WO2018235084A1

WO2018235084A1 - Self-cleaning filter apparatus

Info

Publication number: WO2018235084A1
Application number: PCT/IL2018/050687
Authority: WO
Inventors: Moshe Granot; Yotam GRANOT
Original assignee: Inova Water Systems Y.G Ltd
Priority date: 2017-06-23
Filing date: 2018-06-21
Publication date: 2018-12-27

Abstract

An apparatus for facilitating cleaning and flushing of a self-cleaning screen filter apparatus featuring a screen filter the apparatus comprising a flush pipe that is passively and/or non-rigidly associated with a cleaning module, the cleaning module including a non-stationary housing, a stationary housing that are adjacent to one another and associated over a rotational to linear movement converter module that features a bidirectional threaded track such that the non-stationary housing is configured to be pivoted with and move relative to the stationary housing.

Description

SELF-CLEANING FILTER APPARATUS

FIELD OF THE INVENTION

The present invention relates to fluid filtering apparatuses, for applications such as water filtration, that utilizes screen filters, and in particular, to such a self- cleaning filter apparatus. -

BACKGROUND OF THE INVENTION

The present invention relates to a self-cleaning screen filter apparatus using back flush process for filtering a flowing fluid, in particular water. Self-cleaning screen filter systems are automated utilizing controllable valves, and motors to control the onset of the cleaning cycles.

Prior art self-cleaning filters include housings around filter elements that include cleaning elements mounted inside the housing to periodically remove debris and contaminants from the filter elements. Generally, dirty water or other fluid enters the assembly through a "dirty" inlet, passes into the central portion of the filter assembly, and then is filtered by passing radially outwardly through a cylindrical filter element. During use, the high pressure filtering area is "separated" from a lower pressure flushing portion of the assembly.

In these devices, when the filter becomes clogged or too dirty, a valve on the flush outlet is opened to "clean" or "vacuum" the filter, using a cleaning module including suction nozzles. The valve can be actuated, for example, when the system reaches a predetermined threshold pressure differential between the dirty inlet and the clean outlet. The threshold differential pressure is generally monitored by sensors, and that differential typically increases as filtered materials collect on the inside of the filter element.

In filter systems the vacuum cleaning is provided by relatively low pressure at the flush outlet that initiate its action when the flush valve is opened. That low pressure communicates through a fluid flow motor assembly connected to vacuum nozzles. The nozzle inlets are positioned along the filtering surface of the filter element. The relatively lower pressure at the flush outlet creates a pressure differential along the cleaning module that generates a vacuum that sucks the debris or buildup formed on the inside of the filter back through the vacuum nozzles and back to the motor assembly, and finally through the flushing/cleaning outlet.

The aforementioned fluid flow generates a thrust on the fluid flow motor assembly outlets that rotates the fluid flow motor, generally in the form of a rotating sprinkler or turbine, and the entire assembly connected to it. The rotating assembly includes the vacuum nozzles which (by rotating) pass over and "vacuum clean" at least some portion of the interior surface of the filter element .

Such self-cleaning filters are described in US Patent No. 4,060,483 to Barzuza, US Patent No. 6,959,818 and US Patent No. 8,028,841 to Olson.

However, such self-cleaning filter systems have a shortcoming relating to the handling of pressure differential that is built up between the high pressure filtering chamber and the low pressure flushing chamber. The pressure differential exposes the length of the cleaning module to a longitudinal pressure differential. The longitudinal pressure differential affects the quality of the filtering process and exerts unnecessary forces on the filter assembly components.

US Patent No. 4,060,483 to Barzuza, provides a filter assembly that does not attempts to or provides means to balance the differential pressure established along the length of the cleaning module. Accordingly, the lack of pressure handling leads to an inefficient system that is not balanced, and which is inefficient over time as parts start to erode under the continued effects of the longitudinal differential pressure.

US Patent Nos. 6,959,818 and 8,028,841 both to Olson attempt to overcome this problem by establishing pressure equalization between the filter's high pressure chamber and low pressure chamber by introducing a pressure line between the different chambers so as to ensure pressure equalization by mobilizing pressure.

SUMMARY OF THE INVENTION

The present invention overcomes the deficiencies of the background art by providing a self-cleaning screen filter apparatus that does not require pressure equalization means between the high pressure filter chamber and the low pressure flush chamber and/or any other pressure differential areas of the filter.

