US3456801A - Apparatus for feeding dry particulate chlorinating reagent into a swimming pool - Google Patents

Apparatus for feeding dry particulate chlorinating reagent into a swimming pool Download PDF

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US3456801A
US3456801A US3456801DA US3456801A US 3456801 A US3456801 A US 3456801A US 3456801D A US3456801D A US 3456801DA US 3456801 A US3456801 A US 3456801A
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water
flushing chamber
outlet
swimming pool
liquid
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Letcher H Bowles
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LETCHER H BOWLES
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/687—Devices for dosing solid compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4891—With holder for solid, flaky or pulverized material to be dissolved or entrained

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  • ABSTRACT OF THE DISCLOSURE A system for the chlorination of the water in a swimming pool embodying a circulating pump for drawing a primary stream of water from the pool for filtration and returning the filtered water to the pool, a subcirculation system by which an increment of the primary stream is impelled by the circulating pump through an agitating jet below the controlled level of water in a flushing chamber to which a dry, chlorinating reagent is fed at intervals and from which flushing chamber water containing the added chlorinating agent is drawn back into the primary stream by the action of the circulating pump.
  • This invention relates to a method and apparatus for adding a dry, particulate chlorinating agent to the water of a swimming pool.
  • the invention relates to a method and apparatus particularly suitable for feeding dry, calcium hypochlorite to swimming pool water.
  • Various methods of adding the chlorinating agent include, for example, the use of gas chlorine installations for feeding gaseous chlorine into the water and the use of hypochlorinator installations for feeding hypochlorinated water (usually provided by the use of sodium hypochlorite) into the swimming pool water.
  • gas chlorine installations for feeding gaseous chlorine into the water
  • hypochlorinator installations for feeding hypochlorinated water (usually provided by the use of sodium hypochlorite) into the swimming pool water.
  • installations of these two types are fairly widely used, both may have certain disadvantages.
  • a gas chlorine installation usually requires the provision of a separate gas chlorination room as well as the provision of specialized safety equipment which renders the installation very expensive and suitable in general only for use in very large swimming pools.
  • a hypochlorinator installation may require a smaller capital installation but is likely to present other problems due to the highly corrosive nature of the strongly concentrated chlorinated water solution customarily required to be used in conjunction with such a system. These problems may commonly include unreliability due to frequent break downs and considerable maintenance costs.
  • gas chlorination systems and hypochlorination systems may quite often be unsuitable for use in conjunction with relatively smaller swimming pools such as are likely to be associated with private homes, motels or the like.
  • dry, particulate chlorinating agents directly to the swimming pool water.
  • calcium hypochlorite in view of its high release of chlorine upon solution in water and of its relatively low cost compared to other chlorinating agents.
  • such installations as have been previously devised for adding other dry, particulate chlorinating agents to swimming pool water are generally unsuitable for feeding calcium hypochlorite for various reasons.
  • one previous apparatus for adding dry, particulate chlorinating agent to water includes a generally horizontal, rectangular tank into which water is fed from the swimming pool through an inlet pipe controlled by a float to maintain a predetermined water level in the tank below the inlet pipe.
  • the agent is fed at intervals into the tank through a metering mechanism and is carried in solution out through an outlet pipe positioned at a bottom corner of the tank remote from the inlet pipe.
  • insoluble solids about 30% by volume, mostly calcium
  • One preferred embodiment of the invention intended to accomplish at least some of the foregoing objects includes an apparatus for feeding dry, particulate chlorinating agent to the water in a swimming pool system.
  • the apparatus includes a hopper adapted to hold a supply of the agent and a flushing chamber connected with the hopper.
  • Feeding means is connected with the hopper for supplying quantities of the agent to the flushing chamber at intervals.
  • Water supply means connected with the flushing chamber for delivering water thereto from the swimming pool under relatively high pressure is connected with control valve means for controlling the admission of water to maintain a predetermined level of water in the flushing chamber.
  • Outlet means is connected with the flushing chamber below the predetermined water level and conducts water leaving the flushing chamber to a filter for filtering water prior to its return to the pool.
  • Ejector means is connected with the water supply means for conducting water therefrom to a point below the predetermined water level in the flushing chamber.
  • the ejector means imparts a violent agitating and swirling motion to the water in the flushing chamber to cause the agent fed into the flushing chamber to be carried in a state of suspension in the water out through the outlet means subbstantially without settling in the chamber.
