Heat sensing apparatus

Details Heat sensing apparatus Heat sensing apparatus

1980-12-03

1981-12-29

Harris, George

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

310 68C, H01H 3704

Patent

active

043085172

ABSTRACT:
A heat sensing apparatus for a member requiring heat monitoring such as bearings, etc. is described. A heat conductive plate is secured to the lower end of a hollow cartridge and closes the open bottom of the cartridge. A heat sensing device is mounted on the heat conductive plate within the cartridge and has a pair of electrical wires secured thereto which extend outwardly through one end of the cartridge. A bushing is secured to one end of the bushing and has a nipple threadably mounted thereon. One end of a flexible conduit has a nut mounted thereon which is threadably secured to the nipple to provide a rodent and dust proof connection between the flexible conduit and the bushing mounted on the cartridge. An epoxy material is contained within the cartridge and at least a portion of the bushing to seal the interior of the cartridge and to protect the heat sensing device. The cartridge is secured to the member requiring heat monitoring by small nails or the like extending through the plate so that heat from the member will be transmitted through the plate to the heat sensing device. The heat sensing device is operatively connected by the electrical wires to a signal device.

REFERENCES:
patent: 2357533 (1944-09-01), Meza
patent: 3875439 (1975-04-01), Roach
patent: 4045761 (1977-08-01), Peterson

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