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Inventor: Liddell; Sarah Helen
Address: Malmesbury, GB
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7921962 |
Silencing arrangement |
April 12, 2011 |
| In an appliance, such as a cyclonic vacuum cleaner, a motor is arranged to drive an impeller fan located in a motor and fan unit. The rotation of the impeller may cause nuisance tones to be generated. A silencing arrangement is provided to control such noise and includes a plurality of |
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