Device for disinfecting rooms and floor coverings

• US 4,907,316 A
• Filed: 01/30/1989
• Issued: 03/13/1990
• Est. Priority Date: 02/09/1988
• Status: Expired due to Fees

• Current Assignee: Interlava AG
• Original Assignee: Interlava AG
• Inventors: Kurz, Gerhard
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US07/302,949
• Time in Patent Office: 407 Days
• Field of Search: 15/324, 15/339, 15/319
• US Class Current: 15/319
• CPC Class Codes: A47L 9/02 Nozzles suction nozzles for fluid transport B65G51/00

Abstract

In connection with a device for desinfecting rooms of any desired type, including the furniture, curtains, floor coverings, carpets, and the like, contained in the rooms, it is proposed to arrange in the suction nozzle of a vacuum cleaner a UV radiator emitting a radiation having a disinfecting action so that any biologically detrimental substances can be fought directly at their place of origin. The UV radiator may be installed in vacuum cleaner nozzles of any kind, i.e. for example in plain floor nozzles, combined suction and beater nozzles, curtain nozzles, and the like.

Claims

1. A vacuum cleaner for simultaneous cleaning and disinfection of rooms and the contents thereof, comprising at least one radiator emitting an ultraviolet radiation having disinfecting effect, said at least one ultraviolet radiator being installed in a suction nozzle of the vacuum cleaner, the radiation emitted by said ultraviolet radiator being directed upon the changing areas being worked by said suction nozzle, and a movement sensor in said suction nozzle, said sensor switching off said ultraviolet radiator when said nozzle is not moved for a time exceeding a predetermined period of time.

2. A vacuum cleaner according to claim 1, wherein said UV radiator is an oblong tube arranged transversely to the normal direction of movement during operation of said suction nozzle of the vacuum cleaner, said radiator filling the width of said suction nozzle.

3. A vacuum cleaner according to claim 2, wherein said UV radiator is in a compartment separated from the remaining nozzle area.

4. A vacuum cleaner according to claim 3, wherein said compartment is covered by a protective cover which is transparent for the disinfecting UV radiation.

5. A vacuum cleaner according to claim 1, and further comprising a reflecting material arranged opposite the surface to be treated, and being at least one of behind and to the side of said UV radiator tube, which material reflects radiation emitted by said UV radiator upon the surface to be treated.

6. A vacuum cleaner according to claim 5, wherein said reflecting material takes the form of a half-shell with a reflecting inner coating, said UV radiator being at least in part enclosed by said half-shell.

7. A vacuum cleaner according to claim 1, wherein said cleaner has a travelling wheel and said movement sensor includes a transmitter detecting the rotation of said travelling wheel during operation.

8. A vacuum cleaner according to claim 1, wherein said movement sensor triggers a monoflop circuit, said monoflop retaining said UV radiator in the active condition for a predetermined time period, after said time period said monoflop turning off said UV radiator, repeated triggering maintaining said UV radiator in the active condition, cessation of triggering by movement of said suction nozzle turning off said UV radiator.

9. A vacuum cleaner according to claim 8, wherein said movement sensor includes a mercury switch.

12. A vacuum cleaner for simultaneous cleaning and disinfection as claimed in claim 1, wherein said suction nozzle is one of a floor nozzle, combined suction and beater nozzle, upholstery nozzle, and curtain nozzle.

10. A vacuum cleaner for simultaneous cleaning and disinfection of rooms and the contents thereof, comprising at least one radiator emitting a radiation having disinfecting effect, said at least one radiator being installed in a suction nozzle of the vacuum cleaner, the radiation emitted by said radiator being directed upon a changing areas being worked by said suction nozzle, and switching means for making said radiator operable only with motion of said nozzle over said surface being worked.

11. A vacuum cleaner for simultaneous cleaning and disinfection of rooms and the contents thereof, comprising disinfecting means within a portion of said vacuum cleaner for disinfecting materials exposed thereto, said disinfecting means having an On state, wherein disinfecting of said materials is accomplished and an Off state where disinfecting is not accomplished, and switch means for placing said disinfecting means in said On state only with motion of said cleaner over a surface being worked.