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Hoover Inc. announced a recall of its Hoover WindTunnel bagless upright vacuums after receiving reports of the machines burning carpets and a consumer's hand, the U.S. Consumer Product Safety ...
Hoover Inc. recalled about 142,000 Hoover WindTunnel Canister Vacuums after 69 reports of them overheating or shorting, even when turned off, said the U.S. Consumer Product Safety Commission. So ...
The Hoover Company is a home appliance company founded in Ohio, United States, in 1908.It also established a major base in the United Kingdom, where it dominated the electric vacuum cleaner industry during most of the 20th century, to the point where the Hoover brand name became synonymous with vacuum cleaners and vacuuming in the United Kingdom and Ireland.
The manual vacuum cleaner was a type of non-electric vacuum cleaner, using suction to remove dirt from carpets, being powered by human muscle, similar in use to a manual lawn mower. Its invention is dated to the second half of the 19th century, when patents were granted to inventors in the United States, Britain, France, and elsewhere.
Although vacuum cleaner and the short form vacuum are neutral names, in some countries (UK, Ireland) hoover is used instead as a genericized trademark, and as a verb.The name comes from the Hoover Company, [1] one of the first and most influential companies in the development of the device.
A Ludwieg tube is a wind tunnel that produces supersonic flow for short periods of time. A large evacuated dump tank is separated from the downstream end of a convergent-divergent nozzle by a diaphragm or fast acting valve. The upstream end of the nozzle connects to a long cylindrical tube, whose cross-sectional area is significantly larger ...
Engineers check an aircraft model before a test run in the Supersonic Wind Tunnel at Lewis Flight Propulsion Laboratory. Schlieren photography is often used to capture images of gas flow and shock waves in supersonic wind tunnels. Here, Mach 4 flow over a pitot probe is observed by schlieren optics in the Penn State Supersonic Wind Tunnel. The ...
A wind tunnel is "an apparatus for producing a controlled stream of air for conducting aerodynamic experiments". [1] The experiment is conducted in the test section of the wind tunnel and a complete tunnel configuration includes air ducting to and from the test section and a device for keeping the air in motion, such as a fan.