US3794061A - Water softener valve - Google Patents

Water softener valve Download PDF

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US3794061A
US3794061A US00196621A US3794061DA US3794061A US 3794061 A US3794061 A US 3794061A US 00196621 A US00196621 A US 00196621A US 3794061D A US3794061D A US 3794061DA US 3794061 A US3794061 A US 3794061A
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ports
port
water
balls
valve
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US00196621A
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J Horvath
C Nickols
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BRUNER Corp A CORP OF DELAWARE
Aqua Chem Inc
Raytec Inc
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Aqua Chem Inc
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Assigned to AQUA-CHEM HOLDING, INC., A CORP. OF DE reassignment AQUA-CHEM HOLDING, INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AQUA-CHEM, INC. A DE CORP.
Assigned to AQUA-CHEM, INC. reassignment AQUA-CHEM, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE JAN. 18, 1982. Assignors: AQUA-CHEM HOLDING, INC.
Assigned to BRUNER CORPORATION, 4767 NORTH 32ND ST., MILWAUKEE, WI A CORP. OF DE reassignment BRUNER CORPORATION, 4767 NORTH 32ND ST., MILWAUKEE, WI A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AQUA-CHEM, INC.
Assigned to RAYTEC WATERGROUP COMPANY, L.P., reassignment RAYTEC WATERGROUP COMPANY, L.P., ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BRUNER CORPORATION
Anticipated expiration legal-status Critical
Assigned to RAYTEC, INC. reassignment RAYTEC, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: RAYTEC WATERGROUP COMPANY, L.P., A DELAWARE LIMITED PARTNERSHIP
Assigned to BRUNER CORPORATION, A CORP. OF DELAWARE reassignment BRUNER CORPORATION, A CORP. OF DELAWARE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). APRIL 2, 1990 DELAWARE Assignors: RAYTEC INC., A CORP. OF DELAWARE
Assigned to RAYTEC, INC. reassignment RAYTEC, INC. NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 03/20/1990 Assignors: RAYTEC WATERGROUP COMPANY, L.P.
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/166Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles at right angles to the closure members
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/6198Non-valving motion of the valve or valve seat
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86389Programmer or timer
    • Y10T137/86445Plural, sequential, valve actuations
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/87265Dividing into parallel flow paths with recombining
    • Y10T137/87338Flow passage with bypass
    • Y10T137/87362Including cleaning, treating, or heat transfer feature
    • Y10T137/8737Water treatment feature

Definitions

  • Conventional water softeners are generally programmed to operate automatically through the well known cycles of service, backwash, brine slow rinse, fast rinse, and brine tank water refill. This programmed operation is achieved by means of acontrol valve which directs the flow of source water to the mineral tank and brine tank, soft or hard water to the service outlet, and unwanted water (during backwash and rinses) to drain.
  • acontrol valve which directs the flow of source water to the mineral tank and brine tank, soft or hard water to the service outlet, and unwanted water (during backwash and rinses) to drain.
  • Numerous control valves have been proposed in the past, the construction of such valves have varied but the function has remained generally the same, namely to achieve the above mentioned cycles.
  • This invention is directed to the problem of providing the water softener cycles and, among its general objects, is to provide a simplified and effective control valve by means of which such cycles. can be achieved.
  • FIG. 1 is a perspective of a control valve embodying this invention with parts broken away to illustrate the interior of the valve and being somewhat in schematic form so as to better illustrate the operation of the overall valve;
  • FIG. 4 is a bottom plan view of the structure shown in FIG. 2;
  • FIG. 5 is a section 'view taken generally along line 5-5 in FIG. 3;
  • FIG. 7 is a section view taken 7-7 in FIG. 3;
  • FIG. 9 is a section view taken generally along line 99 of FIG. 3;
  • FIG. 10 is a section view taken generally along line 1010 of FIG. 6 and with operational parts removed;
  • Valve body 12 is basically a three piece member including a main section 18, a top wall 20, and a bottom wall 22.
  • the body pieces are made of a suitable plastic material, for example a plastic presently available commerically as Arcylafil 640-35 provides satisfactory regenerally along line sults.
  • the pieces 18, 20, and 22 are connected by a suitable bonding adhesive and a tongue-in-groove type connection to provide'a leak proof seal for the interior of the valve body.
  • FIG. 1 is somewhat of a general showing of the valve eliminating some details of constructions which have, however, been illustrated in other Figs.
  • main section 18 includes an inlet port 24 in sidewall 64 for entry of hard water; an outlet port 26 also in sidewall 64 for exit of soft water for system usage; an opening 28 opening in bottom wall 22 (shown in dotted lines in FIG. 4 and in section in FIG. 11) through which hard water is directed to the mineral tank for treatment; an opening 30 in central wall 58 and generally aligned with an opening 31 through bottom wall 22 through which soft water returns to the valve; port 32 in sidewall 66 through which brine is drawn from the brine tank to be channeled through the valve to the mineral tank and through which replacement water is directed to the brine tank; and an outlet 34 in sidewall 64 connected to drain for discharge of water during, for example, the fast and slow rinse cycles for the mineral bed.
  • Hub 36 extending laterally from sidewall 66, is adapted to receive a flow regulator valve 38, commonly referred to as a dole valve and which maintains a constant volume flow rate to drain outlet 34.
  • Hub 40 in which port 32 is formed, includes a check valve assembly 42 positioned in bore 44. Port 32 communicates through the check valve and opening 46 in wall 58 with passage P and this channeling is used in directing brine from the brine tank to the mineral bed for regeneration as will be described hereinafter.
  • Hub 40 includes a second bore 48 which carries a valve 50 (in FIG. the assemblies in the bores have been removed for purposes of illustration). Bore 48 communicates with bore 44 through a cross passage 52 which enters the bore 44 behind ball 54 of the check valve assembly 42. This channeling is utilized to direct water to the brine tank for refilling the brine tank after the mineral bed regeneration cycle. There is sufficient clearance between the valve member 50 and the inner walls of bore 48 to permit flow to passage 52.
