Electric cleaner with minimum noise
First Claim
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1. A cleaner comprising:
- a housing;
an air blower within said housing for drawing air and accompanying particles into said housing, and filter means for removing particles from said air;
exhaust means for receiving air from said blower and for exhausting said air from said cleaner with a minimum of noise;
said exhaust means comprising an inlet portion adjacent one end of said housing for receiving said air from said blower, a plurality of outlet portions adjacent an opposite end of said housing for exhausting said air received by said inlet portion, and a plurality of air rectifying duct portions extending in a substantially linear manner for at least substantially the length of said housing from said inlet portion at said one end to said respective outlet portions at said opposite end, each air rectifying duct portion receiving a portion of said air received by said inlet portion of said exhaust means;
noise absorbing means within the inlet portion of said exhaust means where the air from the blower impinges against said exhaust means; and
noise shielding means across each outlet portion of the exhaust means.
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Abstract
An electric cleaner incorporates an effective noise suppression arrangement for minimizing the noise generated by the exhaust from the electric air blower. The present invention provides an electric cleaner comprising an air rectifying duct installed on its external surfaces so that the exhaust from the electric air blower can smoothly and quietly pass through it, while the noise emitted by the exhaust can be significantly minimized throughout the vacuum cleaning operation even when using a compact cleaner.
75 Citations
10 Claims
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1. A cleaner comprising:
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a housing; an air blower within said housing for drawing air and accompanying particles into said housing, and filter means for removing particles from said air; exhaust means for receiving air from said blower and for exhausting said air from said cleaner with a minimum of noise; said exhaust means comprising an inlet portion adjacent one end of said housing for receiving said air from said blower, a plurality of outlet portions adjacent an opposite end of said housing for exhausting said air received by said inlet portion, and a plurality of air rectifying duct portions extending in a substantially linear manner for at least substantially the length of said housing from said inlet portion at said one end to said respective outlet portions at said opposite end, each air rectifying duct portion receiving a portion of said air received by said inlet portion of said exhaust means; noise absorbing means within the inlet portion of said exhaust means where the air from the blower impinges against said exhaust means; and noise shielding means across each outlet portion of the exhaust means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification