EP3938323A1 - Cartouches de puits filtrant - Google Patents

Cartouches de puits filtrant

Info

Publication number
EP3938323A1
EP3938323A1 EP20773003.7A EP20773003A EP3938323A1 EP 3938323 A1 EP3938323 A1 EP 3938323A1 EP 20773003 A EP20773003 A EP 20773003A EP 3938323 A1 EP3938323 A1 EP 3938323A1
Authority
EP
European Patent Office
Prior art keywords
filterwell
cartridge
face
filterwell cartridge
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20773003.7A
Other languages
German (de)
English (en)
Other versions
EP3938323A4 (fr
Inventor
David Guy
Jeffrey D. Johnson
Paul FREEBERG
Terry Goeman
Lyle ENDERSON
Darrin Swagel
Eric Barton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
King Technology Inc
Original Assignee
King Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by King Technology Inc filed Critical King Technology Inc
Publication of EP3938323A1 publication Critical patent/EP3938323A1/fr
Publication of EP3938323A4 publication Critical patent/EP3938323A4/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/688—Devices in which the water progressively dissolves a solid compound
    • 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
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges

Definitions

  • Dispensing cartridges are known in the art and are used to dispense sanitizing chemicals into bodies of waters such as pools and hot tubs through water contact with the dispersant within the dispensing cartridge.
  • the dispensing cartridges have a chamber for holding a dispersant and a set of variable openings that permits ingress and egress of water into the chamber to bring the water into contact with the dispersant therein. Since water conditions affect how and when the dispersant is released from the dispensing cartridges there are a number of different types of dispensing cartridges that have evolved for delivery of a sanitizing dispersant into a body of water.
  • An example of a free floating dispensing cartridge that gradually releases dispersant into a body of water as water seeps into the dispersant chamber in the dispensing cartridge is shown in U.S. patent
  • While the location of a dispensing cartridge in the filterwell has the advantage of keeping the dispensing cartridge out of the main tub area of the hot tub or spa and into a region where water flows therethrough the filterwell dispensing cartridge needs to be able to reliably deliver dispersant into the water as the water flows through the filterwell without interfering with the filtering action within the filterwell.
  • the flow of water through the filterwell which is a small compartment where water flow patterns change as a result of change of the activity level in the hot tub, can cause a free floating filterwell cartridge to be tossed about in the filterwell.
  • Such tossing action can affect the delivery rate of the cartridge as well as cause damage to cartridge filter in the filterwell and to the dispensing cartridge.
  • dispensing cartridges While replacement of a dispensing cartridge is important it is also desirable to have dispensing cartridges located in the filterwell in a position where the amount of delivery of the dispersant into the filterwell can be changed on-the-go.
  • changing the dispensing rate of dispersant needs to be convenient as well as easily accomplished by a person without any tools as changing the dispensing rate depends on an ongoing bacterial load in the hot tub.
  • Various dispensers have been placed proximate the filterwell including a dispenser mounted on the gate to the filterwell and a dispenser mounted within the core of the cartridge filter in the filterwell as shown in US patent 6,165,358. Neither of these devices allows a hot tub user to easily change the rate of dispersant therefrom.
  • the invention comprises an underwater dispensing cartridge that is removably securable below a water line within the filterwell of a hot tub or spa with the underwater dispensing cartridge herein referred to as a filterwell cartridge that includes at least two open compound faces that can sandwichingly support the filterwell cartridge in a dispensing condition within the filterwell so as not to interfere with the filtering action of the water cartridge filter and at the same time reliably deliver the dispersants from the filterwell cartridge into the body of water.
  • the filterwell cartridge having compound faces located on diametrical opposite sides with each of the compound faces engageable with faces of an open socket that is secured to structure within the filterwell to horizontally and vertically retain the filterwell cartridge in a static dispensing position without impeding water filtration through the filterwell while allowing the filterwell cartridge to dispense dispersants into the body of water in response to the water contact with the filterwell cartridge.