The prior art discussed above attempt to solve the differential pressure problem established between the filter (high pressure) chamber and the flush (low pressure) chamber that is exerted along the length of the cleaning module that spans along the length of both the chambers, by introducing a threaded stem to offset the pressure imbalance. However the threaded stem has proven to be incapable of offsetting the longitudinal pressure differential. This lead to some of the prior art to introduce means for mobilizing pressure to overcome the longitudinal pressure differential so as to establish a balanced cleaning module. However the need for an intrinsically balanced cleaning module apparatus remains outstanding.

Embodiments of the present invention overcome the problem of

longitudinal differential pressure that is exerted along the cleaning module by introducing a non- stationary cleaning module housing capable of withstanding the longitudinal differential pressure.

Embodiments of the present invention further provides a cleaning module incorporating the non-stationary cleaning module housing configured for withstanding the longitudinal differential pressure therein acting to eliminate the pressure differential.

The present invention solves the longitudinal pressure differential that is established along the length of a cleaning module between the filter chamber (high pressure) and the flush chamber (low pressure) of a filter body. This is

accomplished by isolating the cleaning module into a high pressure portion including the non- stationary cleaning module housing and suction nozzles and a low pressure portion including a flush pipe. Such a configuration eliminates the longitudinal pressure differential by eliminating the portions exposed to any pressure differential. This is achieved by separating the longitudinal mechanical connection between the flush chamber parts and filter chamber parts therein eliminating the transfer of pressure and force between the parts.

Embodiments of the present invention provide a non- stationary housing for a cleaning module of filter assembly. The non- stationary housing having a hollow cylindrical body including an upper end, and a lower end defining therebetween an internal open lumen for receiving debris flow; an external surface having an first portion featuring at least one opening and a second portion featuring a bidirectional threaded track.

In embodiments the upper end and lower end are capped with a capping member. In embodiments the non- stationary housing further comprising at least one suction nozzle configured to securely fit over the at least one opening of the first portion.

For ease of demonstration embodiments will be described with respect to screen filter that utilizes an inside out filter flow therein the filtering surface is disposed along an internal surface of a filter. However, embodiments of the present invention are not limited to an inside-out filtering direction alone; therefore embodiments of the present invention may similarly be configured and/or adjusted to provide for an outside-in filtering direction across the screen filter.

Within the context of this application the term flowing fluid may

interchangeably refers to any liquid, gas, air, or a mixture thereof. While for eases of understanding the present invention is primarily described with respect to liquid in the form of water, however, the presently invention may be utilized to filter any form of a flowing fluid and therefore is not limited to use as a water filter system.

Within the context of this application the term non-rigid and/or passive coupling refers to parts that are associated with one another in a non-fixed and/or mechanical manner such that the coupled member may move relative to one another.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The materials, methods, and examples provided herein are illustrative only and not intended to be limiting.

Implementation of the method and system of the present invention involves performing or completing certain selected tasks or steps manually, automatically, or a combination thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is herein described, by way of example only, with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of the preferred embodiments of the present invention only, and are presented in order to provide what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show structural details of the invention in more detail than is necessary for a fundamental understanding of the invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice.

In the drawings:

FIG. 1A-D are various views of a schematic illustrative diagram of the self- cleaning filter apparatus according to embodiments of the present invention, that is driven by a fluid flow motor;

FIG. IE is a schematic illustrative diagram of the self-cleaning filter apparatus according to embodiments of the present invention, that is driven by an external auxiliary motor;

FIG. 2A-E are various views showing a schematic illustrative diagrams of the cleaning module of the a filter apparatus according to embodiments of the present invention;

FIG. 3A-B are exploded views of the cleaning module according to embodiments of the present invention;

FIG. 4A-B are close up view of the movement control members of the cleaning module of the filter apparatus according to embodiments of the present invention; and

FIG. 5 is a schematic illustrative diagram of an embodiment the self- cleaning filter apparatus according to embodiments of the present invention;

FIG. 6A-B are schematic illustrative diagrams showing a partial view of an embodiment using a split flush pipe assembly with the self-cleaning filter apparatus according to an embodiment of the present invention; and

FIG. 7A-E are schematic illustrative diagrams showing views of an embodiment using a split flush pipe assembly and fluid flow motor module with the self-cleaning filter apparatus according to an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The principles and operation of the present invention may be better understood with reference to the drawings and the accompanying description. The following figure reference labels are used throughout the description to refer to similarly functioning components are used throughout the specification

hereinbelow. 10 raw unfiltered fluid (granulated arrow);

12 filtered fluid (white arrow)

14 filtered debris (black arrow);

