Suction head for a suction cleaning device

• US 6,672,735 B2
• Filed: 05/22/2001
• Issued: 01/06/2004
• Est. Priority Date: 01/29/2001
• Status: Active Grant

• Current Assignee: Wessel-Werk GmbH
• Original Assignee: Wessel-Werk GmbH
• Inventors: Dilger, Horst, Riehl, Klaus-Dieter, Kaffenberger, Dieter
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): Lee, Guiyoung
• Application Number:
  US09/863,083
• Publication Number:
  US 20020101730A1
• Time in Patent Office: 959 Days
• Field of Search: 362/91, 362/800, 362/234, 362/241, 362/555
• US Class Current: 362/91
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00
• CPC Class Codes: A47L 9/30 Arrangement of illuminating devices
• CPC Class Codes: Y10S 362/80 Light emitting diode

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.

Claims

1. 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.

2. The vacuum cleaning device according to claim 1, further comprising:

a housing surrounding said lighting system; and

an integrated lens for focusing light rays of said light-emitting diodes and said additional diodes.

3. The vacuum cleaning device according to claim 1, wherein said light-emitting diodes and said additional diodes are arranged in a fan-like formation producing a light cone.

4. The vacuum cleaning device according to claim 3, wherein adjacent light-emitting diodes are aligned at an angle of 5°

to 10°

with respect to each other.

5. 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.

6. 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.