Christopher P Thomson

US Patent:

6563064, May 13, 2003

Filed:

Dec 21, 2000

Appl. No.:

09/745251

Inventors:

Amjed Shafique - Chicago IL
Christopher J. Thomson - Palatine IL

Assignee:

ITT Manufacturing Enterprises, Inc. - Wilmington DE

International Classification:

H01H 3502

US Classification:

200 819R, 200 81 R, 200 81 H

Abstract:

A fluid flow switch sensing device includes a switch, a pivotally disposed bracket assembly which activates the switch to a desired switch function, and a paddle assembly for causing pivotal movement of the bracket assembly in response to fluid flow in a conduit. A button assembly, cooperatively associated with the bracket assembly, is provided for external manual actuation and deactuation of the fluid flow switch sensing device.

US Patent:

7161492, Jan 9, 2007

Filed:

Dec 2, 2004

Appl. No.:

11/004660

Inventors:

John E. Branzell - Skokie IL, US
Christopher J. Thomson - Palatine IL, US

Assignee:

ITT Industries - Chicago IL

International Classification:

G08B 21/00

US Classification:

340620, 340615, 340618, 73290 R, 137558, 137392

Abstract:

A device, having a container for holding a fluid moving therein and a conductance probe installed therein for providing a conductance signal indicating whether it is in contact with the fluid, features a jiggler arrangement having a jiggler arranged on the conductance probe so as to form a mechanical self-cleaning conductance probe, which responds to movement of the fluid, for wiping the conductance probe to keep deposits from building up on the conductance probe. The jiggler arrangement may include one or more grooves thereon so that the jiggler can be loosely fitted on the tip between one or more retaining rings arranged in the one or more grooves. The jiggler arrangement may include one or more retaining rings snap-fit on the tip for loosely arranging and retaining the jiggler on the tip.

US Patent:

7275429, Oct 2, 2007

Filed:

Apr 6, 2005

Appl. No.:

11/101179

Inventors:

John E. Branzell - Skokie IL, US
Christopher J. Thomson - Palatine IL, US

Assignee:

ITT Manufacturing Enterprises Inc. - Wilmington DE

International Classification:

G01F 23/26

US Classification:

73304R, 73295, 73290 R, 15 971

Abstract:

A conductance probe is provided for adapting in a device having a container for holding a fluid therein. The a conductance probe is installed therein for providing a conductance signal indicating whether it is in contact with the fluid. The conductance probe features a conductance probe cleaner having a temperature sensitive element arranged on a tip thereof that is responsive to a change in the temperature of the fluid, for wiping the conductance probe to keep deposits from building up thereon. The scope of the invention includes any and all bi-metal configurations using temperature changes to create probe cleaning. The device may be a boiler or other suitable device having a heating element for boiling water contained therein. The temperature sensitive element is arranged on a metal tip of the conductance probe so as to move axially when wiping the same.