100 filter apparatus;

101 filtering chamber/portion;

102 external housing;

103 debris flushing chamber/portion;

104 lower plate;

105 imaginary chamber division line;

106 upper plate;

108 dividing plate;

109 support rod;

112 un-filtered fluid inlet;

114 filtered fluid outlet;

116 flush flow outlet;

120 filtering member;

122 filtering member lower cap/ support;

124 filter upper cap;

130 aux motor connector;

131 support member;

132 auxiliary/external motor;

140 fluid flow motor module;

150 cleaning module;

151 axis;

152 distal/lower sealing plate;

154 stationary housing;

155 non-stationary housing;

155a upper (first) portion;

155b rail (second) portion;

155n suction nozzle;

155o nozzle opening (second end);

155L non-stationary housing lumen;

156 sealing cap (proximal/upper); 156r railing recess;

158 flush pipe;

158a flush pipe distal portion;

158b flush pipe proximal portion;

158c closed proximal end;

158d open distal end;

158r flush pipe side rail;

158L flush pipe lumen;

160 a rotational to linear movement converter module;

162 bidirectional threading/guiderail/track

164 guiderail holding pin;

165 guide member;

200 motion transmission assembly;

202 central rotating axis;

204 gear cog wheel;

206 gear works assembly;

208 cog wheel;

210 transmitter;

212 flush chamber rotating axis;

258 split flush pipe assembly;

258a split flush pipe distal portion;

258b split flush pipe proximal portion;

258r distal portion guide railing;

258s virtual seal;

A self-cleaning screen filter apparatus provides for filtering upstream raw "unfiltered" water that is introduced into a filter housing through an inlet to flow across a screen filter so as to filter debris out of the upstream water flow to produce clean "filtered" water that flow out to downstream through a clean water outlet. Such self-cleaning filter apparatuses provide for cleaning the filter and removing the debris using a cleaning apparatus internal to the filter that removes debris lodged and/or accumulated on the screen filter, and thereafter flushes the debris out of the filter apparatus through a dedicated flush outlet. The filter apparatus accordingly has a filtering phase where water is cleaned by removing debris from the water flow across the screen filter, and a cleaning phase, where the filter is cleaned to remove accumulated debris. The filter apparatus alternates between the filtering phase and cleaning phase as needed based on how dirty the filter member, that is reflected in the differential pressure established across the screen filter member and consequently the filter's inlet and outlet.

The filtering phase continues until such as time as the differential pressure across the screen filter reaches a differential pressure threshold pressure at which time the cleaning phase is initiated, by opening the valved flush outlet. Generally the differential pressure threshold is controllable. Preferably the differential pressure threshold is between but not limited to 0.3 bar and 0.7 bar.

During the cleaning phase the fluid flow across the filtering member is reversed so as to allow debris to dislodge from the screen filter member and to be removed by way of suctioning and/or vacuuming the filter apparatus by the cleaning module.

The cleaning module is configured to move along the surface of the filter both circumferentially (around) and linearly (up and down) the filter surface. The rotational movement of the cleaning module is provided so as to scan the perimeter of the filter surface. The linear movement of the cleaning module is provided to scan the length of the filter surface. Accordingly both movements provide for scanning the full surface of the screen filter member.

Initiation of the cleaning module is caused when the threshold differential pressure is crossed causing the flush valve to open, exposing the filter apparatus to atmospheric pressure. This in turn reverses the flow across the filter member allowing the flow to enter the suction nozzles initiating suctioning of the filter surface with the cleaning module.

The movements of the cleaning module may be driven by an internal water motor, for example a rotating sprinkler apparatus, or by an external driving motor. Both of these driving means provide to move the cleaning module both linearly and circumferentially so as to allow the scanning and cleaning of the entire filter surface, as described above.

Now collectively referring to FIG. 1-5 that show various views of embodiments of the present invention. FIG. 1A shows an assembled view of self-cleaning filter apparatus 100, while FIG. IB shows a cross-sectional view of apparatus 100 revealing the internal components thereof. FIG. 1C-E show optional exploded view to better view the components of filter apparatus 100.

Filter apparatus 100 including a housing 102. Housing 102 features a filtering chamber 101 and a flushing chamber 103 that are formed by dividing the internal volume of housing 102 with a dividing plate 108, that is disposed along an imaginary chamber division line 105.

