Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3846078 A
Publication typeGrant
Publication dateNov 5, 1974
Filing dateMay 31, 1973
Priority dateNov 5, 1970
Publication numberUS 3846078 A, US 3846078A, US-A-3846078, US3846078 A, US3846078A
InventorsJ Brett
Original AssigneePurex Corp Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dispensing container apparatus
US 3846078 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


2 Sheets-Sheet 1 Original Filed Nov. 5, 1970 A s.,A 6,078

Nov. 5, 1974 1.5. BRETT n DISPENSING .CONTAINER APPARATUS Original Filed Nov. 5, 1970 2 Sheets-Sheet fvVE/vro (IQ/MESE. .Bee rr United States Patent O 3,846,078 DISPENSING CONTAINER APPARATUS James E. Brett, Huntington Beach, Calif., assgnor to Purex Corporation, Ltd., Lakewood, Calif. Continuation of abandoned application Ser. No. 87,082, Nov. S, 1970. This application May 31, 1973, Ser. No.

Int. Cl. B01d 11/02 U.S. Cl. 23-267 A 1 Claim ABSTRACT OF THE DISCLOSURE Dispensing container for solid treating agent adapted to be immersed in a liquid to be treated and having segmented annular ribs for insertion through, and upon bodily rotation of the container, engagement with structure defining a container receiving opening to support the container at least partly immersed in the liquid to be treated.

This is a continuation of application Ser. No. 87,082, led Nov. 5, 1970, now abandoned.

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention has to do with containers from which treating agents such as pool chlorinating powders may be dispensed in metered amounts. More particularly, the invention has to do with an incrementally adjustable dispensing container which is readily insertable a desired distance for a selected amount of liquid immersion and simply locked into the adjusted condition.

2. Prior Art The present invention has been occasioned by the need for a simple, low cost, easily operated powdered chlorinating agent dispenser for residential pools which can be successfully used by ordinarily intelligent, but not always attentive pool owners; but in principle and structure the present container is broadly applicable to treating liquids, particularly recirculating liquids with predetermined additions of solid treating agents in a controlled manner.

Swimming pool owners want maximum pool use with minimum pool maintenance elort. Presently, pools are chlorinated for health and appearance reasons. Liquid chlorine (hypochlorite) solutions are used, but increasingly popular is the powdered chlorinating or sanitizing agent such as trichloro-s-triazine-trione which decomposes to yield chlorine. The addition of such chemicals has been manual or mechanical. Mechanical systems involve various means of metering the desired amount of treating agent which varies with temperature, pool use conditions, sun exposure and like factors.

The incorporation of metered amounts of treating agent in a foolproof manner requiring minimum owner attention has been approached by others using selectively immersible containers which are connected in pool water recirculation lines or which are disposed within the pool itself. These containers achieve selective dispensing conditions through exhausting screwing down of the container through a float or other support until the desired degree of immersion is realized. Since the typical container may last only one Week, especially in the summer months, the weekly screwing removal and substitution of containers can become a nuisance.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a dispensing container with more facile insertability and withdrawability for increased convenience and sales appeal to the pool chlorinating consumer.

3,846,078 Patented Nov. 5, 1974 ice This object and others to become apparent hereinafter are achieved with a container for dispensing treating agent according to the invention adapted to be partly immersed in a liquid to be treated and comprising a cylindrical wall having an immersible lower portion adapted to pass liquid into the container and segmented annular rib means above the lower portion arranged to engage structure receiving and supporting the container in lower portion immersed condition and adapted upon bodily rotation of the container to pass and permit relative vertical movement at the support structure. The container is used in combination with structure adapted toI support the same partly immersed in liquid which includes lug means arranged about a container receiving opening in a manner to selectively engage the rib means of a container inserted into the opening a distance to be partly immersed in the liquid. This support structure may comprise a wall member such as might be secured to the liquid container, having the container receiving opening formed therein and carrying plural rib engaging lugs circularly spaced within the opening, or a float adapted to` oat in the liquid, similarly provided with a container receiving opening formed therein and carrying plural rib engaging lugs circularly spaced within the opening, or a float adapted to oat in the liquid, similarly provided with a container receiving opening and the described lugs within the opening.

In a specific embodiment, the container is adapted to dispense solid treating agent into a tank of liquid to be treated having container support structure above the liquid comprising plural circularly spaced lugs arranged about a container receiving opening. The container has a cylindrical wall, a lower end closure for the wall adapted to pass liquid and segmented annular ribs projecting outward from the wall. The ribs are arranged to pass the lugs on insertion of the container into the opening therefor and to engage the lugs on bodily rotation of the container at a predetermined container insertion into the opening permitting immersion of the container end closure in the tank liquid.

