Mobile aerial tower structure

Claim 1

IN COMBINATION, A PERSONNEL BUCKET OF INTEGRAL CONSTRUCTION FOR SUPPORTING A WORKMAN IN AN ELEVATED POSITION ON THE BOOM OF A MOBILE AERIAL TOWER FOR WORKING IN THE VICINITY OF HIGH VOLTAGE ELECTRICAL POWER LINES, COMPRISING AN INNER LAMINATION OF GLASS FIBER REINFORCED PLASTIC, AND OUTER LAMINATION OF GLASS FIBER REINFORCED PLASTIC EXTENDING SUBSTANTIALLY PARALLEL TO AND SPACED FROM SAID INNER LAMINATION, SAID LAMINATIONS HAVING SUBSTANTIALLY FLAT BOTTOMS AND SIDES UPSTANDING THEREFROM RESPECTIVELY, A CORE LAMINATION OF CELLULAR PLASTIC MATERIAL, SAID PLASTIC MATERIAL BEING AN ELECTRICAL INSULATOR, SAID CORE LAMINATION FILLING THE ENTIRE SPACE BETWEEN SAID INNER AND OUTER LAMINATIONS AND BEING RIGIDLY ADHERED THERETO, THE COMBINATION OF SAID INNER, OUTER AND CORE LAMINATIONS PROVIDING AN INTEGRATED, RIGID AND PHYSICALLY STRONG STRUCTURE IN WHICH A WORKMAN MAY RIDE, SAID CORE LAMINATION BEING THICKER THAN SAID INNER AND OUTER LAMINATIONS BY AN AMOUNT TO PROVIDE FOR A PREDETERMINED DIELECTRIC STRENGTH AND FOR MAINTAINING A MINIMUM SPACING BETWEEN SAID LAMINATIONS AND BETWEEN A WORKMAN IN SAID BUCKET STRUCTURE AND AN ELECTRIC LINE TOUCHING THE OUTER SURFACE OF SAID OUTER LAMINATION, AND MEANS FOR MOUNTING SAID OUTER LAMINATION ON THE END OF A BOOM.