Heater with alert indicator
AssigneeArvin Industries, Inc.
InventorsDonald L. Townsend, Robert A. White
Life of this patent
Estimating the term…
Abstract
A radiant heater assembly is provided that includes heating element for generating heat radiantly to warm a space to be heated. The heater assembly includes a sensor for sensing temperature within the radiant heater assembly. An overheat control unit is provided for automatically disabling the heater elements upon exposure of the sensor to temperature in excess of a predetermined threshold temperature. Alert indicators are provided for indicating disablement of the heater elements upon actuation of the overheat control unit. A tip-over switch is provided for activating the alert indicators independent of actuation of the overheat control unit in response to predetermined tilting movement of the radiant heater assembly relative to a normal upright position.
Claims6
An alert system for monitoring operation of a heater assembly, the heater assembly having heater means for generating heat to warm a space to be heated, the alert system comprising
- first circuit means for disabling the heater means upon elevation of the temperature in the heater assembly to a temperature in excess of a predetermined threshold temperature, the first circuit means including signal means for indicating such temperature-induced disablement of the heater means and an overheat control unit, the overheat control unit and the signal means cooperating to form a first signaling circuit and the overheat control unit and the heater means cooperating to form a heating circuit, the overheat control unit including sensor means for sensing temperature in the heater assembly and switch means for opening the heating circuit and closing the first signaling circuit upon exposure of the sensor means to a temperature in excess of the predetermined temperature to disable the heater means and activate the signal means simultaneously, and
- second circuit means for activating said signal means in the first circuit means in response to predetermined tilting movement of the heater assembly relative to a normal upright position.
An alert system for monitoring operation of a heater assembly, the heater assembly having a heating circuit including a heater means for generating heat to warm a space to be heated and switch means for disabling the heater means, the alert system comprising
- an overheat control for disabling the heater means upon elevation of the temperature in the heater assembly to a temperature in excess of the predetermined threshold temperature, the overheat control including thermal sensing means for sensing temperature in the heater assembly, and means responsive to the thermal sensing means for operating said switch means to disable the heater means,
- a tilt control for disabling the heater means in response to a predetermined tilting movement of the heater assembly relative to a normal upright position, the tilt control including tilt sensing means for sensing a tilting movement of the heater assembly, and means responsive to the tilt sensing means for operating said switch means to disable the heating circuit, and
- signal means within a signaling circuit for indicating disablement of the heater means due to an abnormal condition, and enabling means for enabling the signaling circuit upon disablement of the heating circuit by the tilt control.
An alert system for monitoring operation of a heater assembly, the heater assembly having heater means within a heating circuit for generating heat to warm a space to be heated, the alert system comprising
- an overheat control for disabling the heater means upon elevation of the temperature in the heater assembly to a temperature in excess of the predetermined threshold temperature, the overheat control including thermal sensing means for sensing temperature in the heater assembly, and first switch means responsive to the thermal sensing means for disabling the heating circuit,
- a tilt control for disabling the heater means in response to a predetermined tilting movement of the heater assembly relative to a normal upright position, the tilt control including tilt sensing means for sensing a tilting movement of the heater assembly, and second switch means responsive to the tilt sensing means for disabling the heating circuit, and
- signal means within a signaling circuit for indicating disablement of the heater means due to an abnormal condition, and enabling means for enabling the signaling circuit upon disablement of the heating circuit by the tilt control.
Dependencies are inferred from the claim text.