  • Wall 58 of main valve section 18 is disposed in a generally central location in the valve and extends between end walls 60, 62, and side walls 64, 66, the central, end and side walls being molded in one piece.
  • the central wall carries the control valve ports, numbered 1 through 8 in the drawings, through which flow is directed as a result of selective opening of the ports by operation of the cam tank.
  • Vertical walls are also provided and project on both sides of wall 58 and function to define flow channels associated with the ports for directing water in a manner which will become evident as this description proceeds, the walls will be numbered as required in the description.
  • Wall 58 also includes holes 68 and 70 which communicate with each other via channeling and port 1 and hole 72 which is operationally between ports 6 and 8 and in the flow channeling to the brine tank.
  • Ejector assembly 74 (FIGS. 7 and 8) is mounted in bore 76 and communicates with passage 78. Passage 78 has open communication with passage P, which communicates through opening 46, check valve assembly 42 and brine check valve 16 with the brine tank. Ejector 64 is operative to create a vacuum through the passages just described, i.e., P, and 46, causing ball 54 to be removed from its seat and brine to be drawn from the brine tank.
  • Ports 1-8 are normally closed and are selectively opened for flow to achieve the conventional cycles of service, backwash, brine slow rinse, and fast rinse during which the brine tank is also refilled.
  • the closure of ports I7 is achieved by balls A-G one of which is associated with each of the ports as illustrated in FIG. 1.
  • Each of the balls AG is made of a material heavier than water so that they do not float, for example glass.
  • Port 8 is closed by the combination of metal ball H, disc 144, and lever 134, a positive seal off is achieved at this port where even a small amount of leakage cannot be tolerated.
  • Each of the ports l-7 which cooperate with a glass ball, is provided with a removable seat member 92 of suitable material which is positioned in a respective port and provides a seat for receiving a respective ball A-G.
  • the seats 92 fit into each port and have an O-ring 93 associated therewith to insure a sea]. It will be noted that seat 92a at port 3 is a double seat to cooperate with both balls C and I. Being removable the seats can be removed and replaced during service as desired.
  • Disc 144 is made of rubber, or the like, and seats directly on the end of extension 95 which forms port 8 and is held in place by ball H and lever 134.
  • Balls A-G are all located above wall 58 as viewed in FIGS. 1 and 2 and, as will appear when the operational cycles are explained, the passages and channeling influencing flow direct all flow such that flow to a port when it is to be open and pass flow is from above wall 58. This produces flow over the balls tending to seat the balls in their respective ports. Thus water pressure urges the balls into the ports and they must be positively displaced to open the ports and when released are returned to engagement in their ports under the influence of the water.
  • a second ball I is associated with port 3 and is located on the underside of wall 58.
  • Ball I is generally made of a material which will float (e.g., polypropylene) so that it will normally try to assume a position seated in and closing port 3. However, when flow occurs down through port 3 it is readily displaced. Ball H holds disc 144 on port 8 and when the ball is released by lever 134 the inherent water pressure under the disc raises the disc to open the port.
  • balls A-G normally tend to assume a position secured in their respective ports and a relatively simple arrangement is proposed for unseating the balls to open their respective ports. Being unable to float and disposed over the upperside of wall 58, which is normally horizontal, and with influenced flow being over the balls, the balls arebiased into engagement in their respective ports without the use of springs. Although springs can be used, the free movement of the balls when released from the ports is preferred.
  • the arrangement for unseating the balls includes a number of levers 96 extending through top section for engagement with balls A-G.
  • Levers 96 are rigid members of a suitable metal, such as brass, and are held captive in resilient discs 100 seated in a plate 102 overlying top section 20. Levers 96 are vulcanized to the discs providing a sealed connection, discs 100 are in turn seated in openings 106. The levers extend through clearance openings 110 in top section 20.
  • Discs 100 are made of resilient material, e.g., rubber, and the inherent bias of these discs cause levers 96 to assume a generally upright position, spaced from, i.e., not in contact with, their respective balls A-G.
  • the resilient discs oppose movement of the levers in a port opening direction and return the levers to the upright position after the opening force is removed.
  • a notch and projection arrangement is provided between discs 100 and openings 106 locating the discs and thereby orienting the levers.
  • cams 112, 114, 116, 118, 120, 122, 124, and 126 Movement of the levers to engage and unseat the balls is achieved by cams 112, 114, 116, 118, 120, 122, 124, and 126 as can be seen in FIG. 1.
  • Cams 112-126 are provided withsuitable cam lobes to engage and move the levers and all are mounted on a shaft 128 which is driven by a timer (not shown) programmed to cycle the cams to achieve the necessary water softener cycles.
  • cams 112-126 selectively operate their respective levers 96, and 134, to pivot the levers into engagement with and move the balls against water pressure to unseat the balls as required to achieve the various water softener operations.
  • lever 134 ball H is moved to free disc 144.
  • cams 112-124 carry lobes and the rise portion of the cams are used to operate their respective levers to displace balls A-G.
  • cam 126 is adapted to operate its lever 134 on a fall portion of the cam and hence a lever arrangement has been provided to accommodate this reversal of this operation.
  • cam 126 is intended to control the brine tank refill cycle and, therefore, is made adjustable to provide the prescribed amount of water to recharge the brine tank after the brine cycle. More specifically, cam 126 includes a first cam disc 126a and a second cam disc 126b.
  • Cam disc 126a is fixed to shaft 128 whereas disc 126b can be rotated relative to the shaft whereby the cam fall opening can be set at a maximum where faces 130 and 132 of disc 126a are both exposed but can be reduced by exposing face 135 and moving that face toward face 132.
  • Lever 134 is supported on a pin 136 for pivotal movement.
  • Lever 134 includes a projection 142 which rides on the rise portion of cam 126 and holds lever 134 such that ball H urges disc 144 into engagement with port 8.
  • projection 142 falls into the opening defined between surfaces 130 and 132 or 135 and 132, spring ball H is released and the water pressure under disc 144 lifts the disc to open port 8.
  • cover plate 140 serves to hold resilient discs 100 and 104 in their respective openings, this cover plate and outer housing 146 were removed in FIG. 1.