Typically in the various embodiments, lthe container comprises a blow molded body having ports circularly arranged and closed with openable closures in the lower end and above the ports, an integrally formed rib', generally no thicker in cross section than the body wall. There may be a plurality of ribs lying in vertically spaced radial planes normal to the container longitudinal axis, the corresponding segments of the ribs being in vertically alined relation and spaced to dene incremental immersion adjustments for the container end closure relative to liquid in which the container is immersed. The container may further include shoulder means adjacent the rib as a stop against lug disengaging rotation of the container.

The stop shoulder may comprise a vertical rib extending between successive pairs of radial plane rib segments. The end closure port means may comprise plural, vertically extended, circularly spaced ports having knockout closures.

The dispensing container may be used in combination with a swimming pool or like liquid reservoir or a liquid receiving tank, e.g. communicating with such reservoir, having support structure defining a container receiving opening above the liquid, and means to circulate water through the tank which may include a swimming pool and a pump to circulate Water to and from the pool through the tank.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described as to an illustrative embodiment thereof in connection with the attached drawings in which:

FIG. 1 is a schematic view of apparatus according to the invention with a side view of a liquid treating tank and the invention dispensing container therefor;

FIG. 2 is an enlarged side elevation of the container, partly broken away to show container contents in use position in tank support structure;

FIG. 3 is a view in horizontal section of the container in insertion alinement relative to the tank support structure;

FIG. 4 is a view in horizontal section of the container in rotated alinement taken on line 4 4 in FIG. 2;

FIG. 5 is a view in horizontal section along line 5 5 in FIG. 2;

FIG. 6 is a side elevation view of the dispensing container mounted in a ioat support; and

FIG. 7 is a view like FIG. 6, somewhat enlarged and partly in section.

With reference to FIG. 1, container 1 according to the invention is shown arranged to dispense its contents in a metered manner into liquid 2 within tank 3. The liquid in this instance is water being circulated to and from pool 4 by pump 5 through piping loop 6 and portionwise to tank 3 through line y7 and tank wall tting 8 which is provided with valve means (not shown) operated by L-shaped arm 9 pivoted at 10 and connected to float 11 to limit the water in the tank to level 12 above the lower end portion 13 of container 1. Water in tank 3 dissolves and mixes with solid tabletted treating agent 14 in the container 1 below the liquid level 12 and thus treated is returned to the pool 4 by pump suction through line 15 extending from tank wall tting 16. As indicated above, the dispensing container 1 may be applied to various uses, but is particularly adapted to adding solid chlorinating agent to swimming pool water as depicted.

Container 1 is designed to be low in cost so as to be disposable, simple in form for ease of use and corrosion resistant. For these reasons, tough synthetic plastics are the materials of choice `in the fabrication of the container; particularly preferred are polyethylene and polypropylene or polystyrene materials. The various structural features of the container have been ldesigned to accomplish their purpose and to be formable by high volume production techniques, particularly blow molding. Among the several features are incrementally spaced rib segments 31a, b and c, molded-in quantity indicia 18, knockeout port coverings 19 and a snap-on lid 20.

With reference to FIG. 2, container 1 is seen to cornprise a preferably blow-molded body 21 having a cylindrical wall 212, a lower end portion 13 stepped in relative to the wall and an upper end portion 23 provided with an annular groove 24 into which mating annular tongue 25 of lid 20 is snapped following lling of the container with pellets, discs, tablets, powder `or other form of solid treating agent 14. By solid treating agent herein is meant liquid solubilized material which is dissolved from the container 1 into the liquid being treated.

The cylindrical wall 22 is radially enlarged at 26 a distance below groove 24 to provide a stop ring 27 sized to prevent too deep insertion of the container into tank 3 as will be explained in more detail below. A minor extent of the wall 22 above stop ring 27, i.e. top portion 23 is smooth for application of decorative or literal material. The major extent of the wall 22 lies below the stop ring 27 and this wall extent is distinctively configured to accomplish the purposes of the invention, namely simply realized, secure, graduated immersion of dispensing container 1 in tank liquid 2.

With reference to FIG. 2, container wall 22 is provided below the stop ring 27 with rib means generally indicated at 28 constructed and arranged in a manner providing rapid mounting and demounting of the container 1 on tank 3. It is a signal feature of the invention, embodied in container 1, that the container may lbe inserted into a support structure, e.g. cover of the tank 3 having container receiving opening 29 in a rst angular orientation and when inserted a predetermined distance, rotated bodily to a second angular orientation which is maintained during container use.

