Weed Instrument Company, Incorporated

Ricky G Gotcher

Felora Derakhshani

A multi-level sealing method wherein an electrical element to be sealed is heated. Once heated, a quick curing first seal is applied to the electrical element thereby preventing the introduction of moisture, and other elements, into an electrical element as the seal cures. A second seal is applied, over the first seal and the element, that is high temperature and slow curing. As a result, the second seal has a different grain structure and the likelihood of a common moisture path into the electrical element is substantially eliminated. Therefore, once the high temperature, slow curing, second seal has cured, the reintroduction of moisture into the electrical element is prohibited. Additional layers of sealant may be added, if desired.

Multi-level sealing method

There is provided a temperature probe for measuring the temperature of the probe's surroundings and including a tip casing having an interior casing cavity in fluid communication with the probe's surroundings and at least one interior wall cavity located with respect to the interior casing cavity to facilitate heat transfer between the two cavities. A sensor such as a resistance temperature detector is mounted in the interior wall cavity and surrounded by sufficient packing to electrically insulate the sensor from the tip casing wall. A support casing is mated to one end of the tip casing with at least that portion of the support casing adjacent to the tip casing having an effective thermal conductivity lower than that of the tip casing. A heat dissipation mechanism such as a plurality of fins attached to the support casing may also be provided to limit heat transfer down the length of the support casing from the tip casing.

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Taylor, TX, United States of America

Ricky G Gotcher