Therm-o-disc, Incorporated

Truong Nguyen

Perry Kent

George A Clark

The present disclosure provides a high-temperature thermal pellet composition that maintains structural rigidity up to a transition temperature of about 240&#xb0; C. The composition comprises at least one organic compound (e.g., triptycene or 1-aminoanthroquinone). The pellet can be disposed in a housing of a thermally-actuated, current cutoff device, such as a high-temperature thermal cutoff device (HTTCO). Also provided are material systems, which include the pellet composition and a high-temperature seal that provides substantial sealing up to at least the transition temperature. Methods of making such high-temperature pellet compositions and incorporating them into a thermally-actuated, current cutoff device are also provided.

High temperature material compositions for high temperature thermal cutoff devices

A thermal cut-off device can include a case, a first electrically conductive lead disposed at a first end of the case, a thermally responsive pellet housed within the case, a second electrically conductive lead disposed at a second end of the case and having a distal end including a contact surface, an electrically conductive contact disposed between the pellet and the second lead, a first biasing member disposed between the pellet and the contact, and a second biasing member disposed between the contact and the second end of the case.

Thermal cut-off device

An adjustable bimetal snap disc thermostat is disclosed which provides conventional resistance-type heaters symmetrically positioned adjacent one side of the snap disc to allow adjustment of the operating temperature of the thermostat. The heaters are supported in accurate, very close proximity to the bimetal snap disc to ensure excellent heat transfer thereto. Additionally, the volume of the chamber within which the heaters are supported is reduced by a bridge portion which also serves to further reinforce the outer housing walls. Additionally, guide surfaces for the heater terminals are provided to facilitate assembly.

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Wooster, OH, United States of America

Truong Nguyen