For this purpose, rib means 2S comprises a series of radially projecting annular ribs 31 lying in spaced parallel planes normal to the container longitudinal axis. Each rib 31 is segmented, e.g. into three equal sized, equally circularly spaced segments 31a, 31b, 31C to define vertically extended spaces 33 therebetween running the length of the ribbed portion of the container wall 22. The ribs 31 yare formed as radial enlargements of the container body 21, e.g. in appropriate grooves in the blow mold cavity whereby the ribs are U-shaped and substantially the same in gage or thickness as the wall 22 itself or just slightly less thick as best shown in FIG. 2. Alternatively, the ribs 31 may be solid in cross-section and thicker than the wall 22 generally, where molding conditions permit.

The several ribs 31 are provided as a vertical series to enable incremental adjustment of the container body 21 relative to the liquid level 12. Corresponding segments a., b, or c of the ribs 31 are vertically alined and spaced at convenient distance increments.

The cover 30 of the tank 3 is provided with an inwardly iianged opening 29 adapted to receive container 1. Flange 34 surrounding the opening has radially inwardly projecting lugs 35 at circularly spaced locations and in vertically alined series 35d, 35e, and 35f with vertical spacing at 36 therebetween permitting reception of a rib segment.

In addition, lug segments 35d-f have a limited circular extent to provide rib passing interlug spaces 37 of adequate size. See FIG. 3.

With the complementary structures of the ribs and lugs in mind, the insertion of the container 1 into cover opening 29 may be explained and with reference to FIGS. 3 and 4. Initially the container 1 is placed vertically above the opening 29 and the body oriented to aline the ribs with interlug segment spaces 37 as shown in FIG. 3. The container 1 is passed into the opening a distance limited ultimately by stop ring 27 and when the desired extent of insertion is accomplished, the container is rotated bodily in this instance clockwise 60 into engagement of rib segments 31a., b and c with lugs 35d, e and f as shown in FIGS. 2 and 4. Vertically extended rib 38 is provide-d at one side of the 31a rib segment series as a stop shoulder against lug disengaging rotation 1of the container body 21, the lugs 35at-jc acting to engage vertical rib 38 upon fully seated engagement of the horizontal surfaces of lugs and ribs.

The extent of insertion is that submerging the container lower portion 13 in the liquid 2 in the tank 3, i.e. below the liquid level 12 as controlled by valve float 11. Entry of liquid 2 into the container lower portion 13 is through ports 39 which are depicted as vertically extended, but which may be of any convenient configuration and greater or fewer than the number shown. The ports 39 are desirably covered prior to use immersion in liquid 2, i.e. during shipping, storage and consumer handling, and for this purpose, the ports may be provided with removable closures such as knock-out membranous closure 19 which may be formed in the container molding operation and cut away for use of the container. Alternatively, the ports 39 may be covered by other openable closures such as plugs, caps or tape covers.

The opened ports 39 give liquid access to the container contents 14 shown in the form of tablets which disintegrate: on water contact. With disintegration of lower tablets,` upper tablets fall into the container lower portion 13 to provide a continuing supply of chlorinating or other treat-v ing agent to liquid 2.

The tank 3 may be connected to a swimming pool 4 as shown or be self-contained and so dimensioned as to contain the liquid to be treated for whatever purpose. In such an embodiment, the cover 36 is a wall member serving as the container support structure with.. the, opening 29 formed therein carrying the plural rib engaging lugs 35 circularly spaced within the opening. The support structure for the container may ibe above 0r below water level 12 provided water access into the container is limited to that accomplishing solution of treating agent at the desired rate.

In FIGS. 6 and 7 wherein like parts to FIGS. 1-5 have been given like numerals, the container support structure takes the form of a disc 40` which is hollow or foam or otherwise adapted to oat on liquid, suitably Water 2 disposed in a swimming pool. Disc 40` is provided with container receiving opening 41 congured with vertical series of circularly spaced lugs 42, as described with respect to the cover 30 lugs 35 which may engage ribs 31 of the container 1 as described in connection with FIGS. 1-5, save that the opening is oated over the liquid to be treated, so that the container 1 is vertically disposed along the Vertical axis of the disc 40 and in a manner to be more or less immersed in liquid depending on the extent of insertion past lugs 35 before rotation to engage ribs 31 and the lugs.