  • a method aspect of the invention includes the steps of providing a hopper to hold a supply of the agent rod of positioning a flushing chamber adjacent the hoppe, to receive quantities of the agent therefrom.
  • quantities of the agent are fed into the flushing chamber at intervals. Water is fed in under pressure from the swimming pool to the flushing chamber and is controlled in its admission to maintain a predetermined water level in the flushing chamber. Water is conducted away from the flushing chamber through an outlet positioned below the predetermined Water level.
  • the water admitted to the flushing chamber is caused to exert a violent, agitating and swirling effect upon the water in the flushing chamber to cause the agent fed into the flushing chamber to be maintained in a state of suspension in the water and to be swirled out through the outlet substantially without settling in the flushing chamber.
  • FIGURE 1 is a schematic view of a swimming pool chlorination and filtration system according to a preferred embodiment of the present invention
  • FIGURE 2 is a cross-sectional side view of a chlorinating unit forming a portion of the apparatus shown in FIGURE 1;
  • FIGURE 3 is a top view of a lid for a drum of chlorinating agent utilized in conjunction with chlorinating unit shown in FIGURE 2;
  • FIGURE 4 is a cross-sectional side view of the lid shown in FIGURE 3 taken along the lines 4-4 therein;
  • FIGURE 5 is a side view of a portion of the lid shown in FIGURE 3 taken along the lines 5-5 therein;
  • FIGURE 6 is a cross-sectional top view of a portion of the chlorinating unit shown in FIGURE 2 taken along the lines 66 therein;
  • FIGURE 7 is a cross-sectional top view of the chlorinating unit shown in FIGURE 2 taken along the lines 77 therein;
  • FIGURE 8 is a cross-sectional side view of an ejector forming a portion of the apparatus shown in FIGURE 2;
  • FIGURE 9 is an end view of the ejector shown in FIGURE 6.
  • FIGURE 1 of the drawings a preferred embodiment of the invention is there shown in conjunction with a swimming pool installation of the type including a pump 2 for drawing a primary stream of water from the swimming pool to a suction inlet side of the pump.
  • the pump 2 passes the primary stream of water at a relatively higher delivery pressure from an outlet side of the pump through a filter 4 after which the primary stream is returned to the swimming pool.
  • a strainer 6 to remove large debris, such as leaves, and manual valves 8 and 10 are connected to the suction inlet to the pump 2.
  • Other valves may also be connected upstream of the pump if desired.
  • the secondary circulating unit includes an upright, cylindrical flushing chamber 14 (FIGURE 2) into which a secondary stream of water forming a minor portion of the primary stream of water is diverted.
  • the secondary stream is diverted through an inlet pipe 16 from the high pressure downstream side of the pump 2.
  • the inlet pipe 16 communicates with a conventional float controlled valve 18 for maintaining a predetermined level of water within the flushing chamber 14.
  • a downwardly projecting pipe 19 Connected to the float valve 18 is a downwardly projecting pipe 19 having its lower end disposed below the level of the water.
  • An outlet pipe 20 communicating with the lower end of the flushing chamber 14 below the predetermined water level provides for passage of water back to the suction inlet side of the pump 2.
  • a supply of dry particulate chlorinating agent such as calcium hypochlorite is contained within a hopper 22 and is delivered in uniform amounts at predetermined intervals to the flushing chamber 14 by a horizontally disposed screw feeder 24.
  • the screw feeder 24 is driven by an electric motor 26 controlled to operate at predetermined times by a timing unit 28.
  • the pipe 19 is provided with an ejector comprising a restricted nozzle portion adapted (as will be described) to produce a violently agitated and swirling motion of the water within the flushing chamber 14.
  • This agitation is so violent that substantially all of the agent fed into the flushing chamber is broken up into immediate suspension in the water and is swirled around and out through the outlet tube 20 without opportunity ot settle on the bottom of the flushing chamber.
  • the water containing the agent then passes back into the primary stream, through the pump 2 again andthen to the filter 4 on which the insoluble solids left after dissolving of the remainder of the agent collect.
  • the filter 4 is of relatively massive capacity and is back-flooded at regular intervals in accordance with conventional swimming pool practice so that accumulation of solids presents no clogging problem.
  • the previously mentioned hopper 22 includes a downwardly converging frustoconical body 30 provided with a horizontally disposed, radially extending, annular flange 32 about its upper edge.