  • Cover plate 140 is attached to member 102 and member 102 to top section 20 by a suitable adhesive.
  • Screw 137 is threaded into lever 134 and makes the actual engagement with ball H to thereby provide a measure of adjustment in the force with which the disc closes port 8.
  • the service cycle will continue until the point is reached wherein the zeolite bed requires regeneration.
  • the first step in regeneration is a backwash cycle which produces a reversed flow through the zeolite bed to loosen the bed.
  • the levers associated with balls C and G are moved from engagement with those balls allowing the balls to seat in and close ports 3 and 7.
  • Cams 112, 110, and 122 engage their operating levers to displace balls A, D, and F and open ports 1, 4, and 6, all other ports remain closed.
  • Port 4 is also open during the backwash cycle and this port has direct communication with hard water entering inlet 24 through opening 80.
  • the hard water passes from opening 80 through passage P and port 4 which has open communication with the underside of port 3 through channel 4a so that hard water can flow directly to and through service outlet 26 to meet water demands during the backwash cycle.
  • port 4 remains open throughout the regeneration cycle to provide hard water service at this time. In accordance with conventional practice, the regeneration cycle takes place during the early morning hours so that the lack of soft water is not critical and hard water is sufficient to satisfy the demands at that time.
  • ball I will be urged toward its seat in port 3 to insure closure of that port during the backwash cycle.
  • a vacuum is created in area 78, creating a vacuum through passage P,, opening 46, and in the area of check valve 42.
  • a pressure drop occurs across ball 54 of the check valve unseating the ball and causing brine to be drawn from the brine tank through the brine check valve and port 32.
  • the brine is mixed with the water being discharged into the mineral tank and flows down through the zeolite bed. This will continue until the brine solution has been completely drawn from the brine tank at which time the conventional brine tank flow check valve will operate to interrupt communication between the valve, specifically port 32, and the interior of the brine tank.
  • the brine circulates through the zeolite bed and returns to the valve through the opening 31. From passage P return flow proceeds through opening 30 to passage P down through port 2 to passage P (which is isolated from passage P, by wall 87 Port 2 communicates with opening 70 so that the brine solution flows up through opening 70 to and through drain outlet 34.
  • a fast rinse cycle is provided.
  • This fast rinse cycle is achieved by cam 114 remaining in engagement with its lever 96 to hold ball B away from port 2 and cam 124 engages its lever 96 to displace ball G from port 7 so that ports 2 and 7 are open, together with port 4 which maintains hard water service.
  • hard water enters inlet 24, a portion thereof flowing to service through port 4 and another portion flowing through port 7 and from port 7 through passage P and opening 28 to and through the zeolite bed. It will be noted at this point that port 7 is larger than port 5 so that a greater quantity of water is being directed through the bed during fast .rinse as compared to slow rinse.
  • Hard water passes down through the bed and returns as soft water through opening 31 to passage P and through opening and passage P to open port 2, which having open communication with hole 70, allows the rinse water to proceed directly through outlet 34 to drain.
  • the valve Upon the completion of the fast rinse cycle, the valve operates to establish a service setting and service of soft water is resumed as described previously and until a subsequent regeneration cycle is called for.
  • a water softener valve comprising, in combination,
  • means defining a housing means defining an inlet opening into the interior of said housing for admitting source water into said housing, means defining a service outlet opening into the interior of said housing for delivering water for service,
  • lever means movable into selective engagement with said spherical valve members are all positioned on said spherical valve members for selectively disthe same side of said first wall placing said spherical valve members from their reand said lever means are normally spaced from said spective ports and at an angle relative to the axis of balls when released from said means for moving said ports to thereby modify the orientation of said said lever means. spherical valve members to said ports whereby 6.
  • the water softener valve of claim 5 upon movement of said lever means out of engageincluding means defining a drain outlet in said housment with said spherical valve members a different ing, seating surface thereof will be returned to said seat wherein said flow passages provide a path to said serby the flow of said water, vice outlet past one of said ports and a path to said means for moving said lever means to displace said drain past said same port,
  • spherical valve members from their respective and including a spherical valve member positioned ports, on a first side of said one port opposite to the side a plurality of resilient members supported on said upon which said first mentioned spherical valve housing, members are located. and wherein said lever means'extend through said re- 7.
  • said silient members and said resilient members are spherical valve members are balls and the ball on said stressed when said lever means are moved to displace said spherical valve members and the inherfirst side of said one port is lighter than water and the balls on the opposite side of said ports are heavier than water.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A water softener control valve has a number of cam operated valves each of which includes a ball located at a port. A lever is associated with each ball and lever movement by the cams unseats the balls to open the ports. The ports are located in a common, generally horizontal wall and internal generally vertical walls associated with the ports define channeling through which water is directed in achieving the service, backwash, brine slow rinse, and fast rinse cycles of the water softener, and in addition the brine tank water refill after the mineral bed of the water softener has been regenerated. Water pressure urges the balls toward their respective ports and holds the balls seated in the ports. One port is exposed, during the regeneration portion of the water softener program, to both return flow from the mineral tank on one side of the port and service flow to the service outlet on the other side. That port has a ball on both sides of the port to insure closure of the port and isolation of the flow on both sides of the port.

Description

[ Feb. 26, 1974 ABSTRACT A water softener control valve has a number of cam operated valves each of which includes a ball located at a port. A lever is associated with each ball and lever movement by the cams unseats the balls to open the ports. The ports are located in a common, generally sociated with' the ports define channeling through 8 Claims, 11 Drawing Figures horizontal wall and internal generally vertical walls aswhich Water is directed in achieving the service, backwash, brine slow rinse, and fast rinse cycles of the C02b 1/22 water softener, and in addition the brine tank water H [581 Field ofSearch ............................137/5991, refill after the mineral bed of the water softener has w l37/624.l8, 624.2, 624.13, 624.17, 627, been regenerated. Water pressure urges the balls 330; 210/139, 140 toward their respective ports and holds the balls seated in the ports. One port is exposed, during the regeneration portion of the water softener program, to both return flow from the mineral tank on one side of the port and service flow to the service outlet on the 137/449 X other side. That port has a ball on both sides of the 137/5991 port to insure closure of the port and isolation of the 137mm 2 flow on both sides of the port 137/6241 X WATER SOFTENER VALVE Chester R. Nickels, Sycamore, lll. I Assignee: Aqua-Chem, Inc., Milwaukee, Wis.