I claim:

1. Container for dispensing water soluble solid treating agent and adapted to be partly immersed in water to be treated, said container comprising a cylindrical wall having an immersible reduced diameter lower portion including plural circularly spaced port means having knockout closures to pass water into said container, a plurality of annularly segmented ribs arranged to engage structure receiving and supporting the container in lower portion immersed condition, said ribs lying in vertically spaced radial planes with their corresponding segments in vertically alined and in spaced relation to define incremental immersion adjustments for said container lower portion in the water plural vertically extended and circularly distributed spaces which upon bodily rotation of the container pass and permit relative vertical movement of the ribbed and lower portions of the container wall at said structure, and a stop rib formed integrally with said segmented ribs and extending parallel with the container axis to be engaged by the supporting structure to arrest rotation of the container.

References Cited UNITED STATES PATENTS 3,598,536 `8/1971 Christensen 23-267 E 3,595,786 7/1971 Horvath 23-267 E 2,826,484 3/1958 Buehler 23-267 A 3,107,156 10/ 1.963 Fredericks 23-267 A 3,301,579 1/1967 Gasche 285-391 FOREIGN PATENTS 566,270 12/1955 Great -Britain 285-391 1,129,050 1/1955 France 285-391 JACK SOFER, Primary Examiner S. J EMERY, Assistant Examiner U.S. Cl. X.R.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3899425 *Apr 5, 1974Aug 12, 1975H S M Americas LtdModular filter and automatic chlorinator for swimming pools
US4056470 *Aug 23, 1976Nov 1, 1977Mohawk Video Systems CorporationAutomatic chlorinator
US4087360 *Sep 24, 1975May 2, 1978Olin CorporationMethod of inhibiting scale formation
US4181702 *Sep 11, 1978Jan 1, 1980Fmc CorporationApparatus for controlled chlorination of water with an alkali metal dichloroisocyanurate
US4208376 *Mar 13, 1978Jun 17, 1980Olin CorporationWater treatment chemical dispenser with control tube
US4217331 *Oct 2, 1978Aug 12, 1980Coleco Industries, Inc.Disposable float dispenser
US4241025 *Aug 2, 1979Dec 23, 1980Bio-Lab, Inc.Chlorinator
US4249562 *Nov 6, 1978Feb 10, 1981King Lloyd H SrInline dispersal valve
US4270565 *May 29, 1979Jun 2, 1981King Lloyd H SrInline dispersal valve
US4273744 *Oct 16, 1979Jun 16, 1981Borg-Warner CorporationDevice for automatic addition of a corrosion inhibitor to a coolant system
US4331174 *Apr 28, 1980May 25, 1982Durance, Inc.Inline dispersal valve
US4402912 *Dec 23, 1981Sep 6, 1983Borg-Warner CorporationDevice to automatically add a controlled amount of corrosion inhibitor with a change in spring loading
US4419233 *Nov 18, 1981Dec 6, 1983Baker Marvin EChlorinator for a swimming pool
US4420463 *Feb 22, 1982Dec 13, 1983Nalco Chemical CompanyDry chemical feed system
US4519914 *Mar 31, 1980May 28, 1985Kenji EtaniMethod for treating swimming pool water
US4530120 *Mar 31, 1980Jul 23, 1985Kenji EtaniMethods and apparatus for bathing
US4555347 *Apr 20, 1984Nov 26, 1985Dowd Dennis H OIodine disinfection dispenser
US4564506 *May 23, 1983Jan 14, 1986Saputo Lorraine EWater treatment dispensing system
US4692314 *Apr 22, 1983Sep 8, 1987Kenji EtaniWater treatment systems
US4775485 *Sep 4, 1987Oct 4, 1988Kenji EtaniMethod for water treatment
US4842729 *Sep 5, 1986Jun 27, 1989Control Chemicals (Proprietary) LimitedTreatment of liquids
US4853131 *Mar 17, 1988Aug 1, 1989Kenji EtaniMethod for water treatment
US4867196 *Aug 31, 1988Sep 19, 1989Olin CorporationPool chemical dispenser
US4872222 *Jul 27, 1988Oct 10, 1989Pavlik Jonn PToilet-tank leak detector, chemical economizer
US4880547 *Mar 16, 1988Nov 14, 1989Kenji EtaniMethods for water treatment