  • Figure 1 is a perspective view of a filterwell cartridge
  • Figure 2 is front side elevation view of the filterwell cartridge of Figure 1 with a cutaway to reveal a chamber in the dispensing cartridge;
  • Figure 2A is sectional view taken along lines 2A-2A of Figure 2;
  • Figure 2B is an isolated view showing rim position of a filterwell cartridge with respect to a jaw or socket of a cartridge holder;
  • Figure 2C is an isolated view showing rim position of a filterwell cartridge with respect to a further jaw or socket of a cartridge holder;
  • Figure 2D is an isolated view showing simultaneously rim engagement of the filterwell cartridge with opposing jaws of a cartridge holder
  • Figure 3 is a left side elevation view of the filterwell cartridge of Figure 1 showing the base relief;
  • Figure 4 is a backside elevation view of the filterwell cartridge of Figure 1 showing the extensions for holding the filterwell cartridge with respect to a filter cartridge holder;
  • Figure 5 is a right side elevation view of the filterwell cartridge of Figure 1 located below a water line in a filterwell;
  • Figure 6 is top view of the filterwell cartridge of Figure 1 revealing the vent holes in the top face of the filterwell cartridge with the concave side of the filterwell cartridge proximate a cartridge holder located in a filterwell;
  • Figure 7 is a bottom view of the filterwell cartridge of Figure 1 with the base in an open or dispensing condition;
  • Figure 8 is a bottom view of the filterwell cartridge of Figure 1 in a closed or non dispensing condition
  • Figure 8A is a sectional view of an extension on the filterwell cartridge
  • Figure 8B is a frontal view of the extension of Figure 8A;
  • Figure 8C is an isolated view of a portion of a cartridge holder mountable in a filterwell with a back face of a filterwell cartridge abutting the cartridge holder so that the openings in the filterwell cartridge and the cartridge holder coact to allow water access to a dispersant in the filterwell cartridge;
  • Figure 9 is a bottom plan view of the filterwell cartridge with circumferential rows of radial ports that provide for graduated control of the open area in the bottom of the housing of the filterwell cartridge;
  • Figure 10 is a perspective bottom view of a further dispensing cartridge; and Figure 10a is a bottom view of the dispensing cartridge of Figure 10a.
  • FIG 1 is a perspective view of a filterwell cartridge 10 and Figure 2, Figure 3, Figure 4 and Figure 5 are elevation views of the filterwell cartridge 10 while Figure 6 is a top view of the filterwell cartridge 10.
  • Figure 7, Figure 8, Figure 9 and Figure 10, Figure 10a are bottom views of the filterwell cartridge 10.
  • a benefit of the filterwell cartridge describe herein is that the filterwell cartridge has features that allow the filterwell cartridge to be hand mountable and hand releasable from a cartridge holder, which remains affixed to structure within the filterwell of a hot tub.
  • the filterwell cartridge as shown in Figure 2 includes an enclosed a rigid housing 12 having a domed top 15, a convex frusto conical sidewall i.e. convex sidewall 12b forming a front face and a concave frusto conical sidewall 12a, ( Figure 6) that together with a base 20 form a dispersant or dispensing chamber 19 for holding a dispersant 16, such as a halogen or a mineral, in a dispensable condition therein when the filterwell cartridge 10 is supported in a dispensing condition within a filterwell of a spa or the like.
  • a dispersant 16 such as a halogen or a mineral
  • housing 12 includes an external upper face 12u that is visually separated from an external lower face 12L by a decorative undulating ledge 12e that may be used for ease in hand grasping the filterwell cartridge or for securing the filterwell cartridge to a cartridge holder.
  • Base 20 of filterwell cartridge 10 includes a circumferential rim 11 with a tapering or frusto conical front face i.e. an arcuate face 1 Id that forms an acute angle Q with a rim base face 11c as an example of a filterwell cartridge 10 that can be used to facially secure the filterwell cartridge to a cartridge holder, that is, the example in Figure 2 shows the circumferential rim 11 has a radially outward flare with the bottom portion of the rim larger than a top portion of the rim. Also, in this example the filterwell cartridge 10 has a body that flares outward from the top of the filterwell cartridge to the bottom of the filterwell cartridge.
  • the geometrical facial features shown are used to secure the filterwell cartridge to a cartridge holder other geometrical facial features of the filterwell cartridge may be used to removably secure the filterwell cartridge to a cartridge holder without departing from the spirit and scope of the invention.