Nov. 8, 1971 Appl. No.: 196,621
.. 137/330, 137/624.l8, l37/599.l
137/DIG. 2, 449,
References Cited UNITED STATES PATENTS 8/1953 Hjulian........................... l/l95l Badeaux.......................... 10/1899 Lunken..........................
[75] lnventors: John F. Horvath, Milwaukee, Wis;
Attorney, Agent, or Firm-Fred Wiviatt; 'Ralph G. Hohenfeldt; John C. Cooper, Ill
Umted States Patent 1191 Horvath et al.
[22] Filed:
Primary Examiner-Alan Cohan w I I PATENTEDFEBZEIHH 3.794.061
sum 2 or a Oz; M
WATER SOFTENER VALVE BACKGROUND OF INVENTION This invention relates to 'water Softener valves and, more particularly, to the control valve arrangement by means of which the various water softener cycles are achieved.
Conventional water softeners are generally programmed to operate automatically through the well known cycles of service, backwash, brine slow rinse, fast rinse, and brine tank water refill. This programmed operation is achieved by means of acontrol valve which directs the flow of source water to the mineral tank and brine tank, soft or hard water to the service outlet, and unwanted water (during backwash and rinses) to drain. Numerous control valves have been proposed in the past, the construction of such valves have varied but the function has remained generally the same, namely to achieve the above mentioned cycles.
SUMMARY OF INVENTION This invention is directed to the problem of providing the water softener cycles and, among its general objects, is to provide a simplified and effective control valve by means of which such cycles. can be achieved.
For the achievement of ,that and other objects, this invention proposes a construction wherein a ballis associated with each of a number of the valve-ports in the valve. The balls normally close the ports to flow and are displaced from their respective ports in a programmed fashion. The ports are preferably located in a generally common wall with walls projecting from both sides of the common wall in preselected orientation to define channels associated with the ports through which flow occurs. The halls are selectively unseated to open the ports to influence flow through the valve, and to and from the brine and mineraltanks, to produce the various opertional cycles. The control valve also has suit able connections between its interior channeling and a water source, a service connection, the brine and mineral tanks, and a drain.
The ball arrangement affords a simplified and yet highly effective valving arrangement. The balls are generally free in the area of their respective ports and the seating surface of each ball in its port will be continuously changing throughout valve operation thereby insuring positive and effective seal-off over extended periods of service which increases reliability and reduces maintenance attention. Preferably, the balls being free at their respective ports, are urged into seating relationship in their respective ports only by water pressure; this allows the balls to rotate while disengaged from their seats thereby changing the valve seating surface from one operation to another. More specifically, the channeling within the valve is such that balls exposed to water flow are generally exposed from above relative to their respective ports so that they are urged into engagement in their respective ports by water, and the balls are preferably heavier than water to enhance this inherent biasing effect. Where a port is exposed to water flow on both sides two balls can be provided to insure port closure; for example, in the preferred em bodiment during operation one port is exposed on its underside to flow to service while its upperside is exof the discs moves the levers away from the balls when the ports are to be closed.
Other objects and advantages will be pointed out in or be apparent from the specification and claims, as will obvious modifications of the embodiments shown in the drawings, in which:
- FIG. 1 is a perspective of a control valve embodying this invention with parts broken away to illustrate the interior of the valve and being somewhat in schematic form so as to better illustrate the operation of the overall valve;
FIG. 2 is a longitudinal section through the main portion of the control valve with operational parts removed for ease of illustration;
FIG. 3 is a top plan view of the structure shown in FIG. 2
FIG. 4 is a bottom plan view of the structure shown in FIG. 2;
FIG. 5 is a section 'view taken generally along line 5-5 in FIG. 3;
FIG. 6 is a section view taken generally along line 6+6 of FIG. 3;
FIG. 7 is a section view taken 7-7 in FIG. 3;
FIG. '8 is a section view taken generally along line 8-8 of FIG. 4;
FIG. 9 is a section view taken generally along line 99 of FIG. 3;
FIG. 10 is a section view taken generally along line 1010 of FIG. 6 and with operational parts removed; and
FIG. 11 is a partial view of a part of the bottom section of the valve illustrating the openings through which connection is made to the mineral tank.
DESCRIPTION OF PREFERRED EMBODIMENT A water softener valve 10 is illustrated in the drawings and includes a valve body 12, a rotatable cam bank 14, a brine flow check valve 16 (FIG. 5), and suitable connections (not shown) to the brine tank and the mineral tank which contains the conventional ion exchange material such as zeolite. The mineral tank and the brine tank can be any conventional construction and neither is necessary to an understanding of this invention and hence they have not been illustrated and will not be described; this is also true of the brine flow check valve and it will not be described in detail. It should also be appreciated at the outset of this description that, in addition to the just mentioned tanks, much of the system elements and connections are also conventional, e.g., the connections to the mineral and brine tanks, and hence, although they may be referred to in a general manner therein, they too will not be described in detail as their construction and operation should be readily understood by those skilled in this art.
Valve body 12 is basically a three piece member including a main section 18, a top wall 20, and a bottom wall 22. The body pieces are made of a suitable plastic material, for example a plastic presently available commerically as Arcylafil 640-35 provides satisfactory regenerally along line sults. The pieces 18, 20, and 22 are connected by a suitable bonding adhesive and a tongue-in-groove type connection to provide'a leak proof seal for the interior of the valve body. FIG. 1 is somewhat of a general showing of the valve eliminating some details of constructions which have, however, been illustrated in other Figs.