Filter apparatus 100 including an inlet 112 for receiving unfiltered "raw" water 10 (granulated arrow), a clean outlet 114 for conveying clean filtered water 12 (white arrow), a flush outlet 116 for conveying filtered debris 14 (black arrow). Inlet 112 and outlet 114 are disposed on the filtering chamber 101 of housing 102. Flush outlet 116 is disposed on flushing chamber 103 of housing 102.

Flush outlet 116 is a valved flush outlet fit with a valve (not shown) to control the open/closed status outlet 116. When outlet 116 is closed filter apparatus

100 is in filtering phase. When outlet 116 is open filter apparatus 100 is in cleaning phase.

In some embodiments inlet 112 and/or outlet 114 may be fit with a valve to control the open/close status of inlet 112 and outlet 114 respectively.

Housing 102 may feature a plurality of supporting rods 109 provided for structural support.

Housing 102 is shown as separate housing forming the external surface of filter as apparatus 100, wherein housing 102 is coupled with a lower plate 104, an upper plate 106 to defining the internal volume of housing 102 and filter apparatus 100, as shown. Therein filter assembly 100 is provided from as a multi-piece housing that facilitates maintenance of housing 102 and filter apparatus 100.

In some embodiments the body of filter apparatus 100 may be provided from a unitary member, and/or any number of members. For example, housing 102 may be integrated with at least one of lower plate 104 and/or upper plate 106, and/or dividing plate 108 that may be integrated with housing 102.

The internal volume of filter apparatus 100 is divided into filtering chamber

101 and flushing chamber 103 with at least one dividing plate 108 provided along an imaginary division line 105. Filtering chamber 101 comprises filtering member 120 and at least a portion of a filter cleaning module 150. Filter chamber 101 provides the chamber where upstream "raw" fluid 10 shown by granulated arrow is filtered to form filtered fluid 12 shown by white arrow. Filer member may be covered along its upper end with a cap 124 and along its lower end with a support member 122. Preferably support member 122 allows fluid flow therethrough and is adjacent to inlet 112, as shown. Preferably, upper cap 124 provides a seal and/or cap for closing the upper portion of filter 120 to facilitate the working of the cleaning module 150 during the cleaning phase. In embodiments a brush seal may be disposed below support member 122 and/or upper cap 124.

Flushing chamber 103 comprises the at least a portion of filter cleaning module 150 that is coupled with and driven with a cleaning module driving means selected from an internal fluid flow motor 140 (FIG. 1C-D), for example a rotating sprinkler apparatus, and/or an external driving motor 132 (FIG. IE).

In some embodiments featuring an internal fluid flow motor 140, flow motor 140 is coupled over flush pipe 158 over flush opening 158o, for example as shown in FIG. 1B-D. Therein the rotation of flow motor 140, for example in the form of a sprinkler, is transmitted to flush pipe 158 by way of rigid coupling within flush chamber 103.

In some embodiments, for example as shown in FIG. IE, filter apparatus

100 may feature an external and/or auxiliary motor 132, at least a portion of filter cleaning module 150, more preferably an upper portion of cleaning module 150, is directly associated with an auxiliary motor connector 130 to facilitate secure coupling with external driving means 132. For example auxiliary motor connector 130 may be provided in the form for example including but not limited to gear, bearings, ball bearings, cam, shaft, pulley, belt the like or any combination thereof provided to facilitate transfer of motion from the external motor 132 to motion of at least a portion of cleaning module 150, more preferably an upper portion thereof.

In some embodiments auxiliary motor connector 130 may be supported with a support member 131 as shown. Support member 131 is secured to at least a portion of filter housing 100 and more preferably upper plate 106, for example as shown in FIG. IB. Optionally support member 131 may be provided from optional materials for example including but not limited to plastics, metals, alloys, polymers the like or any combination thereof. FILTERING PHASE

During the filtering phase a raw unfiltered flowing fluid 10, for example including but not limited to water, flows into filtering housing 102 via inlet 112 and across a filter member 120, disposed internal to filtering housing 102 within filtering chamber 101. The flow of fluid 10 across filter 120, shown in the form of a screen filter, therein forms filtered fluid 12 that flows out of filtering chamber 101 through outlet 114. The debris 14 filtered by filter 120 and extracted from raw fluid 10, is trapped and/or accumulated along filtering member 120surface.

The filtering phase continues filter 120 is gradually becomes blocked causing a differential pressure build up across the filter 120. The filtering continues until such as time as the differential pressure across the filter 120 reaches a preset differential pressure threshold pressure, preferably but not limited between 0.3 bar and 0.7 bar.

