FIELD OF INVENTION

[1] The present invention generally pertains to a dosing pump. BACKGROUND OF THE INVENTION

[2] Dosing pumps are positive displacement fluids drives, designed to inject a first inflowing matter (additive) into an inflow of a second fluid (solvent) hence forming mixture (product) of a predetermined volumetric ratio of the two or more flows.

[3] Commercially available dosing pumps known to have an ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused. Air release mechanisms also available in dosing pumps. Likewise, a piston stroke detector configured to both indicate pump functionality and, upon further processing of the piston strokes, calculate additive inflow is available. Nevertheless, an all-in-one unified dosing pump into which the aforesaid multiple important features are integrated without increasing pump’s size and decreasing reliability of the operation, increasing maintenance costs, without deteriorating flow parameters is still an unmet need.

SUMMARY OF THE INVENTION

[4] It is hence one object of the invention to disclose a dosing pump which comprises, inter alia, at least one first inlet for at least one solvent; at least second inlet for at least one additive, a reciprocating piston for mixing the solvent with the additive during a suction stroke and for discharging the mixture from an outlet. The dosing pump further comprises at least two mechanisms of the following three: (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; (ii) a piston stroke detecting mechanism configured to both indicate pump and, upon further processing of said piston strokes, calculate additive inflow parameters; and (Hi) an air release mechanism.

[5] Another object of the invention is to discloses a dosing pump as defined above, wherein the pump comprises, inter alia, the following three mechanisms: (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; (ii) apiston stroke detecting mechanism configured to both indicate pump functionality and, upon further processing of said piston strokes, calculate additive inflow parameters; and (Hi) an air release mechanism.

[6] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the engine switching mechanism is configured to allow drawn up of the additive when

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SUBSTITUTE SHEET (RULE 26) handle is configured ON; and stop to draw up of additive when handle is configured OFF, yet allowing solvent still allowed to flow through.

[7] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the engine switching mechanism comprises an ON/OFF applicator. The applicator is selectable from a group consisting of a lever, handle, pedal, switch, button, solenoid and knob. The switching mechanism further comprises an elongated ON/OFF bar interconnected with the applicator in one side, and with a piston stroke stopper at the opposite side, the stopper is configured to stop pump’s piston form reciprocating so that engine work is paused.

[8] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the engine switching mechanism comprises a variable applicator selected from a lever, handle, pedal, switch, button, solenoid, or knob; and an elongated ON/OFF bar interconnected with the applicator in one side, and with a piston stroke stopper at the opposite side, the stopper, when engaged with pump’s piston, or otherwise positioned adjacent to the piston, configured to decrease piston’s reciprocating movement so that engine work is variably altered.

[9] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the ON/OFF switching is selected from a group consisting of manually operated mechanism, semi-automatically operated mechanism, computer-operated (automatic) mechanism, a mechanism operated by electric actuator, hydraulic actuator, pneumatic actuator, linear actuator, rotating actuator, corded operated mechanism, wireless operated mechanism, and any combination thereof.

[10] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the piston stroke detector is selected from a group consisting of electromagnets, including reed sensors, optical sensors, movement sensors including accelerometer, displacement sensor, capacitive sensor, inductive sensor, temperature sensor, proximity sensor, volumetric sensor, and a pressure sensor.

[11] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the air-release mechanism is selected from a group consisting of manually operated mechanism, semi-automatically operated mechanism, computer-operated (automatic) mechanism, air release valve mechanism, degassing valve mechanism, integral relief valve, a bleed to exhaust pressure and priming valve for a back-pressure valve, a mechanism operated by electric actuator, hydraulic actuator, pneumatic actuator, linear actuator, rotating actuator, corded operated mechanism, wireless operated mechanism, and any combination thereof.

[12] Another object of the invention is to discloses a dosing pump as defined in any of the above, wherein the air-release mechanism is selected from a group consisting of a mechanism

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SUBSTITUTE SHEET (RULE 26) comprising a regulator having a closed configuration and at least one open configuration, the regulator is selected from a normally-closed regulator, normally-open air release regulator, gaspressure regulated regulator, cover valve, knob, normally-closed air release knob, including a normally-closed air release knob screw, tap, cover, stopcock, purge, faucet, expandable nozzle or orifice valve, and any combination thereof.