In general terms, main section 18 includes an inlet port 24 in sidewall 64 for entry of hard water; an outlet port 26 also in sidewall 64 for exit of soft water for system usage; an opening 28 opening in bottom wall 22 (shown in dotted lines in FIG. 4 and in section in FIG. 11) through which hard water is directed to the mineral tank for treatment; an opening 30 in central wall 58 and generally aligned with an opening 31 through bottom wall 22 through which soft water returns to the valve; port 32 in sidewall 66 through which brine is drawn from the brine tank to be channeled through the valve to the mineral tank and through which replacement water is directed to the brine tank; and an outlet 34 in sidewall 64 connected to drain for discharge of water during, for example, the fast and slow rinse cycles for the mineral bed. Hub 36, extending laterally from sidewall 66, is adapted to receive a flow regulator valve 38, commonly referred to as a dole valve and which maintains a constant volume flow rate to drain outlet 34. Hub 40, in which port 32 is formed, includes a check valve assembly 42 positioned in bore 44. Port 32 communicates through the check valve and opening 46 in wall 58 with passage P and this channeling is used in directing brine from the brine tank to the mineral bed for regeneration as will be described hereinafter. Hub 40 includes a second bore 48 which carries a valve 50 (in FIG. the assemblies in the bores have been removed for purposes of illustration). Bore 48 communicates with bore 44 through a cross passage 52 which enters the bore 44 behind ball 54 of the check valve assembly 42. This channeling is utilized to direct water to the brine tank for refilling the brine tank after the mineral bed regeneration cycle. There is sufficient clearance between the valve member 50 and the inner walls of bore 48 to permit flow to passage 52.
Wall 58 of main valve section 18 is disposed in a generally central location in the valve and extends between end walls 60, 62, and side walls 64, 66, the central, end and side walls being molded in one piece. The central wall carries the control valve ports, numbered 1 through 8 in the drawings, through which flow is directed as a result of selective opening of the ports by operation of the cam tank. Vertical walls are also provided and project on both sides of wall 58 and function to define flow channels associated with the ports for directing water in a manner which will become evident as this description proceeds, the walls will be numbered as required in the description.
Wall 58 also includes holes 68 and 70 which communicate with each other via channeling and port 1 and hole 72 which is operationally between ports 6 and 8 and in the flow channeling to the brine tank.
Ejector assembly 74 (FIGS. 7 and 8) is mounted in bore 76 and communicates with passage 78. Passage 78 has open communication with passage P, which communicates through opening 46, check valve assembly 42 and brine check valve 16 with the brine tank. Ejector 64 is operative to create a vacuum through the passages just described, i.e., P, and 46, causing ball 54 to be removed from its seat and brine to be drawn from the brine tank. To produce the vacuum, the ejector is exposed to the main water flow through inlet 24 via opening 80 in wall 58, port 5, hole 82 in the sidewall 84 communicating with passage P below port 5, channel 86, channel 88 and down through ejector 74 into passage P which communicates with opening 28 in bottom wall 22 to tank. A venturi effect is created by this flow through the ejector in area 78 which creates the vacuum condition described above causing brine to be drawn from the brine tank and mixed with the water being directed into the tank through the ejector.
Ports 1-8 are normally closed and are selectively opened for flow to achieve the conventional cycles of service, backwash, brine slow rinse, and fast rinse during which the brine tank is also refilled. In accordance with this invention, the closure of ports I7 is achieved by balls A-G one of which is associated with each of the ports as illustrated in FIG. 1. Each of the balls AG is made of a material heavier than water so that they do not float, for example glass. Port 8 is closed by the combination of metal ball H, disc 144, and lever 134, a positive seal off is achieved at this port where even a small amount of leakage cannot be tolerated. Each of the ports l-7, which cooperate with a glass ball, is provided with a removable seat member 92 of suitable material which is positioned in a respective port and provides a seat for receiving a respective ball A-G. The seats 92 fit into each port and have an O-ring 93 associated therewith to insure a sea]. It will be noted that seat 92a at port 3 is a double seat to cooperate with both balls C and I. Being removable the seats can be removed and replaced during service as desired.
Disc 144 is made of rubber, or the like, and seats directly on the end of extension 95 which forms port 8 and is held in place by ball H and lever 134. Balls A-G are all located above wall 58 as viewed in FIGS. 1 and 2 and, as will appear when the operational cycles are explained, the passages and channeling influencing flow direct all flow such that flow to a port when it is to be open and pass flow is from above wall 58. This produces flow over the balls tending to seat the balls in their respective ports. Thus water pressure urges the balls into the ports and they must be positively displaced to open the ports and when released are returned to engagement in their ports under the influence of the water. A second ball I is associated with port 3 and is located on the underside of wall 58. During a portion of the overall softener program port 3 is exposed to flow on both sides and the purpose of ball I is to insure closure of port 3. This flow above and below port 3 occurs during the backwash, brine, and rinse cycles. Ball I is generally made of a material which will float (e.g., polypropylene) so that it will normally try to assume a position seated in and closing port 3. However, when flow occurs down through port 3 it is readily displaced. Ball H holds disc 144 on port 8 and when the ball is released by lever 134 the inherent water pressure under the disc raises the disc to open the port.
The use of balls to control opening and closing of the ports provides a very simple and yet markedly reliable valve arrangement. Positive seal-off is insured, and without the need for precise location of the valve closure member with respect to the port. Furthermore, the balls at ports l-7 are generally free once released from the port and can rotate virtually without restriction so that seal-off does not occur through repeated engagement between the port and the same surface on the valve closure member. This minimizes problems due to wear and decreases the need for maintenance attention while increasing valve reliability.
lt should be noted at this point that having provided a common wall 58 for the valve ports, and that wall being generally horizontal in use, contributes in permitting the use of the simple valve closure arrangement provided by the balls. Although port 8 is elevated above the level of ports 17 this can still be considered for practical purpose, as part of the common wall as the elevation of the upper part of the port 8 is merely to facilitate actuation.
As stated above balls A-G normally tend to assume a position secured in their respective ports and a relatively simple arrangement is proposed for unseating the balls to open their respective ports. Being unable to float and disposed over the upperside of wall 58, which is normally horizontal, and with influenced flow being over the balls, the balls arebiased into engagement in their respective ports without the use of springs. Although springs can be used, the free movement of the balls when released from the ports is preferred.
