Vacuum cleaner and wand assembly

A wand assembly for a vacuum cleaner including, a nozzle and a base comprising:

• first and second telescoping tubes defining an air path for fluid communication between the nozzle and the hose;
• an electrical conductor running along said tubes;
• and
• a telescoping insulator assembly which receives, physically isolates and electrically insulates said electrical conductor from said first and second telescoping tubes.

A method of constructing a vacuum cleaner comprising:

• providing a canister housing holding a suction generator and a dust collector, a nozzle carrying a motor driven agitator and drive motor, and a hose and a telescoping wand assembly connecting the nozzle with the canister housing;
• powering said drive motor through an electrical conductor carried by said wand assembly;
• and
• electrically insulating said electrical conductor from said wand assembly by physically isolating said electrical conductor in a telescoping insulator assembly.

An electric vacuum cleaner, comprising:

• a canister housing including an internal chamber and a suction inlet and an exhaust outlet both communicating with said chamber;
• a suction generator held in said internal chamber;
• a dust collector held in said internal chamber between said suction inlet and said suction generator;
• a nozzle for picking up dirt and debris, said nozzle including an inlet and an outlet;
• a hose communicating with said suction inlet;
• a motor driven agitator and drive motor carried on said nozzle;
• and
• a wand assembly providing fluid communication between said outlet of said nozzle and said hose, said wand assembly including respective first and second telescoping tubes, an electrical conductor carrying electricity toward said nozzle from said hose and canister housing to power said drive motor;
• and
• said wand assembly being characterized by forming said first and second telescoping tubes from metal and providing an insulator assembly including an enclosed channel which receives and holds said electrical conductor in substantially any respective position of said first and second telescoping tubes so that said electrical conductor is electrically insulated from said first and second telescoping tubes;
• said vacuum cleaner further including a hose coupling secured to a first end of said first telescoping tube, a wand coupling secured to a second end of said first telescoping tube, an anchor sleeve secured to a first terminus of said second telescoping tube and a nozzle coupling secured to a second terminus of said second telescoping tube wherein said insulator assembly includes an electrically insulating sheath defining a wall of a first portion of said channel and extending along a substantially full length of said first telescoping tube between said hose coupling and said wand coupling.