David Peck Farley

US Patent:

7561058, Jul 14, 2009

Filed:

Jun 14, 2006

Appl. No.:

11/453782

Inventors:

David W. Farley - Orem UT, US
Frank E. Liebmann - American Fork UT, US
Allen E. Sjogren - Park City UT, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

G08B 21/00

US Classification:

340635, 219248, 320166, 340586, 340589, 340640, 374 1

Abstract:

An externally powered temperature calibration device includes a system that provides a warning of high temperatures within the device after the device has been disconnected from the external power. The warning system includes a capacitor that provides power to a light-emitting diode (“LED”) after the calibration device has been disconnected from the external power. A temperature sensor monitors the temperature of an internal component. An output signal from the sensor is used to control a switch that connects the capacitor to one of several resistors having different resistances. The switch therefore controls the discharge rate of the capacitor based on the sensed temperature at the time the calibration device was disconnected from the external power. As a result, the period during which the capacitor powers the LED can be commensurate with the time required for the internal component to cool from its initial temperature.

US Patent:

7607309, Oct 27, 2009

Filed:

Jun 14, 2006

Appl. No.:

11/453713

Inventors:

Frank E. Liebmann - American Fork UT, US
David W. Farley - Orem UT, US
Richard W. Walker - Alpine UT, US
Michael W. Hirst - Lindon UT, US
Allen E. Sjogren - Park City UT, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

F25B 21/02

US Classification:

62 33, 62 37

Abstract:

A temperature calibration device uses Peltier cells for heating and cooling. The Peltier cells are connected to a relay that connects the cells to each other in one configuration for heating and a different configuration for cooling. The Peltier cells also receive supply voltages having different magnitudes and polarities for heating and cooling. By changing the manner in which the Peltier cells are connected to each other and using different supply voltages for heating and cooling, the cells are able to operate closer to their specified maximum temperature differential without sacrificing the useful life of the cells.

US Patent:

D613251, Apr 6, 2010

Filed:

Apr 2, 2009

Appl. No.:

29/334849

Inventors:

Richard W. Walker - Alpine UT, US
David W. Farley - Orem UT, US
Jeff M. Elrod - Seattle WA, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

1303

US Classification:

D13147

US Patent:

7922522, Apr 12, 2011

Filed:

Apr 2, 2009

Appl. No.:

12/417500

Inventors:

Richard W. Walker - Alpine UT, US
David W. Farley - Orem UT, US
Jeff M. Elrod - Seattle WA, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

H01R 13/60

US Classification:

439534, 439954, 439713

Abstract:

The present invention is directed to an instrument having at least one terminal post having a longitudinal axis extending therefrom such that the longitudinal axis is at an oblique angle relative to a surface of the instrument. In one embodiment, each terminal post is mounted to a circuit board such that a first surface of each terminal post projects in a first direction. In this embodiment, a rear surface of each terminal post is beveled and coupled to a first surface of the circuit board. The beveled rear surface of the terminal posts defines the oblique angle at which the longitudinal axis of the each terminal post is relative to a surface of the instrument.

US Patent:

D639249, Jun 7, 2011

Filed:

Apr 6, 2010

Appl. No.:

29/359135

Inventors:

Richard W. Walker - Alpine UT, US
David W. Farley - Orem UT, US
Jeff M. Elrod - Seattle WA, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

1303

US Classification:

D13154

US Patent:

8117848, Feb 21, 2012

Filed:

Oct 26, 2009

Appl. No.:

12/606023

Inventors:

Frank E. Liebmann - American Fork UT, US
David W. Farley - Orem UT, US
Richard W. Walker - Alpine UT, US
Michael W. Hirst - Lindon UT, US
Allen E. Sjogren - Park City UT, US

Assignee:

Fluke Corporation - Everett WA

International Classification:

F25B 21/02

US Classification:

62 33, 62 37

Abstract:

A temperature calibration device uses Peltier cells for heating and cooling. The Peltier cells are connected to a relay that connects the cells to each other in one configuration for heating and a different configuration for cooling. The Peltier cells also receive supply voltages having different magnitudes and polarities for heating and cooling. By changing the manner in which the Peltier cells are connected to each other and using different supply voltages for heating and cooling, the cells are able to operate closer to their specified maximum temperature differential without sacrificing the useful life of the cells.

US Patent:

59646250, Oct 12, 1999

Filed:

Apr 28, 1998

Appl. No.:

9/067605

Inventors:

David W. Farley - American Fork UT

Assignee:

Hart Scientific, Inc. - American Fork UT

International Classification:

H01R 448

US Classification:

439817

Abstract:

An electrical connection device or binding post (10) for forming electrical connections with various types of electrical connectors has a body (24) adapted for being disposed in an aperture (14) of a mounting panel (18). A head (26) is movably disposed in a cavity (74) of the body and a collar (28) is movably disposed about the body. A spring (32) biases the head and collar in a secured position while depression of the head defines an open position. One or more bores (100) in the head align with one or more bores (78) in the body when the head is depressed for receiving a wire (108). An annular groove (130) is formed between the collar and a flange (86) on the body when the head is depressed for receiving a spade-type connector (138). The bores and groove are located in separate locations on the body so that the wire connection and spade connection do not physically interfere with one another. A longitudinal bore (112) is formed in the head for receiving a banana-type connector (114).

US Patent:

20220283039, Sep 8, 2022

Filed:

May 26, 2022

Appl. No.:

17/825752

Inventors:

- Everett WA, US
Rong Ding - Lindon UT, US
Donald D. Leach - Shoreline WA, US
David W. Farley - Orem UT, US

International Classification:

G01K 7/18
G01K 1/08
G01K 1/14

Abstract:

A temperature sensor includes a main body having a peripheral surface that extends along an axis between ends of the main body. A plurality of support structures are arranged along the main body and project from the peripheral surface of the main body transversely to the axis. A sleeve has a cavity defined by one or more sidewalls extending between first and second ends. The main body of the temperature sensor is positioned within the cavity. A platinum member having a length that extends along the main body is supported by a set of support structures of the plurality of support structures. In some cases, a seal member extends between the one or more sidewalls at the first end of the sleeve and seals the main body and the platinum member within the cavity. Measurement terminals may extend from the platinum member to an exterior of the temperature sensor.