More specifically, the arrangement for unseating the balls includes a number of levers 96 extending through top section for engagement with balls A-G. Levers 96 are rigid members of a suitable metal, such as brass, and are held captive in resilient discs 100 seated in a plate 102 overlying top section 20. Levers 96 are vulcanized to the discs providing a sealed connection, discs 100 are in turn seated in openings 106. The levers extend through clearance openings 110 in top section 20. Discs 100 are made of resilient material, e.g., rubber, and the inherent bias of these discs cause levers 96 to assume a generally upright position, spaced from, i.e., not in contact with, their respective balls A-G. The resilient discs oppose movement of the levers in a port opening direction and return the levers to the upright position after the opening force is removed. To properly orient the levers relative to the balls, a notch and projection arrangement is provided between discs 100 and openings 106 locating the discs and thereby orienting the levers.
Movement of the levers to engage and unseat the balls is achieved by cams 112, 114, 116, 118, 120, 122, 124, and 126 as can be seen in FIG. 1. Cams 112-126 are provided withsuitable cam lobes to engage and move the levers and all are mounted on a shaft 128 which is driven by a timer (not shown) programmed to cycle the cams to achieve the necessary water softener cycles. As the shaft 128 is rotated, cams 112-126 selectively operate their respective levers 96, and 134, to pivot the levers into engagement with and move the balls against water pressure to unseat the balls as required to achieve the various water softener operations. ln the case of lever 134, ball H is moved to free disc 144.
At this point the construction of cam 126 and its operative connection to lever 134 should be noted. As illustrated, cams 112-124 carry lobes and the rise portion of the cams are used to operate their respective levers to displace balls A-G. In contrast, cam 126 is adapted to operate its lever 134 on a fall portion of the cam and hence a lever arrangement has been provided to accommodate this reversal of this operation. Moreover, cam 126 is intended to control the brine tank refill cycle and, therefore, is made adjustable to provide the prescribed amount of water to recharge the brine tank after the brine cycle. More specifically, cam 126 includes a first cam disc 126a and a second cam disc 126b. Cam disc 126a is fixed to shaft 128 whereas disc 126b can be rotated relative to the shaft whereby the cam fall opening can be set at a maximum where faces 130 and 132 of disc 126a are both exposed but can be reduced by exposing face 135 and moving that face toward face 132.
Lever 134 is supported on a pin 136 for pivotal movement. Lever 134 includes a projection 142 which rides on the rise portion of cam 126 and holds lever 134 such that ball H urges disc 144 into engagement with port 8. When projection 142 falls into the opening defined between surfaces 130 and 132 or 135 and 132, spring ball H is released and the water pressure under disc 144 lifts the disc to open port 8.
It will also be noted that cover plate serves to hold resilient discs 100 and 104 in their respective openings, this cover plate and outer housing 146 were removed in FIG. 1. Cover plate 140 is attached to member 102 and member 102 to top section 20 by a suitable adhesive.
Screw 137 is threaded into lever 134 and makes the actual engagement with ball H to thereby provide a measure of adjustment in the force with which the disc closes port 8.
With this structural description of the overall valve in mind, a general description of the operationof the valve through the various water softener cycles in a complete water softener program will now be made. Starting with the service cycle and assuming that the zeolite bed is properly conditioned for softening and that the brine tank is properly charged with water and salt, cams 116 and 124 will have moved balls C and G to open ports 3 and 7. During the service cycle only ports 3 and 7 are open and all other ports are closed.
Hard water enters inlet 24 and inlet 24 opens into passage P, which is isolated from the underside of wall 58 by wall 81. Inlet water must then flow up through opening 80 on both sides of wall 83 into passages P and P This exposes ports 4, 5, 6, and 7 to inlet flow at all times. Port 7 being the only one that is open, water flows down through port 7 to passage P from which it is directed to and through opening 28 to the zeolite bed in the mineral tank. Soft water returns from the mineral tank through opening 31 into passage P up through opening 30 into passage P and down through open port 3 (the water flowing through port 3 will unseat ball 1), into passage P and out service outlet 26 to provide soft water as required.
The service cycle will continue until the point is reached wherein the zeolite bed requires regeneration. The first step in regeneration is a backwash cycle which produces a reversed flow through the zeolite bed to loosen the bed. At this point the levers associated with balls C and G are moved from engagement with those balls allowing the balls to seat in and close ports 3 and 7. Cams 112, 110, and 122 engage their operating levers to displace balls A, D, and F and open ports 1, 4, and 6, all other ports remain closed. With this arrangement, hard water entering inlet 24 again flows through opening 80 but, in this instance, it proceeds to port 6 and down into passage P which communicates with opening 31, ports 2 and 3 also having open communication with Passage P through opening 30 being closed, flow proceeds directly to the bottom of the mineral tank so that the hard water is directed from the bottom of the tank up through the zeolite bed to loosen the bed. This water returns to the valve through opening 28, into passage P Port 1 being open return flow is now directed through vertical wall opening 67, passage Pg, valve 38, and up through opening 68. The water flows upwardly through opening 68 then proceeds down through open port 1 into passage P and up again through opening 70 to be discharged through outlet 34 to drain.
Port 4 is also open during the backwash cycle and this port has direct communication with hard water entering inlet 24 through opening 80. The hard water passes from opening 80 through passage P and port 4 which has open communication with the underside of port 3 through channel 4a so that hard water can flow directly to and through service outlet 26 to meet water demands during the backwash cycle. It will be understood that port 4 remains open throughout the regeneration cycle to provide hard water service at this time. In accordance with conventional practice, the regeneration cycle takes place during the early morning hours so that the lack of soft water is not critical and hard water is sufficient to satisfy the demands at that time. Moreover, it will be noted that ball I will be urged toward its seat in port 3 to insure closure of that port during the backwash cycle.
