Writing implement sterilization apparatus

• US 6,039,928 A
• Filed: 01/28/1998
• Issued: 03/21/2000
• Est. Priority Date: 01/28/1998
• Status: Expired due to Term

• Current Assignee: Vioguard LLC
• Original Assignee: Jon L. Roberts
• Inventors: Roberts, Jon L.
• Primary Examiner(s): Gorgos, Kathryn
• Assistant Examiner(s): MAISANO, JOSEPHINE R
• Application Number:
  US09/014,559
• Time in Patent Office: 783 Days
• Field of Search: 422/186.3
• US Class Current: 422/186.3
• CPC Class Codes: A61L 2/10 Ultraviolet radiation

Abstract

A writing implement sterilization apparatus having ultraviolet sterilization in an enclosed container to kill bacteria and other disease carrying organisms. The invention comprises a horizontal or vertical container into which a user places pens, pencils, or other writing implements to be sterilized. An ultraviolet source within the container irradiates the writing implement thereby killing any microorganisms that might reside on the writing implements. Ultraviolet radiation below 200 nm can also be used thereby creating ozone gas having germicidal characteristics. The ozone gas is circulating in and around the writing implements thereby providing further sterilization together with the ultraviolet radiation. An interlocking switch turns the UV source off when the container is opened.

Claims

1. A writing implement sterilization apparatus comprising:

a container;

a lid attached to the container;

a first source of ultraviolet radiation disposed within the container;

a writing implement holder for supporting writing implements disposed within the container;

a power supply connected to the first source; and

an interlocking switch, connected between the power supply and the first source and being biased to the off position, such that when the lid is in an open position the interlocking switch is not engaged and no power is supplied to the first source and

when the lid is closed, the interlocking switch is engaged and power is supplied to the first source.

2. The writing implement sterilization apparatus of claim 1 wherein the first source emits ultraviolet radiation below 200 nm and creates ozone gas.

3. The writing implement sterilization apparatus of claim 2 wherein the first source comprises a plurality of ultraviolet emitting lamps.

4. The writing implement sterilization apparatus of claim 2 wherein the writing implement holder is transparent to ultraviolet radiation.

5. The writing implement sterilization apparatus of claim 4 wherein the writing implement holder further comprises air circulation apertures for allowing the circulation of the ozone produced by ultraviolet radiation emitted by the first source.

6. The writing implement sterilization apparatus of claim 5 further comprising an air circulation fan for circulating ozone through the circulation apertures and throughout the container.

7. The writing implement sterilization apparatus of claim 1 wherein the first source emits ultraviolet radiation above 200 nm.

8. The writing implement sterilization apparatus of claim 7 wherein the first source comprises a plurality of ultraviolet emitting lamps.

9. The writing implement sterilization apparatus of claim 7 wherein the writing implement holder is transparent to ultraviolet radiation.

10. The writing implement sterilization apparatus of claim 1 wherein the container is oriented vertically to allow the writing implements to be placed vertically therein for sterilization.

11. The writing implement sterilization apparatus of claim 1 wherein the container is oriented horizontally to allow the writing implements to be placed horizontally therein for sterilization.

12. The writing implement sterilization apparatus of claim 1 wherein the first source comprises at least one ultraviolet emitting lamp.

14. The writing implement sterilization apparatus of claim 1 wherein the power supply comprises a battery.

15. The writing implement sterilization apparatus of claim 14 wherein the battery is rechargeable and is recharged by the power supply.

13. The writing implement sterilization apparatus of claim I further comprising an indicator light connected to the interlocking switch and the first source such that the indicator light is lit only when the interlocking switch is engaged and the first source is illuminated.

16. A writing implement sterilization apparatus comprising:

a container;

a lid attached to the container;

a first source of ultraviolet radiation, disposed within the container;

a second source of ultraviolet radiation, disposed within the lid;

a writing implement holder for supporting writing implements disposed within the container;

a power supply connected to the first source; and

an interlocking switch, connected between the power supply and the first source and being biased to the off position, such that when the lid is in an open position the interlocking switch is not engaged and no power is supplied to the first source and when the lid is closed, the interlocking switch is engaged and power is supplied to the first source.

17. The writing implement sterilization apparatus of claim 16 wherein the interlocking switch further controls power to the second source.

18. The writing implement sterilization apparatus of claim 16 where the second source emits ultraviolet radiation below 200 nm.

19. The writing implement sterilization apparatus of claim 16 where the second source emits ultraviolet radiation above 200 nm.

20. A writing implement sterilization apparatus comprising:

a substantially vertically oriented container for vertical placement of writing implements;

a lid attached to the substantially vertically oriented lower container;

a substantially vertically oriented ultraviolet radiation source disposed within the container for sterilizing writing implements contained therein;

a substantially vertically oriented writing implement holder for supporting writing implements disposed within the container;

a power supply connected to the ultraviolet radiation source; and

an interlocking switch, connected between the power supply and the ultraviolet radiation source and being biased to the off position, such that when the lid is in an open position the interlocking switch is not engaged and no power is supplied to the ultraviolet radiation source and when the lid is closed, the interlocking switch is engaged and power is supplied to the ultraviolet radiation source.

21. The writing implement sterilization apparatus of claim 20 wherein the ultraviolet radiation source emits ultraviolet radiation below 200 nm and creates ozone gas.

22. The writing implement sterilization apparatus of claim 21 further comprising a circulation fan for circulating the ozone gas throughout the container.

23. The writing implement sterilization apparatus of claim 20 wherein the ultraviolet radiation source emits ultraviolet radiation above 200 nm.

24. A writing implement sterilization apparatus comprising:

a substantially horizontally oriented container for horizontal placement of writing implements;

a lid attached to the substantially horizontally oriented container;

a substantially horizontally oriented ultraviolet radiation source disposed within the container for sterilizing writing implements contained therein;

a substantially horizontally oriented writing implement holder for supporting writing implements disposed within the container;

a power supply connected to the ultraviolet radiation source; and

an interlocking switch, connected between the power supply and the ultraviolet radiation source and being biased to the off position, such that when the lid is in an open position the interlocking switch is not engaged and no power is supplied to the ultraviolet radiation source and when the lid is closed, the interlocking switch is engaged and power is supplied to the ultraviolet radiation source.

25. The writing implement sterilization apparatus of claim 24 wherein the ultraviolet radiation source emits ultraviolet radiation above 200 nm.

26. The writing implement sterilization apparatus of claim 24 wherein the ultraviolet radiation source emits ultraviolet radiation below 200 nm and creates ozone gas.