Durex International Corporation

Watlow Electric Manufacturing Company

Mks Instruments, Inc.

Watlow Electric Manufacturing

James H Kreisel

Jason S Smith

Thomas J Restis

Casey C Clausen

William Bohlinger

James P Hentges

Kurt W Peterson

Dale Thomas Wolfe

Curtis A Foster

Randall C Nelson

Youfan Gu

Eric Ellis

Jeffrey D Kiernan

Robert O Moran

Shawn Leininger

Jason R Powell

Mark Louis-Gilmer Hoven

Charles C Lawhead

Louis P Steinhauser

Kevin Ptasienski

Christopher C Lanham

Robin H Lake

Eric E Ellis

William C Bohlinger

An electronic module housing having a rounded stylized dog-bone-type shape and an equatorial partial light bar. The shape provides a view of parts of the light bar from many locations. The controller circuitry can detect a malfunction among one or more of a plurality of current-drawing components by detecting that the total cumulative current drawing by all the components falls outside a predetermined nominal range.

Current-based status monitor for electronic controller of multiple fluid line heaters

Visibility electronic controller and current-based status monitor

A semi-flexible laminar silicone foam rubber-base heater for high temperature gas supply and exhaust lines used in microelectronic semiconductor fabrication uses superimposed adhesively bonded layers of an etched foil heater element containing layer, a high-to-low heat thermal transition layer, a thermal fuse laden silicone foam rubber insulation layer and a durable wrapping layer. The system can provide for the combined use of highly controllable etched foil heater elements, clean silicone foam rubber insulation, and inexpensive mechanical thermal fuses safely in a high heat gas supply and exhaust line environment.

High temperature gas line heater system including silicone foam rubber

Electronic controller module

A multiple heater control system includes cables, connectors, and junction boxes for user-friendly daisy chain connections of heater controllers and heaters in various configurations or combinations of individually controlled heater series and/or master and slave heater series. The heater controllers include process control of AC power to the heaters and upper-limit safety shutoff that is substantially independent from the process control. The heater controllers also have variable levels of control, adjustment, display, and communications functionality in a base module that is expandable to various levels with expansion modules that are attachable to and detachable from the base module. Connector, cable, and junction configurations, adapters, and latch features enhance user friendliness.

Heater control with high-limit thermal safety shutdown

A power control system has a controller housing, a power switch disposed within the controller housing for selectively providing power from a power supply to a power load, a limiter disposed within the controller housing configured for providing a limit switching function in response to a threshold limit, and a controller disposed within the controller housing and configured for controlling one or more operations of the control system.

Compact limiter and controller assembly and method

Multiple heater control system with expandable modular functionality

An electric, resistance element heater utilizes quartz as a sheath material and has a resistance (heating) element that is in intimate, substantially continuous contact with a surface of the quartz. This allows the heater to operate in any one or all of the three modes of heat transfer, namely, radiation, conduction and convection. Such intimate, substantially continuous contact of the resistance element is achieved by applying the element in direct contact with the quartz surface. This is accomplished by applying a heating circuit directly to the quartz surface, which heating element can be a foil element, or a thick or a thin film deposition element. The overall heater is formed by covering the heater element by a quartz sheath and attaching leads formed on the ends of the heater element to a source of electric energy. Sensors such as thermocouples, RTD's and the like can also be incorporated directly into the heater structure. Also, the heater can be fashioned into a variety of shapes.

Quartz substrate heater

Growing community of inventors

Winona, MN, United States of America

James H Kreisel