[13] Another object of the invention is to discloses a method for mounting dosing pump as defined in any of the above, wherein the method comprises steps of affixing the pump to a mounting bracket and immobilizing mounting bracket to a solid structure.

[14] Another object of the invention is to discloses a method for mounting dosing pump as defined in any of the above, wherein the method comprises step of dismantling the pump form its mounting bracket.

[15] Another object of the invention is to discloses a method for locking a dosing pump as defined in any of the above, wherein the method comprises step of turning adjustment nut proportioning sleeve (500) to select the desired metered quantity, the proportioning cylinder (502) are activated by turning the locking nut proportioning sleeve (500) in order to bring the proportioning cylinder (502) ring into its second desire position, the proportioning locking nut (501) can be than set to lock proportioning sleeve (500) position, of abutment against the adjustment nut in order to rotationally block the adjustment nut by complementarity of form.

[ 16] Another object of the invention is to discloses a method for unlocking a dosing pump as defined in any of the above, wherein the method comprises step of disengaging proportioning locking nut (501) nut in order to bring the proportioning cylinder (502) ring into its first position of abutment from the proportioning locking nut (501) adjustment nut, in order to render the proportioning sleeve (500) adjustment nut free to rotate with respect to the cylinder support (499) ring.

[17] Another object of the invention is to discloses a method for monitoring a dosing pump as defined in any of the above. The method comprises step of, by means of the piston stroke detecting mechanism, detecting at least one piston stroke parameter selected from a group consisting of stroke rate; time of first stroke during a given period of time, time of last stroke during the period of time, time of first stroke, time of last stroke, stroke rate variability, stroke rate as a function of time, stroke rate variability as a function of time, and any combination thereof; optionally, by means of an optional pres sure- variation detecting mechanism, detecting flow pressure variation; and further optionally, by means of an optional temperature sensor, detecting fluid temperature.

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SUBSTITUTE SHEET (RULE 26) [18] Another object of the invention is to discloses a method for monitoring a dosing pump as defined in any of the above. The method comprises step of, by means of either or both a processor intercommunicated with the piston stroke detecting mechanism, and optionally intercommunicated with either or both pres sure- variation detecting mechanism and/or by means of the piston stroke detecting mechanism itself; by means of an optional pressurevariation detecting mechanism and/or an optional temperature sensor, providing at least one of the following four: (A) If the piston stroke parameter, and optionally fluid pressure and/or fluid temperature are within a predefined at least one first range, indicating pump is functional, working in a normal manner, effective or working in a conforming manner. (B) if otherwise at least one piston stroke parameter, and optionally fluid pressure and/or temperature are outside a predefined at least one allowed first range and/or within a predefined at least one second forbidden range, providing an alarm that the pumps is either nonfunctional or working in an out of norm manner, ineffective or working in a non-conforming manner. (C) indicating the at least one piston stroke parameter, and optionally fluid pressure and/or fluid temperature. (D) by means of either or both a negative feedback mechanism and/or a positive feedback mechanism, regulating parameters related to one or more of the following flows: the solvent inflow flux, solvent flow pressure or solvent fluid temperature; the additive inflow flux, additive flow pressure or additive temperature; and the mixed product outflow flux, mixed flow pressure or mixed flow temperature.

[19] It is in the scope of the invention wherein the alarm is provided adjacent to the dosing pump, e.g., utilizing various sound alarms, lights and light flashes, vibration etc., to one or more remote locations, e.g., in a wireless manner, by using smartphone application and GUI thereof, or in any combination thereof.

[20] Another object of the invention is to discloses a dosing mechanism comprising a dosing body, provided in connection or otherwise integrated with at least two mechanisms of the following three (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; (ii) a piston stroke detecting mechanism configured to both indicate pump functionality and, upon further processing of said piston strokes, calculate additive inflow parameters; and (Hi) an air release mechanism.

