By Richard K. Cacioppo, Sr. J.D
Progression of the pool cleaner continued when, in 1960, a patent application for a pool cleaner resembling a hand-held floor polisher was submitted. Although the device was patented three years later, this cleaner does not appear to have had any commercial impact.
This development period also witnessed what is quite possibly the precursor to today’s robotic electric pool cleaners, the Aqua Queen by AquaVac Systems in West Palm Beach, Fla., in the early 1960s. Said to weigh more than 18 kg (40 lbs), this bulky automated device used a self-contained pump, motor and filter system to vacuum the pool as it travelled from wall to wall. No patent was discovered to have been applied for or issued to this machine.
Read the full article: The evolution of pool cleaners


