Thermo Fisher Scientific (asheville) LLC

Barnstead Thermolyne Corporation

Dennis H Smith

Todd Swift

Walter Jeff Tipton

Kevin D Bramlett

Wendell Morris

Santosh Nerur

Steven C Peake

Francis J Lahey

An ultra low temperature refrigeration system and technique, includes a cabinet with a storage chamber maintained at a certain temperature range, a door providing a seal with the cabinet when engaged with the cabinet, and a dehumidifying unit connected to the cabinet for dehumidifying the storage chamber within the cabinet.

Frost reduction by active circulation

A storage cabinet () is provided for an ultra-low temperature freezer (). The cabinet () includes a base platform (), a plurality of side structural insulated panels () each defining a side wall of the storage cabinet (), and a plurality of generally vertically oriented posts () extending from the base platform (). Each of the plurality of vertically oriented posts () has a slot () for receiving an edge portion (,,) of one of the insulated panels () therealong. The slot (a) may have a generally U-shaped profile that surrounds the edge portion (,,) of one of the insulated panels (). At least one of the generally vertically oriented posts () has a channel () that extends along a longitudinal dimension thereof, the channel () being configured to receive one of insulation, tubing, or wiring of the freezer therethrough.

Modular cabinet for ultra-low temperature freezer

An unplumbed sterilizer includes a heater having an electrical heating element disposed within a thermally conductive heater body. A conformable thermally conductive heat transfer plate is mounted between a mounting surface on the heater body and a heating surface on the sterilizing chamber. The heat transfer plate is effective to maintain a continuous mechanical contact between the heating and mounting surfaces. Further, a temperature sensor is attached to the heater body. By regulating the electrical power to the heating element as a function of the temperature of the heater body, the power applied to the heating element is maintained within specifications. Further, the heater body is mechanically attached to the sterilizing chamber by a single fastener resiliently applying a clamping force through the center of the heater body. In addition, the heater body is accessed simply by removing a cover plate from the outer body of the sterilizer.

Heating element for unplumbed sterilizer

Method and apparatus for measuring the level of a cryogenic liquid in a container using frequency pulses. The time interval between the transmitted and echoed pulse is measured and compared with predetermined store values which are characteristics of the container of known geometry.

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Dubuque, IA, United States of America

Dennis H Smith