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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7303686 | Method of separating suspension, in particular for waste water treatment, and an apparatus for performing the same Arrangement for separating suspension, in particular for treatment of wastewater. A flocculating suspension is separated from the liquid by filtration in a fluidized layer in a sludge blanket, wherein the flocks are created from the separated suspension and fluidiza... | 12/04/2007 |
| 7297264 | Apparatus and method of water treatment with preliminary screen The present invention provides a water treatment system, such as a water softener, with a resin tank having a top distributor with a preliminary screen and second screen. The preliminary screen provides added protection by reducing the chance of larger particles fro... | 11/20/2007 |
| 7229558 | Chromatographic separation method A method for fractionating a solution into two or more fractions. More particularly the invention relates to a method for fractionating a solution by a chromatographic simulated moving bed (SMB) process in which the dissolved substances present in the feedstock are ... | 06/12/2007 |
| 7008530 | Water softener A water softener employs a vessel, a distributor with a manifold body associated to said vessel and a valve control device. A control unit programs operation of the softener. An actuator unit has a cylinder divided into a first chamber and a second chamber. The actu... | 03/07/2006 |
| 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 |
| 6926835 | Water softening device Sampling pipes 21 and 22 are inserted, separated from outlet openings, into first and second water softeners 4 and 11. Raw water flows through first water softener 4, and raw water does not flow through second water softener 11 | 08/09/2005 |
| 6919020 | Distributor/collector system A distributor/collector system includes a distributor provided with an upper header having upper laterals carrying fluid away from the upper header and a collector provided with a lower header having lower laterals carrying fluid toward the lower header. Flow enters... | 07/19/2005 |
| 6783684 | Water softening apparatus and associated method for sensing depletion of salt in a brine tank A water softening apparatus (10) comprises a regeneration tank (12) and a brine tank (14). An ion exchange resin (26) is located within the regeneration tank (12) and salt (38) is located within the brine tank (14). W... | 08/31/2004 |
| 6776913 | Water softening method and apparatus for use therewith The present invention generally relates to the removal of certain salts, such as those of calcium or magnesium, from water. More particularly, the present invention is directed to a method for efficiently softening water containing certain ions in a manner which lim... | 08/17/2004 |
| 6644349 | In-tank water conditioner valve A water conditioner valve configured for use with a tank in a water conditioning system, including a main housing a working portion disposed within the main housing and further including at least one valve chamber, and at least a portion of the working po... | 11/11/2003 |
| 6475071 | Cross flow slurry filtration apparatus and method The present invention is directed toward an apparatus and method for the cross flow filtration of polishing slurry compositions used in semiconductor wafer planarization. In one aspect, an apparatus according to the invention includes an elongated cylindr... | 11/05/2002 |
| 6379630 | Salt grid for water softening system brine tank A salt grid for supporting salt above a portion of a concentrated brine solution in a brine tank for use in a water softening system. The grid comprises first and second platforms disposed at first and second elevational levels with respect to the vertica... | 04/30/2002 |
| 6284132 | Brine fill apparatus for water softener A water softener and a method of operating the same are provided to allow for the efficient use of either NaCl or KCl as the regenerant salt. A user interface is provided to allow the user to indicate to the computer controlling the water softener whether... | 09/04/2001 |
| 6274375 | System and method for vent hood cleaning and comprehensive bioremediation of kitchen grease A commercial and institutional kitchen retrofit system for 1. the automatic daily cleaning of commercial kitchen exhaust hoods and flues, 2. a low pressure, low volume, recirculating cleaning system designed for the removal of oily residue from hard surfa... | 08/14/2001 |
| 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 |
| 5798045 | Water treatment process and system The object of the invention is a process for treating, in particular softening water by ion exchange in a regenerable medium, with exhaustion of the medium being measure in a bypass provided parallel to the main flow of the medium to the water sampling po... | 08/25/1998 |
| 5589058 | Apparatus for treatment of water The invention is directed to a water treatment system including a treatment tank having an ion-exchange mineral bed or filter bed therein, and a valve head assembly disposed on top of and in fluid communication with the treatment tank. The valve head asse... | 12/31/1996 |
| 5415767 | Water treatment plant In a device for the treatment of water with a supply container for the provision of a regeneration agent solution and also with a piston-stroke controlled metering device for the allotting of feed-water into the supply container, wherein the exactly defin... | 05/16/1995 |
| 5173179 | Removal of contaminants and recovery of metals from waste solutions Apparatus for removal of a desired material from a liquid is described, in which the liquid is cycled through a plurality of liquid treatment containers in a first direction and brought into countercurrent contact with a medium for recovery of the desired... | 12/22/1992 |
| 5053114 | Chlorinator apparatus A chlorinator employing a vertically tiered arrangement wherein a chassis unit vertically and removably mounts on a lower sodium chamber and contains a cone-shaped structure which depends into the lower chamber and disposes an attached membrane and cathod... | 10/01/1991 |
