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US 6,672,735 B2Granted
Suction head for a suction cleaning device
AssigneeWessel-Werk GmbH
InventorsHorst Dilger, Dieter Kaffenberger, Klaus-Dieter Riehl
Life of this patent
Estimating the term…
Abstract
A suction head for a vacuum cleaning devices comprising an electrically operated brush roller and a lighting system for illuminating the working field. The lighting system contains a plurality of ultra-bright light-emitting diodes.
Claims6
A vacuum cleaning device comprising:
- a suction head having a front surface and in connection with an electrical system of a vacuum cleaner wherein said suction head moves along a surface in a working field;
- an electrically operated brush roller disposed within said suction head;
- and
- a lighting system on said front surface of said suction head comprising a plurality of ultra-bright white light-emitting diodes and additional diodes for monochromatic light of different wavelengths, wherein said lighting system provides a bright light in a desired light color for illuminating said surface in said working field.
1 more element
A vacuum cleaning device comprising:
- a suction head having a front surface in connection with an electrical system of the vacuum cleaner, wherein said suction head moves along a surface in a working field;
- an electrically operated brush roller disposed within said suction head;
- and
- a lighting system disposed on said front surface of said suction head and comprising a plurality of ultra-bright light-emitting diodes that are arranged close to each other and emit light in different monochromatic light colors to supply a desired color by additive color mixing of emitted light rays, wherein said lighting system illuminates said surface in said working field.
1 more element
A vacuum cleaning device comprising:
- a suction head having a front surface and in connection with an electrical system of a vacuum cleaner, wherein said suction head moves along a surface in a working field;
- an electrically operated brush roller within said suction head;
- and
- a lighting system disposed on said front surface of said suction head without a reflector in a simple and space-saving manner, wherein said lighting system comprises a multitude of ultra-bright light-emitting diodes for illuminating said surface in said working field;
- wherein said light-emitting diodes are arranged in a fan-like formation with adjacent light-emitting diodes aligned at an angle of 5° to 10° with respect to each other producing a light cone.
2 more elements
Dependencies are inferred from the claim text.