  • FIG. 6 shows the domed top 15 of filterwell cartridge 10 including a first top vent hole 15a, a second top vent hole 15b and a third top vent hole 15c a.
  • the vent holes 15a, 15b and 15c extend from the dispersant chamber 19 to a region outside the filterwell cartridge 10 for ingress and egress of water and or gas therethrough when the filterwell cartridge 10 is located below the water line in a hot tub or the like.
  • cartridge holder 41 and cartridge holder 41’ form a removable handle for supporting the filterwell cartridge in a filterwell through face to face clamping engagement of the handle and portions of an exterior face of the filterwell cartridge 10.
  • Figure 3 is a left side elevation view of the filterwell cartridge 10, which in conjunction with Figure 2 shows an arcuate relief face 11a in rim 11 that permits viewing access to a rotatable disk 39 that is rotational positionable in base 20 of filterwell cartridge 10 as shown in Figure 7 and Figure 8.
  • a further feature of arcuate relief face 1 la is that the angled arcuate sides of arcuate relief face 1 la allow a user to see a numeric scale on a rotatable disk for adjusting a dispensing rate with the rotatable disk located on a bottom end of the filterwell cartridge.
  • the rotateable disk 39 includes a face 20b with a dispensing rate scale 20c to enable front viewing of the dispensing rate setting of the rotatable disk 39 when the filterwell cartridge is mounted in a cartridge holder by observing the position of pointer 20a on base 20 through an opening 1 le in rim 11.
  • a frontal view of the filterwell cartridge 10 allows one to readily view rotatable disk 39 and scale 20b to adjust the delivery rate of dispersant therefrom.
  • This feature allows a user to adjust the rate of dispersant on-the-go by simply using arcuate relief face 1 la to focus on the opening 1 le as a user engages and rotates disk 39 to the proper setting.
  • the rotateable disk 39 is located opposite the concave rear face 12a, which is typically mounted against a face of a cartridge holder, to enable the rotatable disk 39 to be rotatably adjusted either with or without having remove the dispensing cartridge 10 from filterwell cartridge holder 52.
  • An example of a filterwell cartridge holder is shown in our copending application SN _ filed _ .
  • Figure 7 and Figure 8 show the rotatable disk 39, which is located in base 20 with the rotatable disk 39 having a first comma shaped opening 39a and a second comma shaped opening 39b although other shaped openings may be used.
  • Figure 7 shows disk 39 rotated in a first direction to an open condition to expose a first set of bottom ports 24 and a second set of bottom ports 25 each having openings therein to allow water access to the contents in filterwell cartridge 10.
  • Figure 8 shows the disk 39 rotated to a closed condtion with disk 39 obstructing openings in bottom ports 24 and bottom ports 25 that were previously exposed to prevent flow of water into or out of a bottom end of filterwell cartridge 10.
  • Figure 9 shows an alternate embodiment of a rotatable disk 60 having an arc shaped opening 61 and an arc shaped opening 63 for controlling the ingress and egress of water into the chamber 19 in the filterwell cartridge 10.
  • the ports in the end of filterwell cartridge 10 comprise a first set of graduated rectangular shaped radial ports 61a, 61b and 61c and a second set of graduated rectangular shaped radial ports 62a, 62b and 62c that can be exposed or covered through rotation of disk 60.
  • Figure 9 shows disk
  • FIG. 8 is a bottom view of filterwell cartridge 10 showing protrusions 25a and 25b extending therefrom and Figure 8A is a sectional isolated view of housing 12 showing the protrusion 25a on filterwell cartridge housing 12.
  • protrusion 25a and protrusion 25b are identical although they could have different configurations without departing from the spirit and scope of the invention.
  • Protrusion 25a extends
  • protrusion 25a includes an angled top face 25f for engagement with a lip 52a on housing 53 of filterwell filterwell cartridge holder 52 ( Figure 8C) and a lower face 25c that angles inward with protrusion 25a having a width T, which in this example extends sufficiently far from housing 12 (indicated by distance T) so as to lockingly engage a portion of a filterwell cartridge holder together with the arcuate face 41 and arcuate face 4G to thereby restrain the filterwell cartridge housing 12 from accidental displacement therein i.e. for example, a tilting or rotational displacement of the filterwell cartridge 10 within the filterwell cartridge holder 52.