  • a resilient, flat, annular sealing gasket 34 is fixedly secured to the upper surface of the annular flange 32.
  • the hopper 22 is supported above ground level by conventional supporting structure generally designated 36, secured to the underside of the flange 32.
  • a conventional cylindrical IOU-pound drum of the agent (FIGURE 3) has its usual circular top lid 38 modified by cutting out a centrally positioned aperture 42 in the lid.
  • a generally rectangular sliding gate 44 is held against the lid to completely close the aperture 42, by two parallel brackets 46 fixedly secured to the lid and slidably overlapping two side edges of the gate 44 (FIGURE 4) to permit it to function as a slidable closure for the aperture 42.
  • gate 42 is moved radially of the lid between closed and open positions of the aperture by a slender rod or rigid wire-like member 48 secured to the gate 44 and having at its free end a handle 49 adapted to be grasped by hand.
  • An upwardly projecting rim 50 about the periphery of the lid is provided with a depression 52 (FIGURE 5) to permit the rod 48 to pass outwardly of the rim.
  • the drum is inverted and placed on the hopper 2 with the cover 38 resting in sealing abutting contact against the resilient flange 34.
  • the seal thus afforded excludes moisture from the material and this is particularly desirable in mixing calcium hypochlorite which is highly sensitive to the presence of moisture.
  • the seal is further improved by the peripherally extending, axially projecting rim 50- which digs into the flange 34. The handle portion 49 is then grasped and the gate 44 is pulled radially outwardly to uncover the aperture 42 to permit the dry chlorinating agent to fall into the funnel-like portion 30 of the hopper.
  • the apex of the funnel portion 30 is sealingly secured about a horizontally disposed tube 5 3 which extends at one end thereof into the previously mentioned flushing chamber 14.
  • An aperture 54 (FIGURE 6) is provided in a portion of the tube 53 facing into the hopper 22 so that the agent may pass therefrom into the tube.
  • Received within the tube 53 is the previously mentioned screw feeder 24 which extends the length of the tube.
  • the screw feeder 24 is a conventional helical feed screw of constant pitch and is provided at its end remote from the flushing chamber 14, with a plain shank connected to a universal drive connection 55.
  • the connection 55 is driven by the output shaft of the previously mentioned electric motor 26 and allows for minor misalignment between the shaft and feed screw.
  • the motor 26 is connected by suitable bracketing to the support structure 36.
  • the direction of rotation of the motor 26 is arranged in conjunction with the direction of thread of the helix of the screw shaft 24 in such a manner as to insure that rotation of the motor advances quantities of the chlorinating agent from the hopper 22 into the flushing chamber 14.
  • a suitable source of electrical power (not shown) is connected to the electric motor through the previously mentioned electrical timer 28 so that the feed screw 24 is rotated at constant speed for the predetermined periods during which it is connected to a source of power by the timer.
  • Any suitable electrical time switch of the type capable of making an electrical connection for a predetermined duration at predetermined intervals may be utilized and in the preferred embodiment an electrical timer manufactured by Dayton Electric Manufacturing Company of Chicago, 111., is utilized.
  • Chlorinating agent advanced by the screw shaft is fed into the previously mentioned flushing chamber 14 which includes a horizontally disposed, flat base 60 connected by suitable bracketing to the support structure 36. Secured to the base 60 and extending vertically upwardly therefrom is a cylindrical chamber wall 62 having an open upper end.
  • the inlet pipe 16 passes through the chamber wall 62 adjacent the upper end thereof and supports, at the upper end of the inlet pipe, the previously mentioned float valve unit 18.
  • Extending downwardly from the float valve unit 18 is the pipe 19 having its lower end positioned adjacent and spaced a short distance above the base 60.
  • a horizontally extending pivot arm 63 pivotally connected at its free end with a vertical rod 64 connected to a buoyant float 66.
  • the float 66 is stabilized against horizontal motion in the flushing chamber 14 due to water forces, by a guide collar 67 fixedly connected with the flushing chamber by suitable bracketing and slidably embracing the vertical rod 64.
  • the control valve 18 which may be of any suitable commercially available type is responsive to the vertical position of the float 66 to control the admission of water into the flushing chamber to maintain a predetermined level of water in the flushing chamber in a well known manner.
  • the float valve is a commercially available unit manufactured by Flippin Manufacturing Company of Santa Ana, Calif., under the designation standard valve, although other suitable units may be utilized if desired.
