Abstract:
A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.
Abstract:
A filter assembly is provided which includes an outer filter sleeve formed at least in part by a plurality of pleats, an inner filter sleeve formed at least in part by a plurality of pleats, wherein the inner and outer filter sleeves define a passage therebetween. An inlet cap is secured to a first end of the inner and outer filter sleeves and it has at least one inlet port communicating with the passage, and an end cap is secured to a second end of the inner and outer filter sleeves and it has an end surface closing the passage. Methods of forming such a filter assembly are also provided.
Abstract:
An improved fluid filtration media having anti-microbial properties and methods for producing and utilizing improved fluid filtration media having anti-microbial properties and employing the same in fluid filtration applications wherein one representative separation media for fluids comprises a base mixture of organic and inorganic components comprising at least one anti-microbial component; and at least one component of the base mixture comprises a charge-modified group covalently bonded to the surface of the at least one anti-microbial component is disclosed.
Abstract:
In one embodiment, the present disclosure provides fail-safe mechanisms for final filters. The fail-safe mechanisms of the present disclosure include a prefilter that is essentially transparent or translucent to TOC contaminants and a microporous filter downstream from the prefilter that filters contaminants by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, the filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants. In another embodiment, the present disclosure provides a method of filtration that includes the steps of providing a microporous filter disposed upstream from a final filter, the microporous filter capable of filtering contaminants from a fluid by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, and said filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants, and filtering the fluid through the microporous filter
Abstract:
An encapsulated filter cartridge is disclosed, which includes a filter assembly including a carbon block filter element and a microporous filter element. The filter cartridge has a permanently sealed sump defining an interior chamber configured to accommodate the filter assembly, the sump having an inlet for permitting unfiltered fluid to enter the interior chamber for communicating with the radially outer surface of the filter assembly and an outlet for permitting filtered fluid to exit the interior chamber from the axial portion of the filter assembly. The microporous filter element of the filter assembly may include a hollow fiber subassembly housed within the axial cavity of the carbon block element, said fiber subassembly including a plurality of hollow microporous fibers, or a pleated filter element surrounding the radially outer surface of the carbon block element.
Abstract:
A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.
Abstract:
Provided is separation media comprising: a base mixture having an adsorptive organic component and an inorganic component; an anti-microbial component comprising a quaternary ammonium salt containing an epoxide group; and a covalent bond directly between the quaternary ammonium salt containing an epoxide group and the inorganic component. The covalent bond is, for example, between the epoxide group and a hydroxyl group of the inorganic component. The quaternary ammonium salt containing the epoxide group can be poly(methyldiallylamine epichlorohydrin). Further, the quaternary ammonium salt containing the epoxide group can have the formula according to I: wherein n is in the range of 5 to 24. The inorganic component can be diatomaceous earth, and the adsorptive organic component can be activated carbon.
Abstract:
An encapsulated filter cartridge is disclosed, which includes a filter assembly including a carbon block filter element and a microporous filter element. The filter cartridge has a permanently sealed sump defining an interior chamber configured to accommodate the filter assembly, the sump having an inlet for permitting unfiltered fluid to enter the interior chamber for communicating with the radially outer surface of the filter assembly and an outlet for permitting filtered fluid to exit the interior chamber from the axial portion of the filter assembly. The microporous filter element of the filter assembly may include a hollow fiber subassembly housed within the axial cavity of the carbon block element, said fiber subassembly including a plurality of hollow microporous fibers, or a pleated filter element surrounding the radially outer surface of the carbon block element.
Abstract:
An improved liquid filter device comprising a first non-collapsible filter element formed of filter media; a second non-collapsible filter element formed of filter media, the first filter element being operatively contained within the second filter element such that a first space is operatively formed therebetween, the first filter element operatively forming a second space interiorly thereof; an inlet plate, operatively connected at one end of both the first and second filter elements, the inlet plate having an outer circumferential edge and a central area, the second filter element being operatively connected to the inlet plate proximate to the outer edge of the inlet plate, the first filter element being connected to the inlet plate proximate to the central area, the inlet plate operatively communicating with the first space between the first and second filter elements such that the flow of liquid to be filtered is directed into the first space, each filter element being non-collapsible in the axial direction, the inlet plate being operatively positioned to receive liquid to be filtered when the filter element is arranged within a filtration system such that liquid will pass through the inlet plate into the first space between the first and second filter elements for traversing through the filter elements for the filtration thereof. A liquid filter system incorporating the liquid filter element and methods for fabricating the improved liquid filter element are also disclosed.
Abstract:
The invention provides a golf putter 100 having a putter head 1 and a shaft 3 in which the putter head has ball striking and side surfaces, 4 and 7 respectively, that are perpendicular to each other and to the ground when the head is in a ball-striking position. The side face extends rearwardly from the heel end 6 of the ball striking face, so that it faces a player facing the side of the club. The shaft extends upwardly from the head and towards the player passing through a plane that contains the plane of the side face. The head when in the ball striking position and when seen in plan view from above is preferred to be of substantially right angled triangular form. The putter head may be formed of a first plate-like member 13 bearing the ball striking face and a second plate-like member 14 bearing the side face. A gusset 16 may be provided between and secured to the members 13 and 14.