| 5045187 | Regeneration system for water conditioners such as water softeners A regenerating control system for liquid conditioners includes ball valves positioned and sized so that they do not cause any flow restriction during the normal operation of the conditioner. The valves are operated by low voltage D.C. motors which require... | 09/03/1991 |
| 4921598 | Selector valve, especially a central control valve for a water treatment device A central control valve arrangement for a water treatment system. The central control valve arrangement includes two independently positionable four-way ball valves and at least one of the balls of the ball valve serving as valve body includes with two L-... | 05/01/1990 |
| 4804465 | Water treatment apparatus A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a... | 02/14/1989 |
| 4764280 | Water softening apparatus A water softening apparatus and method for reducing odor in, and improving the taste of, problem water, including a pair of treatment tanks and a control valve assembly for determining which tank is on-line, and which tank is off-line, and for controlling... | 08/16/1988 |
| 4693814 | Water treatment apparatus A water treatment system including a pair of tank assemblies 110, 112 interconnected by a valve module 114 for controlling the communication of water to be treated to an on-line tank and the regeneration of an exhausted tank. Each tank assembly includes a... | 09/15/1987 |
| 4405455 | Adsorption separation apparatus A method for separating a starting fluid containing at least one component which is easy to adsorb and at least one component which is hard to adsorb into the respective components by the use of an adsorption separator which comprises a packed bed where a... | 09/20/1983 |
| 4385992 | Water softener control A water softener control includes a cell of sampling resin which received periodic samples of water which has passed through a major portion of the softening bed. The sampling resin changes volume when it becomes exhausted and the change in volume is empl... | 05/31/1983 |
| 4379057 | Method for the cyclic regeneration of water-softening systems and programmed water-softening system for applying the method Ion exchange medium in a water softening system is regenerated cyclically, in response to both a preset timer and a metering device responsive to the degree of hardness of the untreated water and the degree of exhaustion of the ion exchange medium, by slo... | 04/05/1983 |
| 4374025 | Water conditioning regeneration control A water conditioning system is provided with an improved resin regeneration arrangement. Included in this system is a flow control valve associated with a brine injector mechanism which provides for a very slow rinse of the treatment resin at the end of t... | 02/15/1983 |
| 4343699 | Convertible dual container storage system A dual tank storage system is provided having a first generally cylindrical upstanding tank adapted to be positioned either adjacent to or within a second tank of larger diameter. The tanks are in fluid connection and are useful in systems requiring the s... | 08/10/1982 |
| 4307742 | Ion exchanger regeneration water supply control unit Regeneration of an ion exchanger in a dishwasher, in which fresh water for regeneration passes through an airbreak receiving jet into a fresh water supply container which dispenses a preselected variable quantity of water by gravity for regeneration into ... | 12/29/1981 |
| 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 |
| 4235718 | Control device for the feeding and for the drainage of a column, column and demineralization station equipped with such a device The invention relates to a control device for the feeding and drainage of a column or a treatment station such as a demineralization station. The device includes a centralized distribution valve mounted on top of the column; which is equipped with at least thr... | 11/25/1980 |
| 4229292 | Countercurrent liquid-solid contacting apparatus A countercurrent liquid-solid contacting apparatus comprises a liquid purifying column for substantially purifying a liquid by passing the liquid upwardly through a bed of purifying material and a regenerating column for regenerating the purifying materia... | 10/21/1980 |
| 4219413 | Method and apparatus for treating water Method and apparatus for treating water with a regeneratable material (e.g. an ion exchange resin) in which the regenerating reagents are fed to the material by pneumatic means. Preferably, the reagent is diluted in a small multi-fill dilution tank feedin... | 08/26/1980 |
| 4181605 | Water softening system The water softening system hereof employs a treatment tank containing a mineral bed of ion-exchange resin granules, a brine tank, and a valve for periodically cycling water through the mineral bed for removing hardness and other undesirable factors theref... | 01/01/1980 |
| 4104165 | Water softening system The water softening system hereof employs a treatment tank containing a mineral bed of ion-exchange resin granules, a brine tank, and valve means for periodically cycling water through the mineral bed for removing hardness and other undesirable factors th... | 08/01/1978 |
| 4090964 | Acid dispenser for water softener unit A dispenser for metering a predetermined volume of acid into a water softener brine tank utilizes a generally hat-shaped diaphragm that flops from one surface of a metering chamber to the opposite surface when acted upon by either pressure or suction. The... | 05/23/1978 |
| 3962089 | Apparatus for softening hard water An apparatus for softening hard water, wherein a raw water pipe, a soft water pipe, a discharge pipe and a salt water pipe are connected with a cylindrical valve seat equipped on a softening tank accommodating ion-exchange resin to open into said tank, a ... | 06/08/1976 |
| 3951802 | Water softener A water softener has a salt container with an inlet duct which can be connected to a source of water to be softened, through a valve unit, and at least two outlet ducts each one of which is connected to the inlet duct of one of the softener containers thr... | 04/20/1976 |
