Swimming pool cleaners evolved from two areas of science: development of the water filter and early cistern cleaners. The forerunner of today's pool cleaners were cistern cleaners. A cistern (Middle English cisterne, from the Latin cisterna, from cista, box, from Greek kistĂȘ, basket) is a waterproof receptacle for holding liquids, usually water. Often cisterns were and still are built to catch and store rainwater. The great palaces of antiquity had both lavish pools and cisterns. They were prevalent in early America as well. United States Patent and Trademark Office makes reference to a cistern cleaner patent filed (though never issued) as early as 1798. Before swimming pools were affordable and fashionable, many swam in their larger cisterns.
When was the first automated pool cleaner developed?
Ground Truth Answers: 1798
Prediction:
The first swimming pool cleaner was invented in 1912 by Pittsburgh, Pennsylvania local citizen John M. Davison. On November 26, 1912, he submitted a patent application to the United States Patent and Trademark Office entitled "Cleaning Apparatus For Swimming Pools And The Like," patent number 1,056,779 that was issued on March 25, 1913.[4]
When was the first automated pool cleaner developed?
Ground Truth Answers: 1912
Prediction: