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Cleveland's P.A. Geier Company had obtained a patent on a cyclonic vacuum cleaner as early as 1928, which was later sold to Health-Mor in 1939, introducing the Filter Queen cyclonic canister vacuum cleaner. [31] In 1979, James Dyson introduced a portable unit with cyclonic separation, adapting this design from industrial saw mills. [32]
Guidance, navigation, and control systems consist of 3 essential parts: navigation which tracks current location, guidance which leverages navigation data and target information to direct flight control "where to go", and control which accepts guidance commands to affect change in aerodynamic and/or engine controls.
This is a list of vacuum cleaners and robot vacuum cleaner manufacturers. A vacuum cleaner is a device that uses an air pump to create a partial vacuum to suck up dust and dirt, usually from floors, and optionally from other surfaces as well. The dirt is gathered by either a dustbag or a rigid cartridge, which may be emptied and reused.
Speed Queen is a laundry machine manufacturer headquartered in Ripon, Wisconsin, United States. Speed Queen is a subsidiary of Alliance Laundry Systems LLC, which billed itself as the world's largest manufacturer of commercial laundry equipment as of 2004.
The DC16, launched in 2006, is Dyson's first handheld vacuum cleaner based on the same technology as used in the DC14 and DC15 root cyclone upright vacuum cleaners. The DC16 has 36 airwatts of constant suction. The DC16 shares the same styling as the other recent upright and cylinder vacuum cleaners in the Dyson range, and weighs 1.5 kg (3.3 lb).
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.
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Dimensionless numbers (or characteristic numbers) have an important role in analyzing the behavior of fluids and their flow as well as in other transport phenomena. [1] They include the Reynolds and the Mach numbers, which describe as ratios the relative magnitude of fluid and physical system characteristics, such as density, viscosity, speed of sound, and flow speed.