  • FIG. 8C shows the angled top face 25f of protrusion 12a fits under and engages the underside of a curved a lip 52a, which is part of filterwell cartridge holder 52 and an identical top face 25g of protrusion 12b fits under and engages a curved lip 52b, which is a part of filterwell cartridge holder 52.
  • Figure 8C also shows a further portion of filterwell cartridge holder 52 and an arcuate face 41 of the filterwell cartridge holder 52 in engagement with the circumferential ring 11 on the base of filterwell cartridge 10 and an arcuate face 1 Id in engagement with a further portion of the filterwell cartridge holder 52.
  • Figure 8C is an isolated view of a portion of a filterwell cartridge holder 52 mountable in a filterwell with a back face 12a of a filterwell cartridge 10 abutting the filterwell cartridge holder 52 so that the bottom ports 73 and 74 in the filterwell cartridge 10 coact with the filterwell cartridge holder 52 to allow water access to a dispersant in the filterwell cartridge 10.
  • Figure 8C further shows that in this example filterwell cartridge protrusions 25a and 25b engage filterwell cartridge holder 52 through extension of the protrusions 25a and 25b through an open portion of the housing 53 of filterwell cartridge holder 52.
  • top angled stop surface 25f of protrusion 25a extends through an opening in the housing to engage a lip 52a in the filterwell cartridge holder 52 while the top angled stop surface 25g extends through a further opening the housing to engages a lip 52b in the filterwell cartridge holder 52 to restrain motion of the filterwell cartridge.
  • Figure 8B is a frontal view of the extension or protrusion of Figure 8A showing a first side face 25d and a second side face 25e that may be used to engage the housing of filterwell cartridge holder 52 to prevent or resist side-to-side or rotational displacement of the filterwell cartridge 10 within a filterwell cartridge holder 52.
  • extension 25a and extension 25b are identical, however, extension 25a and 25b may take other forms or geometrical shapes without departing from the spirit and scope of the invention.
  • Figure 10 and Figure 10A show a bottom view of dispensing cartridge 10 with a different shaped rotatable disk 69 having a circular rim 70 with protrusions 70b spaced around rim 70 that engage detents 70a on rim 75, to hold the disk 69 in a rotated position.
  • the detents 70a and protrusions 70b are such that the engagement of a detent and a protrusion provides resistant to rotation of disk and thus preventing an accidental change in the size of the open port area 73 and 74.
  • a user can overcome the resistance and rotate disk 69 by applying a rotational force on web 76 to rotate disk 69 to the proper setting by placing a finger on one side of web 76 and a thumb on the opposite side of web 76.
  • Lip 71 and lip 72 may be used as a location guide for placing one’s finger and thumb on diametrical web 76.
  • the open port area comprises circular openings 73 and 74 that are variable openings that are located in the bottom of the dispenser cartridge 10 and are visible in the segment shaped openings 69c and 69d in disk 69 that can be opened through rotation of disk 69.
  • rotation of disk 69 can also cover openings 73 and 74 and thus limit the open port area in the bottom of the dispenser cartridge 10. While circular openings are shown the size and shape of the openings as well as the number of openings can be used without departing from the spirit and scope of the invention. In some instance one may have a pattern of same size openings where some of the openings are blind and others extend through the disk 69 to provide a uniform pattern that enhances ones view of the disk.
  • Figure 4 shows a back side of the filterwell cartridge 10 including a first protrusion or extension comprising a radial rib 25a and a second protrusion or extension comprising a radial rib 25b extending laterally outward from the concave rear face 12a for engaging a cartridge holder or the like.
  • the protrusions may be used to prevent displacement of filterwell cartridge 10 within a cartridge holder. That is, the protrusions i.e.
  • radial ribs 25a and 25b on rear face 12a can be used to lock the filterwell cartridge to a cartridge holder to maintain the filterwell cartridge 10 in a non rotational condition on a cartridge holder as water flows past or through the filterwell cartridge, which is located proximate a filter in the filterwell of a hot tub or spa.
  • the ribs when in engagement with the cartridge holder, can also prevent or resist tipping of the filterwell cartridge within the cartridge holder as illustrated in Figure 8C.
  • filterwell cartridge 12 includes an external channel 12c extending axially downward from the domed top 15 with the channel available for use when assembling filterwell cartridge 10.
