Anti-microbial compositions and methods of making and using the same

• US 7,422,759 B2
• Filed: 11/03/2005
• Issued: 09/09/2008
• Est. Priority Date: 11/03/2004
• Status: Active Grant

• Current Assignee: North Atlantic, Inc. (Slade Gorton & Co., Inc.)
• Original Assignee: K2 Concepts, Inc.
• Inventors: Mintz, Eric, Kepner, Bryan
• Primary Examiner(s): Richter; Johann
• Assistant Examiner(s): Soroush; Ali
• Application Number:
  US11/266,562
• Publication Number:
  US 20060219641A1
• Time in Patent Office: 1,041 Days
• Field of Search: 68/17.R, 424/617, 424/618
• US Class Current: 424/618
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/12 Powders or granules A01N25/26 takes precedence
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 59/16 Heavy metals; Compounds thereof
• CPC Class Codes: A01N 59/20 Copper
• CPC Class Codes: A61L 2/238 Metals or alloys, e.g. oligodynamic metals
• CPC Class Codes: A61L 9/00 Disinfection, sterilisation or deodorisation of air body deodorants A61Q15/00; purifying air by respirators A62B, A62D9/00; separating dispersed particles from gases or vapours B01D45/00 - B01D51/00, B03C3/00; chemical or biological purification of waste gases B01D53/34; production of ozone C01B13/10; air-conditioning systems incorporating sterilisation F24F3/16, F24F8/20
• CPC Class Codes: A61L 9/012 characterised by being in a special form, e.g. gels, emulsions A61L9/048 takes precedence
• CPC Class Codes: C02F 1/505 by oligodynamic treatment
• CPC Class Codes: C02F 1/688 Devices in which the water progressively dissolves a solid compound
• CPC Class Codes: C02F 5/04 using phosphates C02F5/06 takes precedence

Abstract

Anti-microbial compositions and devices comprising anti-microbial compositions are disclosed. Methods of making and using anti-microbial compositions and devices are also disclosed.

Claims

1. A device for controlling microbial growth in potable water systems, said device comprising:

a flow-through housing having a housing wall structure, a housing volume surrounded by the housing wall structure, and one or more openings within the housing wall structure; and

fluid treatment media occupying at least a portion of the housing volume within the flow-through housing, said fluid treatment media comprising a physical mixture of;

a first set of particles or beads comprising an anti-microbial component coating on a support material with the anti-microbial component coating comprising one or more coating layers on said support material, said anti-microbial component comprising silver and said support material comprising alumina; and

a second set of particles or beads comprising a scale inhibitor comprising glassy polyphosphate particles;

wherein the support material has a particle size that prevents the support material from escaping the one or more openings within the housing wall structure.

5. The device of claim 1, wherein said device consists essentially of said flow-through housing, and said fluid water treatment media with said fluid water treatment media consisting essentially of said anti-microbial component, said support material, and said scale inhibitor.

6. The device of claim 1, wherein said glassy polyphosphate particles have a chemical composition comprising (Na₁₀Ca₂P₁₁O₃₅)xSiO₂.

2. A device for controlling microbial growth in potable water systems, said device comprising:

a flow-through housing having a housing wall structure, a housing volume surrounded by the housing wall structure, and one or more openings within the housing wall structure;

wherein the housing wall structure of the flow-through housing comprises;

an upper half,

a lower half connected to the upper half, and

a filling cap connected to the upper half or the lower half;

said one or more openings being positioned within the upper half, the lower half, or both; and

fluid treatment media occupying at least a portion of the housing volume within the flow-through housing, said fluid treatment media comprising (1) an anti-microbial component coating comprising silver on (2) a support material comprising alumina with the anti-microbial component coating comprising one or more coating layers on said support material, and (3) a scale inhibitor comprising glassy polyphosphate particles;

wherein the support material has a particle size that prevents the support material from escaping the one or more openings within the housing wall structure.

4. The device of claim 2, wherein the fluid treatment media comprises a physical mixture of (i) a first set of particles or beads comprising said support material coated with said anti-microbial component coating, and (ii) a second set of particles or beads comprising said scale inhibitor.

7. The device of claim 2, wherein (I) said device consists essentially of (i) said flow-through housing and (ii) said fluid treatment media, (II) said flow-through housing consists essentially of said upper half, said lower half, and said filling cap, which together form a spherical housing wall structure, and (III) said fluid treatment media consists essentially of (1) said anti-microbial component, (2) said support material, and (3) said scale inhibitor.

8. The device of claim 2, wherein said glassy polyphosphate particles have a chemical composition comprising (Na₁₀Ca₂P₁₁O₃₅)xSiO₂.

3. A device for controlling microbial growth in potable water systems, said device consisting essentially of:

a flow-through housing having a housing wall structure, a housing volume surrounded by the housing wall structure, and one or more openings within the housing wall structure; and

fluid treatment media occupying at least a portion of the housing volume within the flow-through housing, said fluid water treatment media consisting essentially of;

an anti-microbial component comprising silver on a support material comprising alumina; and

a scale inhibitor comprising glassy polyphosphate particles;

wherein the support material has a particle size that prevents the support material from escaping the one or more openings within the housing wall structure.

9. The device of claim 3, wherein said glassy polyphosphate particles have a chemical composition comprising (Na₁₀Ca₂P₁₁O₃₅)xSiO₂.