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| Number | Title | Issue Date |
| 7350331 | Method for producing metabolites from plants cultivated in soil-less medium A method for producing molecules from plants, characterized in that the plants are cultivated in soil-less conditions and are supplied with a nutrient solution and/or sprayed with a leaching liquid, the solution and/or the liquid being subsequently recovered and tre... | 04/01/2008 |
| 7087162 | Accessible well for brine tank A well (12) outside of a brine tank (10) is provided which provides better accessibility to the brine refill valve (112) or other components within the well. Also, apertures (42–48) of differing elevations above the bottom of the brine ... | 08/08/2006 |
| 6962657 | Water treatment system A water treatment system for removing hard ions from source water. The water treatment system is of the type that includes a pair of ion-exchange water softener tanks connectable to a source of pressurized water and with a water system to supply softened water to th... | 11/08/2005 |
| 6551504 | Valve for a fluid treatment system A valve in a fluid treatment system adapted for controlling the flow of fluid between a source and a treatment media disposed in a treatment chamber. The valve includes a housing having a fluid passageway between an inlet and an outlet; a containment cham... | 04/22/2003 |
| 6491812 | Ice water cooling system An ice water cooling system for a multi-story building includes an open chemical tank 304 adjacent the bottom of the building 300. The tank includes a float-level ball 310 positioned therein for controlling the flow volume of water from the pipeline circu... | 12/10/2002 |
| 6331255 | Accessible well for brine tank A well (12) outside of a brine tank (10) is provided which provides better accessibility to the brine refill valve (112) or other components within the well. Also, apertures (42-48) of differing elevations above the bottom of the brine tank can communicat... | 12/18/2001 |
| 6129836 | Two-chamber fluid control valve and water softener incorporating same A two-chamber fluid control valve for a water softener system is provided. The valve includes a primary chamber having a primary inlet for passage of a primary fluid into the primary chamber and a primary outlet for passage of fluid out of the primary cha... | 10/10/2000 |
| 5908549 | Filtration and regeneration system A filtration and regeneration system for in-line filtration of dirt and impurities from a brine/solution having contaminant flushing capabilities and a direct non-saturated feed of liquid resin cleaners to resins or filter media. An alternate embodiment i... | 06/01/1999 |
| 5651880 | Water softener brine tank insert A salt dispenser for placement within a water softener brine tank has a cylindrical, rectangular or square plastic sleeve with multiple holes which allow the passage of water while retaining salt pellets. The salt dispenser is particularly advantageous fo... | 07/29/1997 |
| 5288399 | Gravity flow filter with backwash control chamber A gravity flow, single or multi-cell filter incorporating an integral backwash control chamber for enabling backwashing to occur without the need for backwash pumps. The backwash control chamber contains a volume of backwash liquid, and communicates with ... | 02/22/1994 |
| 4784771 | Method and apparatus for purifying fluids A method and apparatus for purifying and/or separating fluids including passing such fluid from a feed side of a reverse osmosis unit to the product side of such unit and to an ultimate user during a purifying cycle and recirculating residual fluid back t... | 11/15/1988 |
| 4687572 | Water-oil separating system including centrifugal type separator and flow controls therefor A centrifugal filter separator system operable to separate from oil under pressure, contaminants and water. The centrifuged water port of the centrifugal filter separator of the system is coupled to a differential pressure responsive, sensor control, whic... | 08/18/1987 |
| 4628170 | EDM using two separate dielectric fluids and a system for maintaining segregation of the fluids In an electric discharge machining method, a workpiece is subjected to an electric discharge machining at a high working speed using water as the dielectric fluid, and after this, the workpiece is finish-machined using oil as the dielectric fluid. An appa... | 12/09/1986 |
| 4247396 | Chemical solution dispenser A dispenser for an aqueous solution of a chemical, such as potassium permanganate, that should be confined at all times encloses the chemical in a lightweight disposable jar. The dispenser is actuated by a valve that has a relatively large float on one en... | 01/27/1981 |
| 4120786 | Separation of mixed ion exchange resins A method and apparatus for separating a mixture of cation and anion resins is disclosed. The separation involves introducing the mixture of cation and anion resins to a treatment zone in countercurrent flow with a carrier fluid to achieve hydroclassificat... | 10/17/1978 |
| 3969248 | Pool filtering system A pool filtering system is shown. Dirty water from the pool passes into a stilling or surge chamber under the control of a float valve, then passes through a large particle interceptor screen into a filter element chamber which has a plurality of generall... | 07/13/1976 |
| 3950249 | Sanitary waste treatment plant A self-contained toilet and sanitary waste treatment plant that has a delivery system, a biological treatment system and a water recovery system. The delivery system includes a vacuum-type flush toilet adapted to receive flush water from the water recover... | 04/13/1976 |