  • outlet pipe 20 Also communicating with the flushing chamber 14 below the level of the water therein at an outlet opening 68 spaced vertically a short distance above the lower extremity of the standpipe 19, is the previously mentioned outlet pipe 20 for returning water from the flushing chamber 14 to the suction inlet side of the pump 2.
  • the lower end of the pipe 19 is positioned adjacent the outlet opening 68 spaced angularly and radially a short distance therefrom (FIGURE 7).
  • baffle plate or weir 74 Positioned angularly between opening 68 and the pipe 19 is a vertically extending flat baffle plate or weir 74 which has an outer vertical edge '76 fixedly secured to the adjacent portion of the cylinder wall and an inner vertical edge 78 aligned with the center line of the cylinder 62.
  • the baffle plate 74 further includes a horizontal lower edge 80 fixedly secured to the base 60, and an upper edge 81 intersecting the inner vertical edge 78 at a point generally on a vertical level with the outlet opening 68 extending upwardly and radially outwardly.
  • the upper edge 81 intersects an upwardly extending vertical edge 82 of the bafile spaced close by adjacent the float 66.
  • the vertical edge 82 at its upper end terminates in an upwardly and radially outwardly inclined intermediate edge 83 intersecting a horizontal top edge 83a extending to the cylinder wall 62.
  • the baffle plate 74 may also be secured to standpipe 19 to stabilize it against the turbulent hydrodynamic forces exerted upon it. Additional conventional bracketing is also provided for this purpose.
  • the lower end of the pipe 19 is angled away from the baffle plate 74 towards the interior of the flushing chamber at about 30 and is in addition inclined downwardly away from the bafile plate 74 towards the base .60.
  • a violent agitating and swirling motion is imparted to the water in the flushing chamber 14 so that as the chlorinating agent is fed in, it is immediately placed in a state of suspension in the water and swirled out through the outlet before it has a chance to settle on the bottom of the flushing chamber.
  • This is achieved by providing an ejector in the form of a restrictive nozzle-like portion 84 at the lower end of the pipe 19 positioned so as to direct a stream of water with great violence downwardly at an inclination to the base in a direction towards the cylinder wall away from the outlet 68.
  • the restricted portions 84 are conveniently provided by crimping the lower end of the pipe 19 with a suitable crimping tool to a configuration shown in FIGURES 8 and 9. In this manner, the end portion of the pipe 19 is bent into a generally 4-pointed star configuration having a generally diamond shaped outlet orifice 86 of considerably less area than the cross section area of pipe 19.
  • a suitable crimping tool to a configuration shown in FIGURES 8 and 9.
  • the end portion of the pipe 19 is bent into a generally 4-pointed star configuration having a generally diamond shaped outlet orifice 86 of considerably less area than the cross section area of pipe 19.
  • the orifice may be produced in many other shapes and forms and in other manners such as,
  • FIGURES 2 and 7 Because of the restricted area of the ejector 84, water issues therefrom at high velocity and its general directions of travel in the flushing chamber 14 are indicated by illustrative arrows in FIGURES 2 and 7.
  • the water issuing at high velocity from the ejector 84 impinges upon the base 60 moving downwardly at an inclination away from the outlet opening 68 and is deflected upwardly in a circular path against the cylinder wall.
  • the flow has by this time acquired a vertically circular motion and interrupts the surface of the liquid where considerable turbulence occurs. After this the flow curves over and down towards the outlet opening 68 through which the water leaves.
  • the jet leaving the ejector 84 is directed away from the opening 68 away from the bafile 74 toward the adjacent part of the cylinder wall 62 around which it swirls until it encounters the other side of the baffle plate 74 and is directed thereby through the opening 68.
  • these vertical and horizontal circular flow paths of the water in the flushing chamber combine to provide a violent swirling and agitating motion to the water in the chamber.
  • the chlorinating agent is carried away along the outlet pipe and back into the primary stream and back through the pump 2 and on to the previously mentioned main filter 4.
  • a minor portion of the water carrying the suspended agent leaving the delivery side of the pump may be recirculated for a second time through the flushing chamber.
  • the secondary stream is itself only a minor portion of the primary stream with the result that the major part of the water containing the suspended agent passes to the filter 4.
