Back to results
US 4,356,591 AGranted
Vacuum cleaner
AssigneeRommag P. Worwag & Co.
InventorErnst Lude
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner with a housing having a hood and at least one suction connection and at least one discharge opening, as well as with a dust filter and a suction apparatus provided with a blower and an electric motor, with the suction apparatus being surrounded by the hood. A noise damping or insulating device is arranged between the inner surface of the hood and the suction apparatus. The noise damping device has a damping sleeve surrounding the suction apparatus in the manner of a mantle.
Claims10
A vacuum cleaner, comprising:
- a housing having a hood and at least one suction connection and at least one discharge opening, said hood having an inner surface;
- a dust filter interposed between said suction connection and said discharge opening;
- a suction apparatus which is surrounded by said hood and includes a blower and an electric motor;
- and
- a noise damping device arranged between said inner surface of said hood and said suction apparatus, said noise damping device including a damping sleeve which surrounds said suction apparatus in the manner of a mantle, said damping sleeve being in the form of a truncated cone, and being provided on one end with a damping plate which covers said suction apparatus.
2 more elements
Dependencies are inferred from the claim text.