Antimicrobial filter cartridge
OwnerGilbert Patrick, Arvind S. Patilinventors
Life of this patent
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Abstract
An antimicrobial filter cartridge having a perforated core member wrapped with a first microporous membrane, which is in turn overwrapped with second and third microporous membranes. The membranes are covered with a criss-cross wrapping of antimicrobial treated yarn. The filter cartridge is sized so as to fit tightly into a cartridge housing of a fluid filtration system. Fluid passing through the cartridge housing will be filtered by the filter cartridge to remove microorganisms from the water and which prevents the growth of bacterial and other microorganisms on the filter media.
Claims28
An antimicrobial filter cartridge, comprising:
- an inner perforated core member;
- a first microporous membrane surrounding said core member;
- a second microporous membrane overlying said first membrane
- a third microporous membrane overlying said second membrane;
- and
- a layer of yarn wrapped around said membranes and said core.
An antimicrobial filter cartridge, comprising:
- an inner core member;
- a first microporous membrane surrounding said core member;
- a second microporous membrane overlying said first membrane,
- a third microporous membrane applied about said second membrane;
- and
- wherein said membranes are treated with an antimicrobial agent.
An antimicrobial filter cartridge, comprising:
- an inner tubular perforated core member having a first end and a second end;
- at least one microporous membrane surrounding said core member overlapping said first and second ends of said core member and having nominal pores of at least approximately 0.75 microns;
- an antimicrobial yarn wound about said membrane and said core member in a desired pattern and treated with an antimicrobial agent;
- and
- whereby as a fluid passes through the filter cartridge, the fluid contacts the antimicrobial yarn and microporous membrane which trap contaminant particles within the fluid and retard bacterial growth to clean the fluid of contaminants.
An antibacterial filter cartridge, comprising:
- a core formed from an activated carbon material treated with an antimicrobial agent;
- at least one microporous membrane layer wrapped about said core;
- and
- a layer of antimicrobial impregnated yarn wrapped about said core in a substantially criss-cross wound pattern.
An antimicrobial filter cartridge, comprising:
- an inner perforated core;
- at least one microporous membrane wrapped about said core;
- a fibrous web wrapped about said microporous membrane, surrounding said core, and impregnated with an antimicrobial;
- and
- whereby as a fluid flows through said fibrous web and core of the filter cartridge, contaminants and bacteria within the fluid are trapped and removed therefrom to substantially clean the fluid.
A bactericidal filter cartridge, comprising:
- a core formed from an activated carbon material treated with an antimicrobial agent;
- at least one microporous membrane applied to said core;
- a layer of antimicrobial yarn wound about said membrane and core in a substantially criss-cross winding having pores formed therethrough;
- and
- end caps applied at opposite ends of said core.
A method of forming an antimicrobial filter cartridge for a water filtration system, comprising the steps of:
- applying an antimicrobial agent to a binder;
- mixing the antimicrobial treated binder with carbon particles;
- heating and extruding the carbon particle and antimicrobial treated mixture to form a carbon core member;
- and
- covering the core member with a yarn in a desired pattern.
A method of forming an antimicrobial filter cartridge for a water filtration system, comprising the steps of:
- applying an antimicrobial agent to a binder:
- mixing the antimicrobial treated binder with carbon particles,
- extruding the carbon particle and antimicrobial treated binder mixture to form a core member;
- applying a first microporous membrane about the core member;
- and
- covering the core member with a yarn in a desired pattern.
Dependencies are inferred from the claim text.