Thermal switch devise comprising reed switch and temperature-sen

Details Thermal switch devise comprising reed switch and temperature-sen Thermal switch devise comprising reed switch and temperature-sen

1998-10-01

1999-11-23

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Thermomagnetic

335151, 335153, 335207, H01H 900

Patent

active

059907738

ABSTRACT:
In a thermal switch device having a reed switch, a temperature-sensitive magnetic cylinder (1) and cylindrical permanent magnets (2a, 2b) disposed around the reed switch (3), and an insulator case (7), the case is provided with an inner cylinder (5) formed in an inner space of the case. The reed switch is supported in the inner cylinder, and the temperature-sensitive magnetic cylinder and the cylindrical permanent magnets are fitted on the inner cylinder. A heat conductor member (6) is attached to the case to be partially exposed outside the case while partially be in contact with the temperature-sensitive magnetic cylinder and the cylindrical permanent magnets.

REFERENCES:
patent: 3295081 (1966-12-01), Bowyer et al.
patent: 3390362 (1968-06-01), Hoeppel
patent: 3890586 (1975-06-01), Krause
patent: 4509029 (1985-04-01), Bradley

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