Antimicrobial filter with metallic threads

• US 20070045176A1
• Filed: 08/23/2006
• Published: 03/01/2007
• Est. Priority Date: 08/23/2005
• Status: Abandoned Application

• Current Assignee: Noble Fiber Technologies LLC
• Original Assignee: Noble Fiber Technologies LLC
• Inventors: Furey, Joel, Chandra, N., McNally, William
• Application Number:
  US11/508,675
• Publication Number:
  US 20070045176A1
• Time in Patent Office: Days
• US Class Current: 210/501
• CPC Class Codes: C02F 1/004 using large scale industrial sized filters
• CPC Class Codes: C02F 1/505 by oligodynamic treatment

Abstract

A filter membrane formed from a filter medium and one or more metallic threads incorporated with the filter membrane for antimicrobial properties. The metallic threads may be formed from silver, copper, and zinc. The metallic threads may be wrapped around or incorporated within the material forming the filter membrane. In one embodiment, the metallic thread may be wrapped around the outside of a cartridge style filter body to kill bacteria and other organisms from the air or fluid, such as water, flowing through the filter.

Claims

1. A filter, comprising:

at least one piece of filter material;

at least one silver thread attached to the filter material to kill bacteria and other organisms with the filter.

2. The filter of claim 1, wherein the at least one silver thread is attached to an outer surface of the filter.

3. The filter of claim 1, wherein the at least one silver thread is incorporated within the at least one piece of filter material.

4. The filter of claim 1, wherein the at least one silver thread is formed from a silver coated nylon material.

5. The filter of claim 4, wherein the silver coated nylon material has a length between about 0.5 inches and about 8 inches, a denier of between about 0.5 and about 50 and between about three percent silver and about 75 percent silver by weight.

6. The filter of claim 4, wherein the silver coated nylon material has between about one filament and about 100 filaments, a denier of between about 0.5 and about 50 and between about 0.09 percent silver and about 16 percent silver by weight.

7. The filter of claim 6, wherein the silver coated nylon material has between about one filament and about 34 filaments, a denier of about six and about five percent silver by weight.

8. The filter of claim 1, wherein the at least one silver thread is formed from staple fibers.

9. The filter of claim 1, wherein the at least one silver thread is formed from a non-woven textile matrix.

10. The filter of claim 1, wherein the at least one silver thread is formed from a silver fiber between about 1 and 50 percent by weight and a carrier fiber that is between about 99 and 50 percent by weight.

11. The filter of claim 10, wherein the at least one silver thread is formed from a silver fiber is about 40 percent by weight and a carrier fiber that is about 60 percent by weight.

12. A filter, comprising:

at least one piece of filter material forming a cartridge filter;

at least one metallic thread wrapped around an outer surface of the cartridge filter to kill bacteria and other organisms with the filter.

13. The filter of claim 12, wherein the at least one metallic thread comprises a metal selected from the group consisting of silver, copper, and zinc.

14. The filter of claim 13, wherein the at least one metallic thread comprises a thread formed from copper and zinc.

15. The filter of claim 13, wherein the at least one metallic thread comprises a thread formed from silver and carbon.

16. The filter of claim 13, wherein the at least one metallic thread comprises a thread formed from silver and copper.

17. The filter of claim 13, wherein the at least one metallic thread comprises a thread formed from silver and zinc.