  • the main filter 4 is of any suitable, commercially available type having a relatively massive filtration capacity so that the insoluble residues of the chlorinating agent are collected on the top of the filter media.
  • the capacity of the filter is so large that clogging does not occur within the usual periods of cleaning of the filter.
  • a throttling valve 90 (FIGURE 2) is positioned in the outlet pipe 20 intermediate the flushing chamber 14 and the inlet side of the pump 2.
  • the degree of restriction afforded by the throttling valve 90 may be selectively varied to obtain the desired suction characteristics at the flushing chamber and to compensate for environmental suction discrepancies in the particular swimming pool, pump and filter installation.
  • the adjustment on the throttling valve is made on new installations when required. This adjustment is permanent and is the only adjustment required.
  • a conventional check valve 92 (FIGURE 2) to prevent backflow of water from the primary stream into the flushing chamber 14 through the opening 67 when pump 2 is stopped for any reason.
  • an overflow port 94 extending through the cylinder wall 62 positioned above the level of water in the flushing chamber 14 but below the level of the screw feeder 24.
  • the flushing chamber in which a violent agitating and swirling motion is imparted to the water receiving the chlorinating agent to prevent settling out of insoluble residues, is of particular importance.
  • throttling valve in the outlet pipe which perimts the tap paratus to be adjusted for particular installations; by the support for the hypochlorite drum which maintains the material in a dry condition ready for feeding into the flushing chamber; and by the motor and timer which provides for predetermined feed amounts as necessitated by the size of the particular swimming pool involved.
  • An apparatus for feeding a dry, particulate chlorinating agent to the water in a swimming pool system comprising,
  • a hopper adapted to hold a supply of the agent
  • a flushing chamber connected with the hopper
  • feeding means connected with the hopper for supplying quantities of the agent to the flushing chamber at intervals;
  • water supplying means connected with said flushing chamber and adapted for delivering water thereto from the swimming pool under a relatively high pressure
  • control valve means connected with said water supplying means for controlling the admission of water to said flushing chamber to maintain a predetermined level of water in said flushing chamber;
  • outlet means connected with said flushing chamber below the predetermined water level therein;
  • a filter connected with said outlet means for filtering water received therefrom and for returning the water to the pool;
  • said flushing chamber including a base, and a generally cylindrical wall secured to and extending outwardly from said base; said ejector means further including a pipe connected with said water supply means and having a lower end disposed below the predetermined water level in said flushing chamber, and a relatively restricted nozzle portion at the lower end of said pipe positioned adjacent said outlet means directed away therefrom and inclined downwardly, said nozzle being operable to direct water with great turbulence against said wall to cause the water to swirl vertically and horizontally towards said outlet means; and a bathe plate extending vetrically upwardly from said base, said baflie plate being positioned intermediate said nozzle
  • a hopper adapted to hold a supply of particulate material; a flushing chamber connected with said hopper; feeding means connected with said hopper and operable to transfer quantities of particulate material from said hopper to said flushing chamber; liquid supplying means connected with said flushing chamber and adapted for delivering liquid thereto; control means connected with said liquid supplying means for controlling the admission of liquid to said flushing chamber to maintain at least a predetermined level of liquid in said flushing chamber; outlet means connected with said flushing chamber below the predetermined liquid level therein; a filter connected with said outlet means for filtering liquid received therefrom; ejector means connected with said liquid supplying means for conducting liquid therefrom to a point below the predetermined liquid level in said flushing chamber, said ejector means being arranged to impart a violent agitating and swirling motion to said liquid in said flushing chamber to cause the particulate material transferred into said flushing chamber to be carried in a state of suspension in the liquid out through said outlet means, substantially without settling in said flushing chamber; said flushing chamber including
  • baffle plate extending vertically upwardly from said base, said baffle plate being positioned intermediate said nozzle and said outlet means, said baflle plate further being secured to said wall with portions of said baflle plate extending radially toward the center of said cylinder.