[21] Another object of the invention is to discloses a dosing mechanism comprising a dosing body, provided in connection or otherwise integrated with all of following mechanisms: (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; ( ii ) a piston stroke detecting mechanism configured to both indicate pump functionality

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SUBSTITUTE SHEET (RULE 26) and, upon further processing of said piston strokes, calculate additive inflow parameters; and (Hi) an air release mechanism.

[22] Another object of the invention is to discloses a method of dosing additive in a solvent, comprising steps of providing in connection or otherwise integrating at least two of the three following mechanisms: (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; (ii) a piston stroke detecting mechanism configured to both indicate pump functionality and, upon further processing of said piston strokes, calculate additive inflow parameters; and (Hi) an air release mechanism.

[23] Another object of the invention is to discloses a method of dosing additive in a solvent, comprising steps of providing in connection or otherwise integrating the three following mechanisms: (i) an engine ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused; (ii) a piston stroke detecting mechanism configured to both indicate pump functionality and, upon further processing of said piston strokes, calculate additive inflow parameters; and (iii) an air release mechanism.

[24] It is in the scope of the invention wherein the flow rate of solvent at the inlet of the metering pump is ranging from about 2.5 1/h to about 50 m ³ /h; and the flow rate in the nozzle ranging from about 0.01 1/h to about 7500 1/h. It is further in the scope of the invention wherein the dosing pump is configured for meeting a wide range of system specifications, such as GPM: about 0.19 to about 300 LPM; flow ratio: about 1:1 to about 1:30,000; pressure: about 4.3 to about 150 PSI; and Temperature range about -30 to about 150C. It is in the scope of the invention wherein the dosing pump and/or mechanisms, parts, and modules thereof are made of available materials, such as plastics, polymers and combinations thereof, metals, composite materials and mixtures of the same.

[25] It is further in the scope of the invention wherein the dosing pump disclosed herein is provided useful for dosing or proportionating in solvents (e.g., water) a wide range of additives. Additives are utilized, in a non-limiting manner for animal health such antibiotics coccidiostats wormers aspirin paracetamol and vaccines; food safety & sanitation; irrigation; metal processing; nutrient delivery system such as vitamins minerals trace elements, such as chlorine ammonia hydrogen peroxide acetic acid (vinegar) peracetic acid citric acid formic, propionic, lactic acids iodine essential oils; electrolytes probiotics; printing; vehicle wash; water treatment and dilution solutions; cleaning & disinfection, such as car & truck disinfection, staff decontamination etc.

BRIEF DESCRIPTION OF THE FIGURES

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SUBSTITUTE SHEET (RULE 26) [26] The accompanying drawings, which are included to provide a further understanding of the present disclosure and constitute a part of this specification, illustrate certain embodiments of the present disclosure and, together with the written description, serve to explain various aspects of the present disclosure, wherein:

[27] Fig. 1A schematically illustrates a perspective view of the upper portion of an all-in-one dosing pump assembly according to an embodiment of the invention;

[28] Fig. IB schematically illustrates a side view an all-in-one dosing pump assembly according to an embodiment of the invention;

[29] Fig. 1C schematically illustrates a lateral cross section an all-in-one dosing pump assembly according to an embodiment of the invention;

[30] Fig. 2 schematically illustrates a cross section of an air release mechanism at its open configuration according to an embodiment of the invention;

[31] Fig. 3 schematically illustrates a cross section of an air release mechanism at its closed configuration according to an embodiment of the invention;

[32] Fig. 4 schematically illustrates a cross section of an ON/OFF mechanism at its ON state, namely ‘pump is operating’, according to an embodiment of the invention;

[33] Fig. 5 schematically illustrates a cross section of an ON/OFF mechanism at its OFF state namely ‘pump is paused’, according to an embodiment of the invention

[34] Fig. 6 schematically illustrates a cross section of piston’s stroke detector at its ON mode, according to an embodiment of the invention;

