Randy C Jarrett

US Patent:

6668136, Dec 23, 2003

Filed:

Jun 12, 2001

Appl. No.:

09/879650

Inventors:

Sam W. Henry - Ogden UT
Paul Neilson - Pleasant View UT
Randy C. Jarrett - Mantua UT
Steven U. Nestel - Ogden UT
Donald M. Cunningham - Pittsburgh PA

Assignee:

Chromalox, Inc. - Pittsburgh PA

International Classification:

F24H 100

US Classification:

392496, 165154

Abstract:

An integral heating and cooling unit is disclosed. The integral heating and cooling unit controls the temperature of a working fluid by heating or cooling the fluid either independently or in tandem. The integral heating and cooling unit includes a casing or outer housing, which defines a plenum. A heat exchanger pipe is attached to the outer housing and passes through the plenum. A plurality of heating elements connects to the outer housing and extends into the plenum. The heating elements heat the working fluid when they are powered and the working fluid passes through the plenum. The heat exchanger pipe extracts heat from the working fluid when a cooling fluid passes through the pipe and in heat transfer relation with the working fluid.

US Patent:

20020015585, Feb 7, 2002

Filed:

Jun 11, 2001

Appl. No.:

09/878640

Inventors:

Myron Jensen - Harrisville UT, US
Steve Nestel - Ogden UT, US
Randy Jarrett - Mantua UT, US
John Henrie - Ogden UT, US
Sam Henry - Ogden UT, US
Lorin Adkins - No. Ogden UT, US
Bruce Barnes - Valencia PA, US

Assignee:

Emerson Electric Company

International Classification:

H05B003/82
F24H001/10

US Classification:

392/485000, 392/488000, 392/500000, 392/501000

Abstract:

A multivariable circulation heater. In one embodiment, the invention is a multivariable circulation heater comprising: (a) a heater having a bundle of configurable heating elements, a plurality of heating elements having selectable electrical terminations, wherein the heater may be configured for a plurality of heating capacity and/or power supply configurations by configuring the selectable electrical terminations; (b) a chamber having an insulated vessel for surrounding the bundle of configurable heating elements, wherein the vessel has a threaded screw plug opening and a plurality of bosses for adapting to inlet and outlet connections; (c) a screw plug adapted to screw into the threaded screw plug opening, the screw plug having two ends, wherein a first end is secured to the bundle of configurable heating elements and a second end is secured to the selectable electrical terminations.

US Patent:

20020127007, Sep 12, 2002

Filed:

May 8, 2001

Appl. No.:

09/850700

Inventors:

John Henrie - Ogden UT, US
Myron Jensen - Harrisville UT, US
Steve Nestel - Ogden UT, US
Randy Jarrett - Mantua UT, US
Lorin Adkins - North Ogden UT, US

International Classification:

H05B003/82
H05B001/02

US Classification:

392/498000, 392/501000

Abstract:

An integrated heater and controller assembly for monitoring and controlling the heating of a process in a reservoir is disclosed. The assembly includes a heater, a coupling adapter, a control unit, and a temperature sensor. The heater attaches to the reservoir and has a heating element extending into the process. The coupling adapter includes a first tubular portion and a second tubular portion. The first tubular portion attaches to the heater. The second tubular portion attaches to the control unit. The first tubular portion is rotatably attached to the second tubular portion. Wires from the control unit communicate through a pathway in the first and second tubular portions and connect to the heater. The control unit has control circuitry to control the power supplied through the wires to the heater. The heater may also have a thermowell that extends into the process. A thermowell adapter may be used to mount the temperature sensor inside the thermowell to measure and report the temperature of the process to the control unit.