After the backwash cycle, the actual regeneration starts as the brine slow rinse cycle takes place. During this cycle, ports 2 and 5 are open, cams 114 and 120 having engaged and pivoted levers 96 to displace balls B and E, that is in addition to port 4 being open to maintain hard water service. All other ports are closed during this cycle. It is necessary to draw the brine from the brine tank. To accomplish this, hard water entering inlet 24 is directed to ports 4 and 5 through passage P Hard water flows down through port 5, through wall opening 82 an up through passage 86 to area 88 from which it is directed down through ejector assembly 74. The hard water passes through the ejector assembly directly into passage P and out opening 28 to the mineral tank. In passing through ejector 74, a vacuum is created in area 78, creating a vacuum through passage P,, opening 46, and in the area of check valve 42. A pressure drop occurs across ball 54 of the check valve unseating the ball and causing brine to be drawn from the brine tank through the brine check valve and port 32. The brine is mixed with the water being discharged into the mineral tank and flows down through the zeolite bed. This will continue until the brine solution has been completely drawn from the brine tank at which time the conventional brine tank flow check valve will operate to interrupt communication between the valve, specifically port 32, and the interior of the brine tank. The brine circulates through the zeolite bed and returns to the valve through the opening 31. From passage P return flow proceeds through opening 30 to passage P down through port 2 to passage P (which is isolated from passage P, by wall 87 Port 2 communicates with opening 70 so that the brine solution flows up through opening 70 to and through drain outlet 34.
After completion of the brine slow rinse cycle, a fast rinse cycle is provided. This fast rinse cycle is achieved by cam 114 remaining in engagement with its lever 96 to hold ball B away from port 2 and cam 124 engages its lever 96 to displace ball G from port 7 so that ports 2 and 7 are open, together with port 4 which maintains hard water service. With this arrangement hard water enters inlet 24, a portion thereof flowing to service through port 4 and another portion flowing through port 7 and from port 7 through passage P and opening 28 to and through the zeolite bed. It will be noted at this point that port 7 is larger than port 5 so that a greater quantity of water is being directed through the bed during fast .rinse as compared to slow rinse. Hard water passes down through the bed and returns as soft water through opening 31 to passage P and through opening and passage P to open port 2, which having open communication with hole 70, allows the rinse water to proceed directly through outlet 34 to drain. Upon the completion of the fast rinse cycle, the valve operates to establish a service setting and service of soft water is resumed as described previously and until a subsequent regeneration cycle is called for.
One other operational cycle is to be described and that is the brine refill cycle. During the fast rinse cycle when ports 2 and 7 are open, cam 126 has also been rotated to allow lever 134 to pivot and ball H to be displaced by disc 144 and open port 8. Water entering inlet 24 passes from opening 80 through port 7 and to passage P to be directed to the zeolite bed in the mineral tank as described above. During the fast rinse cycle, cam 122 will have engaged and operated its lever 96 to displace ball F from port 6. Port 6 being open, hard water is permitted to flow from inlet 24 and opening 80 down through port 6 to passage P on the underside of opening 72 which has open communication with port 6. This water flows up through opening 72 and down through open port 8 into passage P and to valve in bore 48. From valve 50 this water proceeds through passage 52 to the check valve assembly 42, entering the check valve assembly behind ball 54 so that the water can be directed into the brine tank. Ball 54 is held closed in that it is exposed on its right side to inlet pressure. From the check valve water flows to the brine tank. Adjustable cam 126 will determine the length of time that port 8 remains open and when the amount of water necessary to fill the brine tank has been supplied, ball H will be moved toward and will reseat disc 144 in port 8 closing that port and interrupting the refill cycle. It will also be noted that port 6 is at times exposed on its underside to return flow from the mineral tank but the upperside of port 6 is at all times exposed to inlet pressure in passage P which will be greater, and hence is held closed.
Although but several embodiments of this invention have been illustrated and described, it will be apparent to those skilled in the art that various other modifications may be made without departing from the spirit of this invention or from the scope of the appended claims.
We claim:
1. A water softener valve comprising, in combination,
means defining a housing, means defining an inlet opening into the interior of said housing for admitting source water into said housing, means defining a service outlet opening into the interior of said housing for delivering water for service,
means defming tank openings in said housing adapted to be connected to a mineral tank and a brine tank,
means defining a first wall within said housing,
a plurality of valve ports in said first wall, a generally spherical valve member associated with each of said ports, means defining a plurality of walls projecting laterally 3. The water softener valve of claim 2 wherein said balls are made of non-resilient material,
and including annular seat members releasably mounted in each of said ports and engageable by on both sides of said first wall in association with 5 said balls in closing said ports. said ports to define flow passages within said hous- 4. The water softener valve of claim 2 ing communicating with said ports and arranged wherein one of said balls cooperates with a resilient relative to said ports and'said inlet; outlet, and tank disc to open and close said resilient disc on the port openings to direct water through said valve and through which brine tank refill occurs, through said ports from the spherical valve mem- 0 and including cam means operatively engaging said her side thereof so that water flow through said one of said balls and being adjustable to vary the valve urges said spherical valve members into enlength of time said brine tank refill port is open. gagement with said ports, 5. The water softener valve of claim 1 wherein lever means movable into selective engagement with said spherical valve members are all positioned on said spherical valve members for selectively disthe same side of said first wall placing said spherical valve members from their reand said lever means are normally spaced from said spective ports and at an angle relative to the axis of balls when released from said means for moving said ports to thereby modify the orientation of said said lever means. spherical valve members to said ports whereby 6. The water softener valve of claim 5 upon movement of said lever means out of engageincluding means defining a drain outlet in said housment with said spherical valve members a different ing, seating surface thereof will be returned to said seat wherein said flow passages provide a path to said serby the flow of said water, vice outlet past one of said ports and a path to said means for moving said lever means to displace said drain past said same port,
spherical valve members from their respective and including a spherical valve member positioned ports, on a first side of said one port opposite to the side a plurality of resilient members supported on said upon which said first mentioned spherical valve housing, members are located. and wherein said lever means'extend through said re- 7. The water softener valve of claim 6 wherein said silient members and said resilient members are spherical valve members are balls and the ball on said stressed when said lever means are moved to displace said spherical valve members and the inherfirst side of said one port is lighter than water and the balls on the opposite side of said ports are heavier than water.
ent bias thereof as a result of said stressing movement of said levers releases said spherical valve members for return to their respective ports when said lever means are released from said means for moving said lever means.