  • An apparatus for feeding dry, particulate, chlorinating reagent to the water in a swimming pool system including a pump having a suction inlet for drawing a primary stream of water from the swimming pool and a high pressure delivery outlet for passing the primary stream of water through a filter and back to the pool, said apparatus comprising,
  • a hopper adapted to hold a supply of the reagent
  • a flushing chamber connected with the hopper
  • feeding means connected with the hopper for supplying quantities of the reagent to the flushing chamber at intervals;
  • inlet means connected with said flushing chamber, said inlet means being adapted for connection with the high pressure delivery outlet of the pump to deliver a secondary stream of water to said flushing chamber;
  • control valve means connected with said inlet means for controlling the admission of water to said flushing chamber to maintain a predetermined level of water in said flushing chamber;
  • outlet means adapted for connection with the suction inlet to the pump, said outlet means communicating with said flushing chamber below the predetermined water level therein;
  • ejector means connected with said inlet means for conducting water therefrom to a point below the predetermined water level in said flushing chamber, said ejector means being arranged to impart a violent agitating and swirling motion to the water in said flushing chamber to cause the reagent fed into said flushing chamber to be carried in a state of suspension in the water out through said outlet means substantially without settling in said chamber;
  • said flushing chamber including a base, and a generally cylindrical wall secured to and extending outwardly from said base;
  • said ejector means further including,
  • baflle plate extending outwardly from said base, said bafile plate being positioned intermediate said nozzle and said outlet pipe, said baffie plate further being secured to said wall with portions of said baifie plate extending radially towards the center of said cylinder.
  • An apparatus for feeding particulate material into liquid of a system including a pump having a suction inlet for receiving a primary stream of liquid from a source and also having a high pressure delivery outlet for passing the primary stream of water through a filter, said apparatus comprising,
  • a hopper adapted to hold a supply of particulate material
  • feeding means connected with said hopper for transferring particulate material from said hopper to said flushing chamber;
  • inlet means connected with said flushing chamber, said inlet means being adapted for connection with the high pressure delivery outlet of the pump to deliver a secondary stream of liquid to said fiushing chamber; control means connected with said inlet means for controlling the admission of liquid to said flushing chamber to maintain at least a predetermined level of liquid in said flushing chamber; outlet means adapted for connection with the suctio inlet of the pump, said outlet means communicating with said flushing chamber below the predetermined liquid level therein; ejector means connected with said inlet means for conducting liquid therefrom to a point below the predetermined liquid level in said flushing chamber, said ejector means being arranged to impart a violent agitating and swirling motion to the liquid in said flushing chamber to cause the particulate material transferred into said flushing chamber to 'be carried in a state of suspension in the liquid out through said outlet means, substantially Without settling in said flushing chamber; said flushing chamber including a base, and a generally cylindrical wall secured to and extending upwardly from said base; said ejector means further including,
  • feeding means operable to supply particulate material to said flushing chamber means
  • liquid supplying means connected with said flushing chamber means and adapted to deliver liquid thereto;
  • liquid outlet means connected with said flushing chamber means
  • ejector means connected with said liquid supplying means for conducting liquid therefrom to a zone of said flushing chamber means, said ejector means being operable in said zone to initiate a violent agitating motion to liquid in said flushing chamber means to cause the particulate material supplied to said flushing chamber means to be carried in a state of substantial suspension in the liquid out through said outlet means, substantially without settling in said chamber;