  • the ribs 25a and 25b are located on a concave rear face 12a of the filterwell cartridge 10 for engagement with a filterwell cartridge holder 52 with the filterwell cartridge diverging toward the base formed by circumferential ring 11 then at the top of the filterwell cartridge for removably securing the filterwell cartridge 10 to cartridge holder arm 41 and cartridge holder41’ which includes a shelf surface 41a and a shelf surface 41a’.
  • the ribs 25a and ribs 25b are dimensioned so that the ribs 25a and 25b are in tight engagement or frictional
  • engagement filterwell cartridge holder 52 to assist in holding the dispensing cartridge 10 on carriage holder 41 , 41’ i.e. working engagement with each.
  • the engagement therebetween is such that ribs 25a and 25b snap into a holding position (see Fig. 8C) on the filterwell cartridge holder 52 as the rim face 11 simultaneously engages cartridge holder 41 and cartridge holder 4G to provide sensory assurance that is, through touch or an audible sound or both that the cartridge 10 is properly seated in a dispensing condtion on the filterwell cartridge holder 52.
  • FIG 5 is a right side elevation view of the filterwell cartridge of Figure 1 and Figure 6 showing filterwell cartridge 10 including a concave rear face 12a and a convex front face 12b with the front face 12b mating with the concave rear face 12a to create a downward diverging dispersant chamber 19 within filterwell cartridge 10.
  • a water line 9 located above the domed top 15 shows that in this example the filterwell cartridge 10 is located in a dispensing position below the water line when supported therein by a first cartridge holder 41 and a second cartridge holder 4G ( Figure 6) located on the opposite sides of the filterwell cartridge 10.
  • top 15 of filterwell cartridge 10 has a first vent hole 15a a second vent 15b, and a third vent hole 15c for ingress and egress of air or water therethrough although more or less vents may be used.
  • top 15 is seamlessly joined to the concave rear face 12a and the convex front face 12b to form an upper portion of the dispersant chamber 19 with the base 20 forming a bottom to the dispersant chamber 19 as shown in Figure 2.
  • cartridge holder 41 and cartridge holder 4G are secured to structure (not shown) within the filterwell to hold the filterwell cartridge 10 in a dispensing condtion.
  • Figure 6 illustrates a further feature of filterwell cartridge 10 with the filterwell cartridge mountable proximate a filterwell cartridge holder 52 within the filterwell with extension or radial rib 25a and 25b on the filterwell cartridge 10 engageable with a filterwell cartridge holder 52 to hold the filterwell cartridge 10 and dispensing ports thereon in a dispensing condtion within a filterwell.
  • a feature of the invention shown herein is that a user can quickly mount or remove the filterwell cartridge 10 from a cartridge holder, which may be located below the water line in a filterwell of a hot tub or the like, through pressure mating of surface features on the filterwell cartridge 10 to surface features on a cartridge holder with the respective mating surface features held in engagement with each other through radial pressure exerted through a cartridge holder that has lateral extensions located on opposite sides of the filterwell cartridge 10. The mating engagement therebetween preventing filterwell cartridge 10 displacement in each of three orthogonal axes with respect to a filterwell cartridge holder.
  • the aforesaid mating engagement eliminating the need to mechanically fasten or latch the filterwell cartridge 10 to a cartridge holder even though the filterwell cartridgelO is subject to irregular fluid forces that can toss the filterwell cartridge 10 about in the filterwell.
  • irregular fluid forces that can toss the filterwell cartridge 10 about in the filterwell.
  • swirling flow or turbulent flow of water in the filterwell may introduce dynamic forces on the filterwell cartridge that can toss the filterwell cartridge about, which may upset the dispensing rate of the filterwell cartridge.
  • Figure 2A is a sectional view of filterwell cartridge 10 showing a rim face l id on filterwell cartridge 10 in relation to a first open face cartridge holder 41 and a second open face cartridge holder 41’ , which may be part of a single cartridge holder that mounts to structure within the filterwell, for example to a cap or feed pipe on a water filter cartridge.
  • a first arcuate face 41a and a second arcuate face 41b of cartridge holder 41 are located between a first diameter line 28 and a second diameter line 29 with C 2 identifying a first circumferential region of filterwell cartridge between the right end of the diameter line 28 and the right end of diameter line 29 by an arc angles 0 between the diameter lines 28 and 29.