2. The water softener valve of claim 1 wherein said spherical valve members are in the form of balls heavier than water and all balls are positioned on the same side of said first wall.
by said balls in closing said other ports.

Claims (8)

1. A water softener valve comprising, in combination, means defining a housing, means defining an inlet opening into the interior of said housing for admitting source water into said housing, means defining a service outlet opening into the interior of said housing for delivering water for service, means defining tank openings in said housing adapted to be connected to a mineral tank and a brine tank, means defining a first wall within said housing, a plurality of valve ports in said first wall, a generally spherical valve member associated with each of said ports, means defining a plurality of walls projecting laterally on both sides of said first wall in association with said ports to define flow passages within said housing communicating with said ports and arranged relative to said ports and said inlet, outlet, and tank openings to direct water through said valve and through said ports from the spherical valve member side thereof so that water flow through said valve urges said spherical valve members into engagement with said ports, lever means movable into selective engagement with said spherical valve members for selectively displacing said spherical valve members from their respective ports and at an angle relative to the axis of said ports to thereby modify the orientation of said spherical valve members to said ports whereby upon movement of said lever means out of engagement with said spherical valve members a different seating surface thereof will be returned to said seat by the flow of said water, means for moving said lever means to displace said spherical valve members from their respective ports, a plurality of resilient members supported on said housing, and wherein said lever means extend through said resilient members and said resilient members are stressed when said lever means are moved to displace said spherical valve members and the inherent bias thereof as a result of said stressing movement of said levers releases said spherical valve members for return to their respective ports when said lever means are released from said means for moving said lever means.
2. The water softener valve of claim 1 wherein said spherical valve members are in the form of balls heavier than water and all balls are positioned on the same side of said first wall.
3. The water softener valve of claim 2 wherein said balls are made of non-resilient material, and including annular seat members releasably mounted in each of said ports and engageable by said balls in closing said ports.
4. The water softener valve of claim 2 wherein one of said balls cooperates with a resilient disc to open and close said resilient disc on the port through which brine tank refill occurs, and including cam means operatively engaging said one of said balls and being adjustable to vary the length of time said brine tank refill port is open.
5. The water softener valve of claim 1 wherein said spherical valve members are all positioned on the same side of said first wall and said lever means are normally spaced from said balls when released from said means for moving said lever means.
6. The water softener valve of claim 5 including means defining a drain outlet in said housing, wherein said flow passages provide a path to said service outlet past one of said ports and a path to said drain past said same port, and including a spherical valve member positioned on a first side of said one port opposite to the side upon which said first mentioned spherical valve members are located.
7. The water softener valve of claim 6 wherein said spherical valve members are balls and the ball on said first side of said one port is lighter than water and the balls on the opposite side of said ports are heavier than water.
8. The water softener valve of claim 7 wherein one of said balls cooperates with a resilient disc which seats directly on the walls of its respective port, and including annular seat members releasably mounted in each of said other ports and engageable by said balls in closing said other ports.
US00196621A 1971-11-08 1971-11-08 Water softener valve Expired - Lifetime US3794061A (en)

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US4535937A (en) * 1983-04-20 1985-08-20 Fagan Joseph H Graded actuation of hydraulically actuated pool cleaning heads
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US20040217190A1 (en) * 2003-04-17 2004-11-04 Silva Anthony Michael Water irrigation system
US20070181194A1 (en) * 2006-02-08 2007-08-09 Thomas Honzelka Bypass valve with flapper valve elements for a water treatment apparatus
US20070254820A1 (en) * 2006-04-28 2007-11-01 Tze-Chi Jao Diblock monopolymers as lubricant additives and lubricant formulations containing same
JP5397842B1 (en) * 2012-09-28 2014-01-22 三浦工業株式会社 Flow control valve
US20140373885A1 (en) * 2013-06-21 2014-12-25 Whirlpool Corporation Dishwasher
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Cited By (15)

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Publication number Priority date Publication date Assignee Title
US4535937A (en) * 1983-04-20 1985-08-20 Fagan Joseph H Graded actuation of hydraulically actuated pool cleaning heads
WO1997027413A1 (en) * 1996-01-26 1997-07-31 Autotrol Corporation Adaptable control valve for fluid treatment system
US5910244A (en) * 1996-01-26 1999-06-08 Autotrol Corporation Adaptable control valve for fluid treatment system
US20040217190A1 (en) * 2003-04-17 2004-11-04 Silva Anthony Michael Water irrigation system
US7568501B2 (en) * 2006-02-08 2009-08-04 Ge Osmonics, Inc. Bypass valve with flapper valve elements for a water treatment apparatus
US20070181194A1 (en) * 2006-02-08 2007-08-09 Thomas Honzelka Bypass valve with flapper valve elements for a water treatment apparatus
US20070254820A1 (en) * 2006-04-28 2007-11-01 Tze-Chi Jao Diblock monopolymers as lubricant additives and lubricant formulations containing same
JP5397842B1 (en) * 2012-09-28 2014-01-22 三浦工業株式会社 Flow control valve
WO2014049836A1 (en) * 2012-09-28 2014-04-03 三浦工業株式会社 Flow passage control valve
US9260324B2 (en) 2012-09-28 2016-02-16 Miura Co., Ltd. Flow passage control valve
US20140373885A1 (en) * 2013-06-21 2014-12-25 Whirlpool Corporation Dishwasher
US9713414B2 (en) * 2013-06-21 2017-07-25 Whirlpool Corporation Dishwasher having a conduit framework
DE102016000317A1 (en) * 2016-01-13 2017-07-13 Audi Ag Multi-way valve for a heating and cooling system of a vehicle
US20220170578A1 (en) * 2020-12-01 2022-06-02 Minebea Mitsumi, Inc. Fluid manifold apparatus, in particular water distribution apparatus
US11821560B2 (en) * 2020-12-01 2023-11-21 Minebea Mitsumi Inc. Fluid manifold apparatus, in particular water distribution apparatus

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