[35] Fig. 7 schematically illustrates a cross section of piston’s stroke detector at its OFF mode, according to an embodiment of the invention;

[36] Fig. 8 schematically illustrates pump assembly according to an embodiment of the invention;

[37] Fig. 9 schematically illustrates pump assembly section, area and space used for all three integrated components, according to an embodiment of the invention;

[38] Fig. 10 schematically illustrates air release assembly according to an embodiment of the invention;

[39] Fig. 11 schematically illustrates air release assembly (closed position) according to an embodiment of the invention;

[40] Fig. 12 schematically illustrates air release assembly (Open position) according to an embodiment of the invention;

[41] Fig. 13 schematically illustrates ON/OFF button according to an embodiment of the invention;

[42] Fig. 14 schematically illustrates ON/OFF button, upper position (pump is operating), according to an embodiment of the invention;

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SUBSTITUTE SHEET (RULE 26) [43] Fig. 15 schematically illustrates ON/OFF button, bottom position (pump is paused) according to an embodiment of the invention;

[44] Fig. 16 schematically illustrates ON/OFF lever - upper position (pump is operating) according to an embodiment of the invention;

[45] Fig. 17 schematically illustrates ON/OFF lever section- upper position (pump is operating), according to an embodiment of the invention;

[46] Fig. 18 schematically illustrates ON/OFF lever section bottom position (pump is paused), according to an embodiment of the invention;

[47] Fig. 19 schematically illustrates ON/OFF lever section- bottom position (pump is paused), according to an embodiment of the invention;

[48] Fig. 20 schematically illustrates reed switch according to an embodiment of the invention; and

[49] Fig. 21 schematically illustrates reed switch section according to an embodiment of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[50] The present invention discloses an all-in-one dosing pump comprising first inlet for a solvent; second inlet for an additive, a reciprocating piston for suction of the additive and mixing the solvent with the additive and an outlet for the mixed solvent and additive. The dosing pump further comprising two or more or all three of the following mechanisms: an ON/OFF switching mechanism configured to allow solvent flow when additive inflow is paused or to allow both additive flow and solvent flow; a piston stroke detector configured to both indicate pump functionality and, upon further processing of said piston strokes, calculate additive inflow parameters; and an air release mechanism.

[51] The terms ‘all-in-one’ and ‘AIO’ interchangeably refer to the dosing pump presented in this invention, where three different mechanisms: ON/OFF engine mechanism, air release mechanism, and piston stroke sensing mechanism are integrated within one casing. It is in the scope of the invention wherein hereinafter disclosed AIOs are selected from one, a plurality, or a combination of two or more embodiments, e.g., such as so-called TF, TF5 and MixRite types of AIO disclosed below.

[52] The term ‘about’ refers to a value being from 25% less than the defined measure up to 25% more than the defined measure. Similarly, the term “substantially” refers to a value being nearly exact, for instance, accounting for manufacturing tolerances or a value which can be reasonably considered equal to the stated value.

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SUBSTITUTE SHEET (RULE 26) [53] As used in the specification and the appended claims, the singular forms “a,” “an” and “the” include their plural referents unless the context clearly dictates otherwise. For example, reference a “polymer,” a “member” or an “additive” is intended to include the processing or making of a plurality of polymers, members or additives. References to a composition containing or including “an” ingredient or “a” polymer is intended to include other ingredients or other polymers, respectively, in addition to the one named.

[54] The terms ‘solvent’ and “additive” refer to any matter being flowable at working temperature and pressure, e.g., at least one heterogenous or homogeneous fluid, at least one liquid, at least one gas, at least one solid matter, such as small particles and powders. Each of the terms further refers to a any type or form of blend, mixture or combination of a liquid, gas and solid. Alternatively, or alternatively, the term refers to a flowable compound that is liquid composition either or both at room temperature and (dosing-) process temperature. Alternatively, or alternatively, the term refers to a nonreactive component of a composition that reduces the viscosity of the composition and has a volatility such that it is removed under the conditions (such as temperature) at which the composition is processed.

