Battery operated temperature warning sensor
First Claim
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1. A temperature sensing device, comprising:
- a thermometer, comprising a temperature sensor and a rotatable elongate element for indicating a sensed temperature, wherein said rotatable elongate element for indicating the sensed temperature is rotatable by the temperature sensor responsive to a change in temperature, wherein at least a portion of said rotatable elongate element is electrically conductive;
a circuit connecting an electrical power source, a switch element and an electronic warning device, wherein the switch element is positioned in relation to the rotatable elongate element such that when a selected temperature is sensed by the temperature sensor, said rotatable elongate element for indicating the sensed temperature physically contacts said switch element allowing an electrical current from the power source to pass through said rotatable elongate element;
wherein said switch element is configured for rotation to adjust the selected temperature at which said rotatable elongate element will contact said switch element, and wherein the electronic warning device is configured to emit a signal when connected to the power source.
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Abstract
An alarm device for signaling when an object reaches a specified temperature. The alarm device includes a thermometer for detecting the temperature of the object. The device further includes a switch element which is closed when the thermometer indicates the specified temperature. The closed switch element triggers an alarm, such as a light or a buzzer, which will signal a person monitoring the temperature that the specified temperature has been reached.
28 Citations
14 Claims
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1. A temperature sensing device, comprising:
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a thermometer, comprising a temperature sensor and a rotatable elongate element for indicating a sensed temperature, wherein said rotatable elongate element for indicating the sensed temperature is rotatable by the temperature sensor responsive to a change in temperature, wherein at least a portion of said rotatable elongate element is electrically conductive;
a circuit connecting an electrical power source, a switch element and an electronic warning device, wherein the switch element is positioned in relation to the rotatable elongate element such that when a selected temperature is sensed by the temperature sensor, said rotatable elongate element for indicating the sensed temperature physically contacts said switch element allowing an electrical current from the power source to pass through said rotatable elongate element;
wherein said switch element is configured for rotation to adjust the selected temperature at which said rotatable elongate element will contact said switch element, and wherein the electronic warning device is configured to emit a signal when connected to the power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A battery operated temperature warning device for indicating when a specified temperature is reached, comprising:
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a dial-type thermometer, wherein said thermometer comprises an electrically conductive needle for indicating a temperature, wherein said thermometer is configured to move said needle rotationally in response to a change in temperature;
a battery;
a switch element, wherein said switch element comprises at least one contact point, wherein said at least one contact point is positioned in a location relative to the needle such that when said specified temperature is reached, the needle of said thermometer comes in physical contact with said at least one contact point such that said physical contact closes said switch element;
wherein said switch element is configured for rotation to adjust the specified temperature at which said electrically conductive needle will contact said switch element;
an electronic warning device, wherein said electronic warning device is configured to emit a warning signal when the switch element is closed;
circuit traces, wherein said circuit traces connect the battery, the switch element, and the electronic warning device; and
a housing, wherein said housing comprises a protective outer shell that encloses the thermometer, the battery, the switch element, the electronic warning device and said circuit traces, wherein said housing further comprises at least one opening. - View Dependent Claims (14)
a cap, wherein said cap covers said at least one opening in the housing such that the cap allows the warning signal emitted from the electronic warning device to be detected by a user.
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Specification