Electricity: circuit makers and breakers – Special application – Actuated concurrently with operation or use of art device
Patent
1997-01-30
1998-05-05
Gellner, Michael L.
Electricity: circuit makers and breakers
Special application
Actuated concurrently with operation or use of art device
15410, 439192, H01H 906
Patent
active
057477647
ABSTRACT:
An electric power switch for a vacuum cleaner which is capable of applying an electric voltage to a motor of the vacuum cleaner, capable of controlling a suction force which is established by the motor, is convenient to use, and can be manufactured at a low cost. An air suction passage for introducing an atmospheric air into a handle of the vacuum cleaner extends from a one side wall of a pipe hose toward a cover of the handle in order to communicate with the pipe hose. An operation knob is disposed in a space between the air suction passage and the cover and allows the air suction passage to selectively communicate with an air suction port, which is formed through the cover. A first supporting member for slideably supporting the operation knob extends from a bottom wall of the handle toward the cover up to an upper surface of the air suction passage. A plurality of locking grooves for setting a displacement of the operation knob are formed on an upper surface of the first supporting member. Locking grooves consist of a plurality of on-grooves and an off-groove which are arranged in a row. A second protrusion of the electric power switch selectively engages with the on-grooves and the off-groove in order to set the displacement of the operation knob.
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Kim Yang-Rae
Son Chang-Woo
Daewoo Electronics Co. Ltd.
Friedhofer Michael A.
Gellner Michael L.
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