[55] The term “liquid composition” refers to a liquid medium, i.e., pure liquid or a combination of two or more liquids, in which the material is homogenously or heterogeneously distributed. In certain embodiments, the material is dissolved in a liquid medium to form a solution. In certain embodiments, the material is dispersed in a liquid medium to form a dispersion. In certain embodiments, the material is suspended in a liquid medium to form a suspension or emulsion.

[56] The terms "fluid components" or "fluids", interchangeably refer to flowable substances, chemical, biological or physical compounds or even mixtures of the compounds. In preferred embodiments of the invention, fluids or fluid components are substances flowable when provided by their own or under the influence of a power, for example under the influence of pressure applied thereon. Even more particularly, the term "fluids" comprises liquids, i. e. substances having a relatively low viscosity at ordinary working temperature, for example room temperature or a controlled elevated temperature, but also comprises substances having a higher viscosity under ordinary working temperature, for example room temperature or a controlled elevated temperature, for example a paste. In accordance with the present invention, the term "fluids" may also comprise suspensions, i.e. substance mixtures having one solid and one liquid or paste-like component, or may also comprise solid fine particles, powders or powder mixtures.

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SUBSTITUTE SHEET (RULE 26) [57] The terms "dosing" and "dose", interchangeably refer to process of metering (proportioning) an amount, or the metered amount of substance or matter itself, in the very general sense. In a particularly those terms refer to an exact metering of a substance, or the exactly metered amount, or of a rapid metering of a substance, or the rapidly metered amount, or even the combined exact and rapid metering of a substance, or the combined exactly and rapidly metered amount.

[58] The dosing pump of the present invention is utilizable for dosing additives of various sorts, by means of a regulation of a volumetric type of the fluid pumped at each cycle. They are devices that are widely used in numerous both industrial and domestic applications, such as for example: treatment of drinking water; public and private water pools; vehicle wash facilities; laundries; galvanic equipment; chemical industry; cooling towers; fertirrigation; agro- alimentary industry; animal health such antibiotics coccidiostats wormers aspirin paracetamol and vaccines; food safety & sanitation; irrigation; metal processing; nutrient delivery system such as vitamins minerals trace elements, such as chlorine ammonia hydrogen peroxide acetic acid (vinegar) peracetic acid citric acid formic, propionic, lactic acids iodine essential oils, etc.; electrolytes probiotics; printing; water treatment and dilution solutions; cleaning & disinfection, such as car & truck, and/or staff decontamination.

[59] Examples of certain embodiments of the present disclosure will be described more fully below. The following examples and formulations of various exemplary binding materials and uses thereof may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth therein. Rather, these exemplary embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[60] Reference is now made to figures 1A-1C, illustrating a perspective view, side view and a crosssection of a portion of dosing pump according one embodiment of the invention. Bell-shaped casing of the pump comprising a body and a continuous enveloping cover. The body includes, inter alia, lower pump cylinder; side in and out flow connections; mounting connection; additive suction assembly connection. In Fig. 1A, cover (1100) includes, inter alia, an upper pump cylinder and top mounting for air release (201); and an on/off mechanism (100).

[61] Figs. 1B-1C depict an air release cover (1050) and a dosing pump upper cover (1100); dosing pump body (400), solvent inlet (402) and mixture (product) outlet 401; cylinder support (499), adjustment nut and proportioner (500), proportioner’s cylinder (502). Check valve nut (600),

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SUBSTITUTE SHEET (RULE 26) additive suction connection (601). Figs. 1B-1C further show mounting bracket (403), and check valve pin (602).

[62] Reference is now made to Figs. 2 and 3, schematically illustrating cross sections of the upper portion of a dosing pump according to an embodiment of the invention. Fig. 2 shows the air release in its open configuration (204), and Fig. 3 depicts its closed configuration. The valve enables fluids, especially compressible fluids such as air, to flow out from the top of the pump. The pump cover top (1100) may be the highest location in the solvent supply system, so air existing in the flow will accumulate there, and might cause pump malfunction.

