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OwnerJerry Brownstein, Kathy Brownstein +3inventors
InventorsJerry Brownstein, Kathy Brownstein, Brent Hepner, Mary Peacock, Herb Pearse
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A multi-layer filter sock is fabricated from materials selected to preferentially remove certain contaminants. For example, a first layer of the filter sock removes relatively fine particulates (such as rust), and another layer removes hydrocarbons. One exemplary hydrocarbon filter material can be made from delustered synthetic fibers. In one exemplary embodiment, the multi-layer filter sock includes an inner pre-filter layer configured to remove relatively larger particulates, another layer configured to remove relatively finer particulates, and a hydrocarbon removing layer. Such a filter sock can be used to remove rust from waste water used to flush fire suppression sprinkler systems, and particulates and hydrocarbons from waste water from underground vaults, enabling such waste water to be discharged directly into the ambient environment.
A multi-layer water filter, comprising a generally elongate body having a single opening, the single opening being configured to be coupled to at least one element selected from the group consisting essentially of a pipe, a tube, and a hose, the generally elongate body comprising a plurality of different layers, each layer having different filtration properties, the multi-layer water filter comprising a material selected to remove from water at least one contaminant selected from the group consisting essentially of particulates greater than about 1 micron in size and hydrocarbons.
A filter sock comprising a generally elongate body having a single opening, the single opening being configured to be coupled to a discharge port, the generally elongate body comprising a plurality of different layers, the plurality of different layers comprising:
A method for treating waste water having relatively low levels of contaminants in-situ, such that the waste water need not be transported to a waste water treatment plant for processing, the method comprising the steps of:
A method for treating rust laden waste water from fire suppression sprinkler systems in-situ, such that the rust laden waste water need not be transported to a waste water treatment plant for processing, the method comprising the steps of:
A method for dewatering a vault and treating vault waste water in-situ, such that the vault waste water need not be transported to a waste water treatment plant for processing, the method comprising the steps of:
Dependencies are inferred from the claim text.