Hand dryer

• US 20060272170A1
• Filed: 03/01/2004
• Published: 12/07/2006
• Est. Priority Date: 03/03/2003
• Status: Abandoned Application

• Current Assignee: P&L Systems LLC
• Original Assignee: P&L Systems LLC
• Inventors: Holmes, Thomas M.
• Application Number:
  US10/547,723
• Publication Number:
  US 20060272170A1
• Time in Patent Office: Days
• US Class Current: 34/275
• CPC Class Codes: A47K 10/48 Drying by means of hot air hair-drying devices A45D20/00; curative hot-air baths A61H33/06; electric heating elements H05B
• CPC Class Codes: A61L 2/00 Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for contact lenses A61L12/00; atomisers for disinfecting agents A61M; sterilisation of packages or package contents in association with packaging B65B55/00; treatment of water, waste water, sewage or sludge C02F; disinfecting paper D21H21/36; disinfecting devices for water closets E03D; articles having provision for disinfection, see the relevant subclasses for these articles, e.g. H04R1/12
• CPC Class Codes: A61L 9/20 Ultraviolet radiation

Abstract

A drying apparatus, and in particular, a hand dryer that comprises a first compartment and a second compartment. The first compartment comprises an inlet for allowing air to enter the first compartment and a germicidal tube mounted in the first compartment for sterilizing air in the first compartment; while the second compartment comprises a heating element for heating sterilized air in the second compartment and a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the hand dryer. A fan is provided for causing sterilized air to leave the first compartment and enter the second compartment. In this way, the sterilized air that exits the second compartment and out of the hand dryer is at least essentially free of airborne microorganisms.

Claims

1. A hand dryer, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising;

an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising;

a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the hand dryer; and

a fan, positioned intermediate the germicidal tube and the blowing unit, for causing sterilized air to leave the first compartment and enter the second compartment;

whereby the sterilized air that exits the second compartment and out of the hand dryer is at least essentially free of airborne microorganisms.

2. The hand dryer as claimed in claim 1, wherein the heating element and the blowing unit are located downstream from the germicidal tube;

wherein the heating element heats air that has already been sterilized by the germicidal tube and the blowing unit causes air that has already been sterilized to exit the second compartment.

3. The hand dryer as claimed in claim 1, wherein the heating element and the blowing unit are located downstream from the germicidal tube;

and

wherein the blowing unit draws sterilized air out of the second compartment and out of the hand dryer and wherein the heating element heats air that has already been sterilized by the germicidal tube.

4. The hand dryer as claimed in claim 1, wherein the blowing unit draws sterilized air out of the second compartment and out of the hand dryer.

5. The hand dryer as claimed in claim 1, wherein the blowing unit is a fan.

6. The hand dryer as claimed in claim 1, wherein the fan draws sterilized air out of the first compartment and into the second compartment.

7. The hand dryer as claimed in claim 6, wherein the fan independently causes sterilized air from the first compartment to exit the second compartment and out of the hand dryer;

whereby sterilized air that exits the second compartment and out of the hand dryer from the operation of the fan is at least essentially free of airborne microorganisms.

8. The hand dryer as claimed in claim 1, wherein the germicidal tube emits UVC light;

and a metal chassis houses both the first and second compartments;

whereby UVC light is prevented from escaping the hand dryer.

9. The hand dryer as claimed in claim 1, including a grill positioned intermediate the first and second compartments for preventing foreign objects from being drawn from the first compartment into the second compartment.

10. A drying apparatus, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising;

an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising;

a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the drying apparatus; and

a fan, positioned intermediate the germicidal tube and the blowing unit, for causing sterilized air to leave the first compartment and enter the second compartment;

whereby the sterilized air that exits the second compartment and out of the drying apparatus is at least essentially free of airborne micro-organisms.

11. The drying apparatus as claimed in claim 10, wherein the heating element and the blowing unit are located downstream from the germicidal tube;

and

wherein the blowing unit draws sterilized air out of the second compartment and out of the drying apparatus and wherein the heating element heats air that has already been sterilized by the germicidal tube.

12. The drying apparatus as claimed in claim 10, wherein the blowing unit draws sterilized air out of the second compartment and out of the drying apparatus.

13. The drying apparatus as claimed in claim 10, wherein the fan draws sterilized air out of the first compartment and into the second compartment.

14. The drying apparatus as claimed in claim 13, wherein the fan independently causes sterilized air from the first compartment to exit the second compartment and out of the drying apparatus;

whereby sterilized air that exits the second compartment and out of the drying apparatus from the operation of the fan is at least essentially free of airborne microorganisms.

15. A hand dryer, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the hand dryer;

wherein the heating element and the blowing unit are located downstream from the germicidal tube and the heating element heats air that has already been sterilized by the germicidal tube and the blowing unit causes air that has already been sterilized to exit the second compartment; and

a fan for causing sterilized air to leave the first compartment and enter the second compartment, wherein the fan and the blowing unit are independently operational so that even when the blowing unit is not operational, the fan is operational;

whereby when the blowing unit is not operational, the fan causes sterilized air to exit the second compartment without the assistance of the blowing unit.

16. (canceled)

17. A hand dryer, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising;

an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising;

a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the hand dryer; and

means coupling the outlet of the first compartment to the inlet of the second compartment, said coupling means incorporating a fan for causing sterilized air to be drawn out of the first compartment and into the second compartment;

whereby the sterilized air that exits the second compartment and out of the hand dryer is at least essentially free of airborne microorganisms.

18. The hand dryer as claimed in claim 17, wherein the fan is mounted on said divider at the intersection of the inlet of the second compartment and the outlet of the first compartment.

19. The hand dryer as claimed in claim 18, wherein the fan is mounted on the second compartment side of the divider.

20. The hand dryer as claimed in claim 18, wherein the fan is mounted on the first compartment side of the divider.

21. The hand dryer as claimed in claim 17, wherein the blowing unit is a fan.

22. A drying apparatus, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising;

an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising;

a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the drying apparatus; and

means coupling the outlet of the first compartment to the inlet of the second compartment, said coupling means incorporating a fan for causing sterilized air to be drawn out of the first compartment and into the second compartment;

whereby the sterilized air that exits the second compartment and out of the drying apparatus is at least essentially free of airborne microorganisms.

23. A drying apparatus, comprising:

a first compartment and a second compartment, wherein the first compartment has an outlet and the second compartment has an inlet, with the outlet of the first compartment being coupled to the inlet of the second compartment, and a divider for dividing the first compartment from the second compartment;

the first compartment comprising an inlet for allowing air to enter the first compartment; and

a germicidal tube mounted in the first compartment for sterilizing air in the first compartment;

the second compartment comprising a heating element for heating sterilized air in the second compartment; and

a blowing unit for causing sterilized air in the second compartment to rapidly exit the second compartment and out of the drying apparatus;

wherein the heating element and the blowing unit are located downstream from the germicidal tube and the heating element heats air that has already been sterilized by the germicidal tube and the blowing unit causes air that has already been sterilized to exit the second compartment; and

means coupling the outlet of the first compartment to the inlet of the second compartment, said coupling means incorporating a fan for causing sterilized air to be drawn out of the first compartment and into the second compartment, wherein the fan and the blowing unit are independently operational so that even when the blowing unit is not operational, the fan is operational;

whereby when the blowing unit is not operational, the fan causes sterilized air to exit the second compartment without the assistance of the blowing unit.

24. The drying apparatus as claimed in claim 23, wherein the drying apparatus is a hand dryer.