[63] It is in the scope of the invention where the air release mechanism comprises an air release valve the is configured for rapid venting manually of a large amount of air at system start up, or when a fluid is filling the system. Additionally, or alternatively, the air release mechanism comprises degassing valve which is configured for periodically venting trace amounts of gas as it occurs. It is thus in the scope of the invention wherein the normally-open valve closes once fluid rises in the system; or alternatively, the valve automatically re-opens whenever additional pockets of gas rise in the valve, even when the system is pressurized. Once the gas is expelled, the presence of liquid closes the valve.

[64] In an embodiment of the invention, the air release mechanism comprises a normally-closed air release knob (201), O-ring (209), air release spring (202), air release screw (203), air release - side screw (206), and AIO air ring (205). The reed switch detector (131) is also shown.

[65] Reference is now made to Figs. 4 and 5, schematically illustrating cross sections of the ON/OFF switching mechanism configured to allow solvent flow when additive inflow is blocked, located at an upper portion of a dosing pump, according to an embodiment of the invention. Fig. 4 shows the ON/OFF handle positioned at its ON state, pump is operating; whereas Fig. 5 depicts the same in its OFF state, pump is paused.

[66] The pump ON/OFF switching mechanism comprises ON/OFF handle (101), lever, pedal, switch, button, or knob, affixed in connection with AIO cover (100), and operatable in one or more manners, including manually, electrically (computerized), pneumatically and hydraulically. A stainless- steel screw (102) is shown at Figs. 13-14 below. The mechanism further integrated with hand ON/OFF reed switch bar (104), TF ON/OFF pin (105). Fig. 4 shows that in its ON (open-) state, the lower portion of the hand on/off reed switch bar (104) is located above magnet assembly (302-306). By actuating (110) the handle (101), AIO bar (104) slide down (112). Fig. 5 hence shows that in its OFF (closed-) state, the lower portion of the AIO bar (104) is provided in connection with valve bridge (301). The arrow (312) indicates the direction of movement of the AIO bar (104) for transferring the pump to its OFF state.

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SUBSTITUTE SHEET (RULE 26) [67] It is in the scope of the invention wherein the ON/OFF mechanism enables the pump to stop injecting the additive, while the solvent keeps flowing thru the pump. The pump is paused by moving an AIO bar (104), preventing the engine's valves bridge (301) flip its position; Pump's engine (325) stops near the top stroke position. Manual version is described, nevertheless, the mechanism can be activated by hydraulic or electric actuator as well.

[68] The dosing pump of this invention further integrates a pump’s stroke detector. It is acknowledged that such a detector may be selected from a group consisting of electromagnets, including reed sensors, optical sensors, movement sensors including accelerometer, displacement sensor, capacitive sensor, inductive sensor, temperature sensor, proximity sensor, volumetric sensor, and a pressure sensor. In this embodiment, an electromagnet reed switch mechanism will be provided as an example. Hence, a magnet (306) attached to the vertical magnet holder (304) activates the reed detector (131) on each stroke. The detector is utilizable for two different tasks: firstly, for indicating engines proper operation; and secondly, for providing data processable to calculate additive suction parameters, e.g., flux, flow rate etc.

[69] Reference is now made to Figs. 6 and 7, schematically illustrating cross sections of a pump’s stroke detector (here, the reed switch assembly). In Fig. 6, reed switch is OFF, whilst it is shown switched ON in Fig. 7. The reed switches and magnets thereof are provided useful to detect when the reciprocating piston is at its extreme position at each stroke, in transition or both. A communicable controller calculates the rate at which the motor is running by counting the opening and closing of the reed switches activated by the varying positions of the pump's engine. The controller may compare that rate to a pre-programmed value to determine if the pump is operated properly.

[70] The reed switch assembly is located in AIO bar (104), and the pump body within its cover (1100). It comprises, inter alia, reed switch sensor cable (130), and reed switch sensor (131).