  • baffle plate means mounted in said flushing chamber means and operable to substantially prevent repeated circulation of said particulate material through said flushing chamber means, said bafile means being positioned generally intermediate said outlet means and said zone of initiation of liquid agitating.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Accessories For Mixers (AREA)
  • Filtration Of Liquid (AREA)
US3456801D 1968-01-16 1968-01-16 Apparatus for feeding dry particulate chlorinating reagent into a swimming pool Expired - Lifetime US3456801A (en)

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US69828468A 1968-01-16 1968-01-16

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US (1) US3456801A (enrdf_load_stackoverflow)
JP (1) JPS4810860B1 (enrdf_load_stackoverflow)
DE (1) DE1901916A1 (enrdf_load_stackoverflow)
ES (1) ES362567A1 (enrdf_load_stackoverflow)
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Cited By (21)

* Cited by examiner, † Cited by third party
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US3595395A (en) * 1968-10-18 1971-07-27 Anzen Prod Automatic chlorinators for swimming pools
US3607105A (en) * 1969-08-22 1971-09-21 Nalco Chemical Co Automatic solvent aspirated powder feeder-dissolver
US3655054A (en) * 1970-05-25 1972-04-11 Andrew L Pansini Automatic chlorinator for swimming pools
US3710817A (en) * 1970-02-03 1973-01-16 Anzen Prod Multiple solutes additive apparatus
US3765534A (en) * 1970-11-05 1973-10-16 Cascade Ind Inc Skimmer for swimming pools
US3969248A (en) * 1974-11-01 1976-07-13 The Whitmer Company Pool filtering system
US4210624A (en) * 1976-10-27 1980-07-01 Rainbow Lifegard Products, Inc. Universal chlorinator module
US4293425A (en) * 1976-10-27 1981-10-06 Kenneth E. Price Method of chlorinating swimming pools and the like
US4688699A (en) * 1985-10-02 1987-08-25 Autotrol Corporation Bactericidal mixture control system having flow and dispense duration controls for respective substances
US5167800A (en) * 1991-03-28 1992-12-01 Aquafix Apparatus for treatment of acidic water streams
US5468066A (en) * 1994-10-14 1995-11-21 Hammonds; Carl L. Apparatus and method for injecting dry particulate material in a fluid flow line
WO1999043620A1 (en) * 1998-02-26 1999-09-02 Sintec S.R.L. Apparatus for dosing powdered or granulated additives in water works, namely swimming pools
US20040154984A1 (en) * 2001-04-02 2004-08-12 Eitan Dafny Solid material dissolution apparatus
US7291261B1 (en) * 2006-11-21 2007-11-06 Chris Rhodes Pool chemical dispenser
US20080144429A1 (en) * 2006-07-06 2008-06-19 Simmons David G Dry chemical feeder system
WO2008015678A3 (en) * 2006-08-03 2009-05-07 Bromine Compounds Ltd Method, device and system for water treatment
DE202010014255U1 (de) 2010-10-13 2010-12-23 Inka Holding Und Immobilien Gmbh & Co. Kg Vorrichtung zur Herstellung und Dosierung von Calciumhypochlorit- und vergleichbaren Lösungen
EP2497753A1 (de) 2011-01-27 2012-09-12 INKA Holding und Immobilien GmbH & Co. KG Vorrichtung zur Herstellung und Dosierung von Calciumhypochlorit- und vergleichbaren Lösungen
US20140144849A1 (en) * 2012-11-27 2014-05-29 Andrew D. Wojtaszczyk Swimming Pool Chemical Mixer
US20150014229A1 (en) * 2013-07-13 2015-01-15 Manfred Volker Chlorine measurement/filter testing/brine container monitoring of a water treatment system
US9718039B2 (en) 2014-10-02 2017-08-01 Hammonds Technical Services, Inc. Apparatus for mixing and blending of an additive material into a fluid and method

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DE1683065B1 (de) * 1966-11-28 1971-12-02 Ici Ltd Hohlprofilverbindung insbesondere fuer fenster oder tuerrahmen
JPS55163159A (en) * 1979-06-07 1980-12-18 Isao Shirayanagi Reinforcing frame for packing box and method of making said frame
FR2491530B1 (fr) * 1980-10-07 1987-10-09 Le Corvoisier Paul Dispositif de sterilisation des eaux de piscines
JPS57100617U (enrdf_load_stackoverflow) * 1980-12-10 1982-06-21

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US2639981A (en) * 1950-05-23 1953-05-26 Olin Mathieson Apparatus for mixing hypochlorite solutions
US2760820A (en) * 1954-06-30 1956-08-28 Nu Way Harvester Company Applicator for water soluble fertilizers, fungicides, insecticides, and the like
US2820701A (en) * 1954-06-28 1958-01-21 Donald J Leslie Apparatus for chlorination
US3004544A (en) * 1955-12-29 1961-10-17 Texaco Inc Continuously measuring slurry density
