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As a support for some dental appliances e.g. space maintainers [22] In patients with special needs or where regular oral hygiene is impaired leading to likely breakdown of regular direct restorations. In patients with partially submerged primary molars in order to maintain the mesiodistal space. [23]
Robotic vacuum cleaner on a hardwood floor. A robotic vacuum cleaner, sometimes called a robovac or a roomba as a generic trademark, is an autonomous robotic vacuum cleaner which has a limited vacuum floor cleaning system combined with sensors and robotic drives with programmable controllers and cleaning routines.
The Vacuette was briefly offered as a manual vacuum cleaner, utilizing a spring-loaded worm gear driven by pulling the vacuum cleaner backwards; when pushing the machine forward, the worm gear would power a turbine that provided suction (in the late 1980s the Vacuette name was resurrected and used on a corded handheld vacuum called Vacuette ...
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Vax UK Ltd is a British based brand that manufactures electrical goods and cleaning products in the floor-care and air treatment sectors, and which has its headquarters in the United Kingdom. Since 1999 the brand has been owned by a company called TTI Co. Ltd Group , which is based in Hong Kong .
Aluminium bronze is a material that looks and machines similar to brass. It is not susceptible to galling, which makes it suitable for sliding fits against stainless steel. Nickel is widely used in vacuum technology, e.g. as mechanical parts in vacuum tubes. It is relatively low-cost, can be spot welded, can be easily machined, has high melting ...
The Space Systems Laboratory (SSL) is part of the Aerospace Engineering Department and A. James Clark School of Engineering at the University of Maryland in College Park, Maryland. The Space Systems Laboratory is centered on the Neutral Buoyancy Research Facility, a 50-foot-diameter (15 m), 25-foot-deep (7.6 m) neutral buoyancy pool used to ...
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.