US4917868 *Oct 30, 1987Apr 17, 1990Alexander Roy PPool chemical dispenser
US5076315 *Oct 30, 1990Dec 31, 1991King Joseph ADispersal valve and canister
US5089127 *Oct 19, 1990Feb 18, 1992Ppg Industries, Inc.Chemical feed apparatus
US5133381 *Oct 29, 1990Jul 28, 1992Olin CorporationDual range periodic chemical dispenser for swimming pools
US5201339 *Dec 6, 1991Apr 13, 1993Control Chemicals (Proprietary) LimitedTreatment of liquids
US5218983 *May 4, 1992Jun 15, 1993King Joseph ADispersal valve and canister
US5350509 *Nov 18, 1993Sep 27, 1994Nelson Robert LDeep water disbursement tube
US5384102 *Jul 28, 1993Jan 24, 1995Ppg Industries, Inc.Chemical feeder
US5433867 *Jan 14, 1994Jul 18, 1995Kisner; Kim T.Environmentally friendly chlorine or bromine dispenser
US5637230 *Oct 12, 1994Jun 10, 1997City Of ChandlerWater treatment method and apparatus for adding calcium hypochlorite to potable water
US5960808 *Jun 18, 1997Oct 5, 1999Ppg Industries Ohio, Inc.Method of controlling the amount of sanitizing agent in an aqueous medium
US6123842 *Aug 24, 1998Sep 26, 2000Control Chemicals (Proprietary) LimitedDispensing of water treatment substances
US6309538 *Oct 27, 1998Oct 30, 2001Polaris Pool Systems, Inc.Spa chemistry monitoring and chemical dispensing unit
US6337024Jul 13, 2000Jan 8, 2002Hammonds Technical Services, Inc.Chlorination apparatus and method
US6340431 *Aug 11, 2001Jan 22, 2002Polaris Pool Systems, Inc.SPA chemistry monitor and treatment unit
US6413416Nov 11, 1998Jul 2, 2002P.P.A. Water IndustriesWater treatment vessel with cartridge holder for holding tablets
US6432371 *Sep 17, 1999Aug 13, 2002Jack Oliver, Jr.Child proof chlorine dispenser with a three dimensional ornament
US6451271 *Aug 6, 2001Sep 17, 2002Hammonds Technical Services, Inc.Chlorination apparatus and method
US6471858Jan 21, 2000Oct 29, 2002Joseph A. KingWater treatment dispensers
US6511605 *Apr 3, 2001Jan 28, 2003Stellar Manufacturing CompanyDevice for automatically feeding soluble fluid treating agents in tablet form into a fluid body
US6531056Nov 16, 2001Mar 11, 2003Hammonds Technical Serv IncChlorination apparatus for controlling material dissolution rate
US6544487Nov 25, 1998Apr 8, 2003Ppg Industries Ohio, Inc.Chemical feeder
US6592766 *Sep 13, 2002Jul 15, 2003Joseph A. KingWater treatment dispensers
US6790353 *Aug 26, 2002Sep 14, 2004Solutia, Inc.Device for automatically feeding soluble fluid treating agents into a fluid body
US7065803 *Mar 5, 2002Jun 27, 2006Ecolab Inc.Method of dispensing cyanuric acid
US8852442Feb 22, 2011Oct 7, 2014Delaware Capital Formation, Inc.Solid chemical dissolver and methods
US20020185455 *Aug 26, 2002Dec 12, 2002Connelly Thomas V.Device for automatically feeding soluble fluid treating agents into a fluid body
US20100139148 *Dec 10, 2009Jun 10, 2010Barker Clay SFloating chum delivery device
USRE33861 *Apr 26, 1990Mar 31, 1992Olin CorporationPool chemical dispenser
EP1118588A2 *Jan 16, 2001Jul 25, 2001Joseph A. KingWater treatment dispensers
EP1118588A3 *Jan 16, 2001Jan 30, 2002Joseph A. KingWater treatment dispensers
WO1990001979A1 *Jul 24, 1989Mar 8, 1990Olin CorporationPool chemical dispenser
WO1999024366A1 *Nov 11, 1998May 20, 1999P.P.A. Water Industries (Proprietary Limited)Means for chemical water treatment
WO2000024991A1 *Aug 23, 1999May 4, 2000Polaris Pool Systems, Inc.Spa chemistry monitor unit
U.S. Classification422/264, 422/106, 137/268, 210/242.1, 422/310, 210/167.11, 422/274, 210/198.1, 422/265
International ClassificationC02F1/68
Cooperative ClassificationB01F13/0049, C02F2103/42, B01F1/0027, C02F1/688
European ClassificationC02F1/68P6
Legal Events
Dec 21, 1987AS03Merger
Effective date: 19851101
Dec 21, 1987ASAssignment
Effective date: 19851101