US3142639A (en) * 1961-03-10 1964-07-28 Otis V Miller Apparatus and process for neutralizing acid mine drainage water

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US2639981A (en) * 1950-05-23 1953-05-26 Olin Mathieson Apparatus for mixing hypochlorite solutions
US2820701A (en) * 1954-06-28 1958-01-21 Donald J Leslie Apparatus for chlorination
US2760820A (en) * 1954-06-30 1956-08-28 Nu Way Harvester Company Applicator for water soluble fertilizers, fungicides, insecticides, and the like
US3004544A (en) * 1955-12-29 1961-10-17 Texaco Inc Continuously measuring slurry density
US3142639A (en) * 1961-03-10 1964-07-28 Otis V Miller Apparatus and process for neutralizing acid mine drainage water

Cited By (28)

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Publication number Priority date Publication date Assignee Title
US3595395A (en) * 1968-10-18 1971-07-27 Anzen Prod Automatic chlorinators for swimming pools
US3607105A (en) * 1969-08-22 1971-09-21 Nalco Chemical Co Automatic solvent aspirated powder feeder-dissolver
US3710817A (en) * 1970-02-03 1973-01-16 Anzen Prod Multiple solutes additive apparatus
US3655054A (en) * 1970-05-25 1972-04-11 Andrew L Pansini Automatic chlorinator for swimming pools
US3765534A (en) * 1970-11-05 1973-10-16 Cascade Ind Inc Skimmer for swimming pools
US3969248A (en) * 1974-11-01 1976-07-13 The Whitmer Company Pool filtering system
US4210624A (en) * 1976-10-27 1980-07-01 Rainbow Lifegard Products, Inc. Universal chlorinator module
US4293425A (en) * 1976-10-27 1981-10-06 Kenneth E. Price Method of chlorinating swimming pools and the like
US4688699A (en) * 1985-10-02 1987-08-25 Autotrol Corporation Bactericidal mixture control system having flow and dispense duration controls for respective substances
US5167800A (en) * 1991-03-28 1992-12-01 Aquafix Apparatus for treatment of acidic water streams
US5468066A (en) * 1994-10-14 1995-11-21 Hammonds; Carl L. Apparatus and method for injecting dry particulate material in a fluid flow line
WO1999043620A1 (en) * 1998-02-26 1999-09-02 Sintec S.R.L. Apparatus for dosing powdered or granulated additives in water works, namely swimming pools
US6387251B1 (en) 1998-02-26 2002-05-14 Sintec S.R.L. Apparatus for dosing powdered or granulated additives in water works, namely swimming pools
US20040154984A1 (en) * 2001-04-02 2004-08-12 Eitan Dafny Solid material dissolution apparatus
US20080144429A1 (en) * 2006-07-06 2008-06-19 Simmons David G Dry chemical feeder system
US7740399B2 (en) * 2006-07-06 2010-06-22 Pulsafeeder, Inc. Dry chemical feeder for a chemical mixing system
US8114298B2 (en) * 2006-08-03 2012-02-14 Bromine Compounds Ltd. Method, device and system for water treatment
WO2008015678A3 (en) * 2006-08-03 2009-05-07 Bromine Compounds Ltd Method, device and system for water treatment
US20100006513A1 (en) * 2006-08-03 2010-01-14 Bromine Compounds Ltd. Method, device and system for water treatment
CN101558011B (zh) * 2006-08-03 2013-03-27 溴化物有限公司 用于水处理的方法、装置和系统
US7291261B1 (en) * 2006-11-21 2007-11-06 Chris Rhodes Pool chemical dispenser
DE202010014255U1 (de) 2010-10-13 2010-12-23 Inka Holding Und Immobilien Gmbh & Co. Kg Vorrichtung zur Herstellung und Dosierung von Calciumhypochlorit- und vergleichbaren Lösungen
EP2497753A1 (de) 2011-01-27 2012-09-12 INKA Holding und Immobilien GmbH & Co. KG Vorrichtung zur Herstellung und Dosierung von Calciumhypochlorit- und vergleichbaren Lösungen
US20140144849A1 (en) * 2012-11-27 2014-05-29 Andrew D. Wojtaszczyk Swimming Pool Chemical Mixer
US20150014229A1 (en) * 2013-07-13 2015-01-15 Manfred Volker Chlorine measurement/filter testing/brine container monitoring of a water treatment system
US10550017B2 (en) * 2013-07-13 2020-02-04 Vivonic Gmbh Chlorine measurement/filter testing/brine container monitoring of a water treatment system
US11008233B2 (en) 2013-07-13 2021-05-18 Vivonic Gmbh Chlorine measurement/filter testing/brine container monitoring of a water treatment system
US9718039B2 (en) 2014-10-02 2017-08-01 Hammonds Technical Services, Inc. Apparatus for mixing and blending of an additive material into a fluid and method

Also Published As

Publication number Publication date
GB1207550A (en) 1970-10-07
SE360989B (enrdf_load_stackoverflow) 1973-10-15
FR2000277A1 (enrdf_load_stackoverflow) 1969-09-05
JPS4810860B1 (enrdf_load_stackoverflow) 1973-04-07
DE1901916A1 (de) 1969-09-11
ES362567A1 (es) 1970-12-01

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