. Augenstein - Pittsburgh PA, US
Keith Bergstrom - Herminie PA, US
Calvin R. Hastings - Pittsburgh PA, US
Christopher B. Laird - Pittsburgh PA, US
Benjamin Lane - Phoenix MD, US
Brian Lipford - Bel Air MD, US

Assignee:

Caldon, Inc. - Pittsburgh PA

International Classification:

G01H001/00
G01H011/00
G01M001/22
G01F001/32
G01F001/42

US Classification:

73660, 7386161, 7386123

Abstract:

A wafer for placement in a pipe. The wafer includes a housing having an outer surface and an orifice adapted to allow fluid flowing in the pipe to pass through the housing. The housing has at least a first port extending into the housing from the outer surface for holding a first acoustic transducer. The wafer includes means for attaching the housing to the pipe. A method for obtaining information about fluid in a pipe.

US Patent:

8347733, Jan 8, 2013

Filed:

Oct 25, 2010

Appl. No.:

12/925558

Inventors:

Christopher B. Laird - Pittsburgh PA, US
Gregor Brown - Scotland, GB

Assignee:

Cameron International Corporation - Houston TX

International Classification:

G01F 1/66

US Classification:

7386128

Abstract:

The present invention pertains to a flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter and defines an envelope in a cross sectional direction in a pipe having a first ramp adapted to be disposed in the pipe and extending from the outside of the envelope inward toward the center of the pipe in a downstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. The conditioner has a second ramp adapted to be disposed in the pipe and in juxtaposition with the first ramp, the second ramp extending from the outside of the envelope inward toward the center of the pipe in an upstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. An apparatus for determining fluid flow in a pipe having ultrasonic transducer sites. A method for determining fluid flow in a pipe.

US Patent:

20150211553, Jul 30, 2015

Filed:

Apr 10, 2015

Appl. No.:

14/683958

Inventors:

Christopher B. Laird - Pittsburgh PA, US
Gregor Brown - Prestwick, GB

Assignee:

CAMERON INTERNATIONAL CORPORATION - Houston TX

International Classification:

F15D 1/02
F15D 1/06
G01F 1/66

Abstract:

The present invention pertains to a flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter and defines an envelope in a cross sectional direction in a pipe having a first ramp adapted to be disposed in the pipe and extending from the outside of the envelope inward toward the center of the pipe in a downstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. The conditioner has a second ramp adapted to be disposed in the pipe and in juxtaposition with the first ramp, the second ramp extending from the outside of the envelope inward toward the center of the pipe in an upstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. An apparatus for determining fluid flow in a pipe having ultrasonic transducer sites. A method for determining fluid flow in a pipe. A method for affecting fluid flow in a pipe.

US Patent:

20140190272, Jul 10, 2014

Filed:

Jan 4, 2013

Appl. No.:

13/734705

Inventors:

Christopher B. Laird - Pittsburgh PA, US
Gregor Brown - Scotland, GB

International Classification:

G01F 1/66

US Classification:

7386128, 366337

Abstract:

The present invention pertains to a flow conditioner for displacing and mixing fluid flow to minimize the effects of thermal gradients on the accuracy of a transit time ultrasonic flowmeter and defines an envelope in a cross sectional direction in a pipe having a first ramp adapted to be disposed in the pipe and extending from the outside of the envelope inward toward the center of the pipe in a downstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. The conditioner has a second ramp adapted to be disposed in the pipe and in juxtaposition with the first ramp, the second ramp extending from the outside of the envelope inward toward the center of the pipe in an upstream direction with respect to the fluid flow and forming an angle between 0 and 90 relative to the pipe's inner surface. An apparatus for determining fluid flow in a pipe having ultrasonic transducer sites. A method for determining fluid flow in a pipe. A method for affecting fluid flow in a pipe.