[71] Reference is now made to Figs. 8 and 9, schematically illustrating a perspective view and a cross section, respectively, of engine’s ON/OFF mechanism, namely modules including TF ON/OFF lever (101), TF5 ON/OFF cover (200), TF5 cover (300), TF5 ON/OFF bar (311), TF5 valve bridge (322), engine (325), TF5 body (410), solvent’s inlet and either solvent outlet (lever in its close configuration, or mixture (product-) outlet, lever is in its open configuration (401, 402, respectively), adjustment nut (500), and additive suction connection (601).

[72] Reference is now made to Figs. 10, 11 and 12, schematically illustrating a perspective view and two cross sections, respectively, of air (z.e., any comprisable fluid relevant to the dosing

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SUBSTITUTE SHEET (RULE 26) system) release mechanism, namely modules including air release spring (212), air release (1050), air release O-ring (1051), air release bar (1052), MixRite-cover (1100)

[73] It is also understood that the mention of one or more method steps does not preclude the presence of additional method steps before or after the combined recited steps or intervening method steps between those steps expressly identified. Moreover, the lettering of process steps or ingredients is a convenient means for identifying discrete activities or ingredients and the recited lettering can be arranged in any sequence, unless otherwise indicated.

[74] In one mode of action, as indicated by arrow 211A (downwards), shutting of the 1050 cover provides closing 211B the gap provided by O-ring 1051 so that air inflow 210 is stopped.

[75] Reference is now made to Figs. 13, 14 and 15, schematically illustrating a perspective view and two cross sections, respectively, of ON/OFF button assembly according to an embodiment of the invention; namely modules including a stainless- steel screw (102), MixRite ON/OFF knob (1010), ON/OFF bar (1011), MixRite ON/OFF spring (1012), NUT (1020), and MixRite- cover (1100). A possible mode of action is schematically illustrated in Figs. 14 and 15 illustrating ON/OFF button in its upper position (pump is operating); and ON/OFF button in its lower position (pump is paused), respectively. Activation of knob (1010), e.g., by rotation (120) and/or by linearly reciprocating bar (1011), pushes it downwards to pause piston stroke stopper downwards to stop engine’s work. In his OFF position, additive inflow is stopped, whilst solvent flow throughout the dosing pump is allowed.

[76] Reference is now made to Figs. 16, 17, 18 and 19, schematically illustrating perspective and cross section views of ON/OFF lever - upper position (Pump is operating), respectively; and perspective and cross section views of ON/OFF Lever section bottom position (Pump is paused while solvent flow is allowed), respectively, according to yet another embodiment of the invention. The ON/OFF lever assembly comprises, inter alia, models such as ON/OFF lever (101), TF ON/OFF pin (105), TF ON/OFF cover (200), TF5 cover (300), TF5 ON/OFF bar (311), and TF5 piston stroke stopper (320). A possible mode of action comprises steps of providing (110) lever (101) in its ON position, hence, reversibly affixing bar (311) in its most upper orientation (112), so that stopper (320) is at its upmost position. By sliding lever (101) to its OFF position, reversibly affixing bar (311) in its lower orientation (112), so that stopper (320) is at its downmost position, pausing piston strokes (additive inflow is stopped), while enabling solvent flow throughout the dosing pump.

[77] Reference is now made to Figs. 20 and 21, schematically illustrating perspective and cross section views of reed switch according to an embodiment of the invention. The reed switch

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SUBSTITUTE SHEET (RULE 26) assembly comprises, inter alia, modules including reed switch sensor cable (130), reed switch sensor (131), nut (1020), and TF5 cover (300). A possible mode of action comprises steps of sensing, by means of sensor (131), piston strokes, by means of either cable (130) or wirelessly indicating piston regular or irregular reciprocation, and/or sending data which further processed to calculate additive inflow parameters.

[78] Although the disclosure herein has been described with reference to particular embodiments and examples, it is to be understood that these embodiments and examples are merely illustrative of the principles and applications of the present disclosure. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and examples and that other arrangements may be devised without departing from the spirit and scope of the present disclosure as defined by the appended claims.

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SUBSTITUTE SHEET (RULE 26)