Patent ID: 6104305
Filing Date: 2000-08-15
Classification: B66C

Abstract:
A Pole Alarm system for use in combination with a telescoping mast apparatus, said alarm system serving to alert an operator of said mast apparatus of the presence of overhead power lines and physical obstructions, said system comprising:an electromagnetic field sensor capable of detecting the presence of an alternating current voltage within a predetermined proximity and of generating an output signal in response thereto;a collision detector capable of sensing the presence of a physical structure within a predetermined proximity thereto and of generating an output signal in response thereto;a microprocessor electrically connected to said field sensor and to said collision detector and capable of interpreting said output signals and generating control signals to warning indicators and operating controls of said mast to interrupt the movement thereof prior to contact with high voltage lines and physical obstructions;a safety control module electrically connected to said microprocessor for display of said warning indicators to an operator of said mast apparatus of impending contact with power lines and physical obstructions, said field sensor, said collision detector, and said microprocessor being disposed in a housing mounted at the uppermost position of said mast apparatus, a light source mounted in said housing and directed upwardly to illuminate the intended path of said mast apparatus during operation thereof at night time and in other conditions of poor visibility; andsaid light source including a halogen bulb capable of heating said alarm housing during inclement weather to maintain a predetermined operating temperature thereof.