US12431314 - Safety systems for battery-supplied fogging device
The patent describes a safety system for a battery-powered fogging device that utilizes a fusible wire and an optical sensor to monitor and control the temperature of a vaporization coil. When the coil exceeds a predetermined temperature, the fusible wire melts to interrupt power, enhancing the device’s safety and reliability.
Claim 1
- A safety system for battery-powered fogging device, the safety system being designed to operate on a vaporization coil of a fogging fluid of the fogging device, the safety system comprising: at least one fusible wire, each placed at one end of the coil, the fusible wire, during the production of fog by the fogging device, being able to heat up both due to a Joule effect and via heat coming from the coil by thermal conduction, the fusible wire being therefore designed to melt when its temperature exceeds a melting threshold value, interrupting the power supply from the battery to the coil; at least one sensor designed to detect the temperature of the coil upon the passage of current in the coil; and at least one control unit operatively connected to the at least one sensor, wherein the at least one sensor is an optical type sensor, designed to detect, upon reaching a temperature well above the maximum normal operating temperature, light in the red band emitted by the coil, the optical sensor being a photodiode, a phototransistor, or a CdS photocell, and being designed to control, on the basis of the detected light, an interruption of the flow of current, and the control unit being designed to measure the current of the coil, increasing the reliability of the system. at least one fusible wire, each placed at one end of the coil, the fusible wire, during the production of fog by the fogging device, being able to heat up both due to a Joule effect and via heat coming from the coil by thermal conduction, the fusible wire being therefore designed to melt when its temperature exceeds a melting threshold value, interrupting the power supply from the battery to the coil; at least one sensor designed to detect the temperature of the coil upon the passage of current in the coil; and at least one control unit operatively connected to the at least one sensor, wherein the at least one sensor is an optical type sensor, designed to detect, upon reaching a temperature well above the maximum normal operating temperature, light in the red band emitted by the coil, the optical sensor being a photodiode, a phototransistor, or a CdS photocell, and being designed to control, on the basis of the detected light, an interruption of the flow of current, and the control unit being designed to measure the current of the coil, increasing the reliability of the system.
Google Patents
https://patents.google.com/patent/US12431314
USPTO PDF
https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12431314