Torneiras misturadoras de água: História de torneiras de cozinha e banheiro

Plumbing systems have changed drastically since then, including faucets. For many years, faucets came with two handles, one for água fria and one for hot water. It wasn’t until 1937 that this design changed. That year, a college student named Al Moen living in Seattle, Washington, turned on the faucet to wash his hands and scalded them since the water was too hot. That set an idea in motion in Al Moen’s mind for the single-handle faucet.

Primeiro projeto de Moen era para uma torneira dupla válvula com uma cam para controlar as duas válvulas. It was rejected by a major fixture manufacturer since the faucet wouldn’t work, and Moen then went to a cylindrical design. From that experience, he resolved to create a faucet that would give the user water at the desired temperature with a piston action. Between 1940 e 1945, he designed several faucets, finally selling the first single-handle mixing faucet in San Francisco in late 1947 to a local plumbing supplier. Por 1959, the Moen single-handle faucet was in hundreds of thousands of homes in the United States and sold in approximately 55 countries around the world. Hoje, singlehandle faucets are so popular that they can be found in over 40% of American homes.

Moen came up with a few other inventions during his life, including the replaceable cartridge (eliminating washers in faucets), the screen aerator, push-button shower valve diverter, swivel spray, pressure balancing chuveiro válvula, and flow control aerator. But Moen wasn’t the only one concerned with faucet improvements. Dentro 1945, Landis H. Perry designed the first ball valve for faucets. Its objective was to provide a combined volume and blending control having a simple and effective means for sealing the valve element. The design also could be easily repaired.

A patent was issued for Perry’s ball valve in 1952. Shortly thereafter, Alex Manoogian purchased the rights to the patent and introduced the first Delta faucet in 1954. The Delta single-handle faucet was the first to use a ball-valve design and it proved very successful. Por 1958, just four years after the product was unveiled, Delta’s sales topped $1 million.

Sobre 20 years later, uma ceramic disc was patented by Wolvering Brass for water control. Unlike cartridges that use rubber in the waterway, ceramicdiscs are lapped and polished to a degree of flatness that can only be measured in lightbands. Such discs last much longer due to their high wear resistance and provide more accurate control. These discs or valves are now in wide use.

Other recent innovations include built-in filter cartridges for reducing chlorine, conduzir, and cysts; built-in pullout sprays; faucets designed for people with disabilities; and electronic faucets. The latter were introduced in the early 1980s for conservation and hygienic purposes. Estes torneiras are equipped with an infrared beam When a person puts their hands underneath the faucet, the beam is disrupted, which triggers the water to turn on. Battery-operated torneiras eletronicas have also become available in recent years.