  • C identifies a second circumferential region or face on filterwell cartridge 10 that extends between diameter line 28 and diameter line 29 also identified by an arc angle 0 between the diameter lines 28 and 29 with this example showing the arc angle 0 less than 90 degrees.
  • C t and C 2 contain opposite convex, arcuate faces with the arcuate face C, are engageable with a resilient socket 34 formed by shelf face 41a’ and side face 41b’ and the arcuate face C 2 engageable with a resilient socket formed by shelf face 41a and arcuate face 41b to hold the filterwell cartridge 10 in a fixed dispensing condition within a hot tub filterwell through open face to face arcuate engagement therebetween.
  • the arcuate face C, and C 2 are shown as continuous, however, the faces may contain multiple segments for engagement with a filterwell cartridge.
  • Figure 2B; Figure 2C and Figure 2D show the arcuate side face 1 Id and a flat rim base face 11c on the filterwell cartridge 10.
  • Figure 2D shows the filterwell cartridge 10 cantileverly engaged in a face-to-face condition with a socket 33 in first cartridge holder 41 and a socket 34 in second cartridge holder 4G.
  • the cantilever engagement supports the filterwell cartridge housing 12 in a stable dispensing condition within the swirling waters of a filterwell as well as resists orthogonal displacement i.e. 3 axis lateral displacement of the filterwell cartridge housing 12 with respect to the cartridge holder 41 and cartridge holder 41’ .
  • Figure 2B is an isolated, partly sectional view of a portion of housing 12 and rim 11 revealing a first circumferential toe 18, which is part of rim 11 , with toe 18 having an open compound face or arcuate face 1 Id that is located an acute angle Q to the face 1 lc for engagement with a socket 33 in cartridge holder 41.
  • Figure 2 C is also an isolated, partial sectional view of a cartridge holder 4G having a flat face or base 41a’ and an arcuate face 41b’ located at an acute angle Q to flat face or base 41a’ to form a socket 34.
  • An acute angle of the arcuate face 1 Id to face 1 lc ensures that when the arcuate face 1 Id and face 1 lc are in face to face contact with the cartridges holders 41 and 41’ the overhang of the cartridge holder arcuate face 41b and 41b’ produced by the arcuate face 41b and 41b’ being at an acute angle resists lifting the filterwell cartridge 10 out of the cartridge holders 41 and 4G.
  • the acute angle Q may be selected on the tolerances one wants to maintain between cartridge holder and the housing. For example, an acute angle of about 82 degrees may be sufficient to hold the cartridge holders and the housing in engagement with each other for one set of dimensional tolerances while in other cases the dimensional tolerances may require the acute angle to be more or less than 80 degrees.
  • the compound face described herein are open faces and have at least two surfaces with one of the surfaces arcuate and the other a plane surface.
  • Other types of compound faces where the faces may have other shapes and are not in the same plane may also be used for mating engagement between a filterwell cartridge housing and a cartridge holder to support a filterwell cartridge therein though pressure engagement between opposed compound faces on the cartridge holder and the filterwell cartridge.
  • Figure 2C is an isolated, sectional view of a portion of housing 12 and rim 11 revealing a first circumferential toe 18’ with toe 18’ having a compound or arcuate face lid that is located an acute angle Q to the flat rim base face 1 lc.
  • Figure 2C is also an isolated, partial sectional view of a cartridge holder 41’ having a flat arcuate base 41a’ and an arcuate face 41b’ located at an acute angle to flat base 41a’ .
  • Figure 2D reveals the sandwichingly support of the filterwell dispenser housing 12 through face to face engagement between the open faces of the rim 11 and filterwell cartridge housing 12 and the open faces of cartridge holder 41 and cartridge holder 4G to prevent or resist lateral or vertical displacement of the filterwell cartridge 10 through compound face engagement of at least two faces of the filterwell cartridge 10 through force F, on cartridge holder 41 and force F j on cartridge holder 41’.
  • Figure 2D shows the filterwell cartridge 10 facially mounted to filterwell cartridge holders 41 and 41’ without needing to latch or fasten the filterwell cartridge to the cartridge holder since the filterwell cartridge housing is restrained from motion in three mutually perpendicular axis through the open face to face contact between rim 11 and cartridge holders 41 and 41’.
