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A typical motor start capacitor. A motor capacitor [1] [2] is an electrical capacitor that alters the current to one or more windings of a single-phase alternating-current induction motor to create a rotating magnetic field. [citation needed] There are two common types of motor capacitors, start capacitor and run capacitor (including a dual run ...
In 2011, Student Placement Engineer Jake Tyler developed Vax ev, a working prototype of the world's first cardboard vacuum cleaner. [12] This product was featured across a number of tech and environmental online editorials including Gizmag [ 13 ] and TreeHugger , [ 14 ] and on the BBC Television series Bang Goes the Theory . [ 15 ]
The air watts indicate the motor's global performance, and thus the central vacuum's efficiency level. Nowadays, the power of single-motor central vacuums is usually between 500 and 800 airwatts. For central vacuums that operate with two motors, the best practice for representing the vacuum cleaner power is to prefix "2 X" in front of the power ...
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.
Patent model of Daniel Hess's carpet sweeper. In 1860 a manual vacuum cleaner was invented by Daniel Hess of West Union, Iowa. Called a "carpet sweeper", it gathered dust with a rotating brush and had a bellows for generating suction. [4] [5] Another early model (1869) was the "Whirlwind", invented in Chicago in 1868 by Ives W. McGaffey. The ...
Starting in the late 1940s the carpet cleaning floor nozzle with the brush roller could be removed, and the 1948 owners manual for the Model 508 called it the "Triple-Cushion Vibrator", [12] which was powered by a removable rubber belt that was in contact with a metal shaft extending from the vacuum turbine blades, powered by the electric motor ...