Air burst to clear detection window

摘要

An apparatus including a housing having at least one window, an air burst nozzle positioned atop the housing and aimed at the window, a compressed air source, an air control solenoid connected to the air burst nozzle, the compressed air source, and a support box. The compressed air source provides compressed air to the air control solenoid. A timer module directs a magnetic valve of the support box to supply power to the coil of the air control solenoid in order to engage the solenoid. When the air control solenoid is engaged, compressed air is provided to the air burst nozzle. The air burst nozzle directs a burst of air at the window of the housing to clear it of any particulates. In accordance with user programming of the timer module, the process is then repeated at regular intervals.

主权项

1. An optical monitoring device window clearing apparatus comprising:
a housing having at least one window; an air burst nozzle positioned on top of said housing and aimed downward at said window; a lighting device positioned within said housing such that light is directed outward from said window to illuminate a monitoring area; a compressed air source; an air knife nozzle positioned proximate to said fixed position air burst nozzle; an air control solenoid operably connected to said air burst nozzle and said compressed air source, wherein said air control solenoid regulates flow of compressed air in bursts to said air burst nozzle in order to clear particulates from said at least one window; tubing connected to said air burst nozzle and to a pressure switch, wherein said tubing is also connected to said air control solenoid; and a support box connected to said housing and said air control solenoid, said support box comprising a magnetic valve for controlling said air control solenoid and a programmable timer module for controlling said magnetic valve.