Patent ID: 6290377
Filing Date: 2001-09-18
Classification: B60Q,E04H,F21V

Abstract:
In a pneumatically telescoping mast supported for pivotal movement in opposite directions about a horizontal mast axis, said mast including adjacent telescoping sections slidable relative to one another between retracted and extended positions, means including pneumatic control means for displacing said mast sections between said retracted and extended positions, and means for pivoting said mast in opposite directions about said pivot axis between horizontal and vertical positions, the improvement comprising: said means for pivoting said mast between horizontal and vertical positions including drive wheel means, means for rotating said drive wheel means in opposite directions, and means including linkage means interconnecting said drive wheel means and said mast for rotation of said drive wheel means in one of said opposite directions to pivot said mast toward said vertical position and for rotation of said drive wheel means in the other of said opposite directions to pivot said mast toward said horizontal position; lighting means for illumination mounted to one of said adjacent telescoping sections; DC power supply means for providing electrical power to said mast system including providing power to said lighting means and said means for pivoting; and means for converting DC power to AC power whereby AC power is provided to said lighting means.