  • arcuate section C, and arcuate section C 2 each have the same radius of curvature R to enable face to face mating engagement between a cartridge holder 41 located on one side of filterwell cartridge 10 and a cartridge holder 4G located on the opposite side of filterwell cartridge 10.
  • FIG. 2A and Figure 2D show that arcuate face C, and C 2 are located on the diametrical opposite side of filterwell cartridge 10 so that arcuate cartridge holder face 41b and cartridge holder face 41a form a first socket 33 and arcuate cartridge holder face 41b’ and cartridge holder face 41a’ form a second socket 34 that are in simultaneous contact engagement with rim 11 of the filterwell cartridge 10 to prevent or resist lateral or horizontal movement of the filterwell cartridge 10 with respect to the cartridge holder 41or cartridge holder 4G.
  • cartridge holder engagement with diametrical opposed arcuate faces C, and C 2 on filterwell cartridge 10 provides three dimensional securement of the filterwell cartridge 10 to the cartridge holders 41 and 41’ through cantileverly engagement without the need to penetrate the exterior faces of the filterwell cartridge in order to retain the filterwell cartridge on cartridge holders 41 and 4G.
  • the filterwell cartridge 10 includes a first open compound face 18 where surfaces of the first open compound face are such that they extend in three orthogonal directions to provide a filterwell cartridge region that can be mated to a holder having complimentary opposite faces to postionally restrain the dispensing cartridge in orthogonal directions.
  • the filterwell cartridge including a second open compound face 18’ where surfaces of the second open compound face are such that they also extend in three orthogonal directions to provide a further filterwell cartridge region that can be mated to the holder having further complimentary opposite faces.
  • a feature of housing securement through open compound faces is that it eliminates the need for latches or other mechanical attachments to hold the filterwell cartridge in a stable dispensing position within the swirling waters in a filterwell thereby providing quick release of the filterwell cartridge through release of the compressive forces on opposite sides of the filterwell cartridge or conversely providing quick attachment through applying a compressive force to opposite sides of the filterwell cartridges.
  • the mating of the open compound faces of a filterwell cartridges with the mating or complimentary opposite faces of a cartridge holder coact to maintain filterwell cartridge 10 in a stable dispensing condtion within the swirling waters found in a filterwell.
  • the filterwell cartridge 10 contains facial features that are peripherally supportable in a quick attachment mode solely through facial engagement of compound surfaces on opposite sides of the filterwell cartridge. Conversely, the filterwell cartridge is also supported in a quick relapse mode through facial disengagement of compound surfaces on the filterwell cartridge.
  • the method further includes controllably delivering a dispersant to water within a filterwell by placing a quick attach and quick release filterwell cartridge having a housing with a vented chamber having a dispersant therein into the filterwell through resiliently and compressively engaging a first compound face on the housing with a first cartridge holder and resiliently and compressively engaging a second compound face on the housing with a second cartridge holder with the compressively engaged faces of the filterwell cartridge supporting the filterwell cartridge in a dispensing condtion proximate a water filter located within the filterwell.

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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)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne une cartouche de puits filtrant comportant des orifices de distribution de dispersant directement dans un puits filtrant d'une cuve thermale, d'un spa, ou analogue, la cartouche de puits filtrant pouvant être supportée de manière périphérique et postionnable dans un mode de libération rapide par une coopération faciale de surfaces composées situées sur des côtés opposés de la cartouche de puits filtrant.
EP20773003.7A 2019-03-15 2020-03-11 Cartouches de puits filtrant Pending EP3938323A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962919523P 2019-03-15 2019-03-15
PCT/US2020/000012 WO2020190354A1 (fr) 2019-03-15 2020-03-11 Cartouches de puits filtrant

Publications (2)

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WO2024194600A1 (fr) * 2023-03-21 2024-09-26 Rentokil Initial 1927 Plc Distributeur de larvicide

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WO2020190354A1 (fr) 2020-09-24
AU2020241097A1 (en) 2021-07-29
CA3126259A1 (fr) 2020-09-24
EP3938323A4 (fr) 2022-11-09

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