Method and apparatus for preventing microbial growth in drinking water
OwnerVue X. Yang, Gary L. Hatch +1inventors
InventorsVue X. Yang, Gary L. Hatch, Renaud Sublet
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Abstract
A drinking water filter inhibits retrograde bacteria growth at the user outlet with the combination of a non-carbonaceous submicron filter element immediately upstream of the system outlet and a copper orifice element in the outlet downstream of the filter element. The copper orifice element preferably comprises a thin copper disc having a single orifice. The submicron filter element preferably comprises a hollow fiber bundle filter element.
Claims21
An apparatus for inhibiting retrograde bacteria growth in the outlet of a drinking water supply system, said apparatus comprising:
- a non-carbonaceous submicron filter element upstream of the system outlet;
- and,
- a copper orifice element in the outlet downstream of the filter element.
An apparatus for inhibiting retrograde bacteria growth in the outlet of a water filter system having a final filter element, said apparatus comprising:
- a non-carbonaceous submicron post filter element downstream of the final filter element and upstream of the outlet ;
- and,
- a copper orifice element mounted in the outlet downstream of the post filter element.
A faucet filter device for inhibiting retrograde bacteria growth comprising:
- a housing having an inlet adapted for attachment to the faucet and an outlet delivering filtered water;
- a non-carbonaceous submicron filter element mounted in the housing between the inlet and the outlet;
- and,
- a copper orifice element in the outlet downstream of the filter element.
A method for inhibiting microbial growth in the outlet of a drinking water supply system comprising the steps of:
- (1) mounting a non-carbonaceous submicron filter in the flow path upstream of the outlet;
- and,
- (2) mounting a copper orifice element in the flow path at the outlet.
A method for inhibiting retrograde bacteria growth at the outlet of a drinking water filter system of the type having a final carbon filter element, said method comprising the steps of:
- (1) filtering the water from the carbon filter element with a non-carbonaceous submicron filter element;
- and,
- (2) passing the water from the submicron filter element through a copper orifice mounted in the system outlet.
Dependencies are inferred from the claim text.