Filtering apparatus 100 depicts a filtering fluid flow that is inside-out wherein raw water enters the internal volume of filter 120 and flows across it from the inside-out, therein cleaning module 150 is disposed and functions internal to filter 120 to clean the internal surface of filter 120. Embodiments of the present invention are not limited to such an inside-out filtering direction of flow, instead the direction of flow may be provided in an outside-in flow direction, wherein cleaning module 150 would be configured so as to clean the external surface of filter 120, and therefore place accordingly along external to filter 120.

CLEANING PHASE

During cleaning phase, also referred to as the flushing phase, valved flush outlet 116 is opened causing fluid flow reversal across filter 120. The accumulated debris 14 is evacuated and/or flushed from filter 120 and transported to flushing chamber 103 with the aid of cleaning module 150 that is disposed internal to filter member 120. Debris 14 is removed from flushing chamber 103 via the open flush outlet 116. The direction of fluid flow during cleaning phase is reversed from that utilized during filtering phase described above. The direction of flow during the filtering phase, of apparatus 100 as shown, is therefore outside-in. The flow reversal allows debris to leave filter 120 and to enter cleaning module 150 through its suction nozzles 155n and eventually flow toward flushing chamber 103 and out via flush outlet 116.

During the cleaning phase filtered water is continuously supplied through outlet 114, the outlet is kept open during the cleaning phase allowing it to continuously supply cleaning filtered water.

Now referring to FIG. 2A-E showing various close-up views of cleaning module 150 according to embodiments of the present invention. FIG. 3A-B show exploded views of cleaning module 150.

FIG. 2A-B show the assembled cleaning module 150 as would be found within filter apparatus 100 and disposed internal to filter 120. FIG. 2A shows cleaning module 150 that is extended to the upper end filter chamber 101, adjacent to dividing plate 108 and filter cap 124, therein cleaning module 150 is shown where it would be found while cleaning an upper portion of filter 120.

FIG. 2B shows cleaning module 150 that is extended to the lower end filter chamber 101, therein cleaning module 150 is shown where it would be found while cleaning along a lower portion of filter 120.

As can be seen cleaning module 150 extends along the length of filter chamber 101 and into flushing chamber 103 through dividing plate 108 and filter cap 124. Dividing plate 108 and filter cap 124 provide for dividing and sealing flushing chamber 103 from filter chamber 101, and sitting on the upper portion of filter member 120, as shown in FIG. 2B-C. In some embodiments, plate 108 and cap 124 may be provided as a single member capable of covering filter member 120 and dividing housing 102 into flushing chamber and filter chamber.

FIG. 2C-E show the assembled cleaning module 150 with dividing plate

108 and cap 124 removed. FIG. 2C shows the assembled view while FIG. 2D-E show the corresponding cross sectional view. FIG. 2D schematically shows cleaning module 150 upper position within filter chamber 101 during its linear movement. FIG. 2E schematically shows cleaning module 150 at a lower position within filter chamber 101 during its linear movement.

FIG. 3A-B show exploded views of cleaning assembly 150, FIG. 3 A showing the face on view, FIG. 3B showing the perspective view.

In embodiments cleaning module 150 comprises a stationary housing 154, a non-stationary housing 155 and a flush pipe 158 that are configured to be concentric with one another. The cleaning module 150 is disposed within filter apparatus 100 between the low pressure flushing chamber 103 and the high pressure filtering chamber 101. However cleaning module 150 according to embodiments is configured so as to eliminate the longitudinal differential pressure exerted along the length of cleaning module 150 as experienced with prior art cleaning modules.

The elimination of the longitudinal differential pressure and forces acting along the length of cleaning module 150 that causes prior art cleaning modules to be inefficient. This is achieved by separating the parts that span both the low pressure flush chamber 103 and high pressure filter chamber 101. Furthermore, separation of rotational forces and longitudinal forces are provided by the passive association between flush pipe 158 and stationary housing 155.

Accordingly embodiments of the present invention provide cleaning module 150 wherein only the flush pipe 158 span a portion of the filter chamber 101 and a portion of the flush chamber 103 wherein the remaining portions of the cleaning module 150 are in fluid communication with flush pipe 158, however they are not rigidly coupled to and/or fixed to flush pipe 158. Specifically flush pipe 158 is passively associated with stationary housing 155, via cap 156. The non-rigid coupling of flush pipe 158 with stationary housing 155 allows to transfer rotational motion while simultaneously eliminating the coupling of longitudinal pressure and force. Therein the flush pipe 158 and non-stationary housing 155 provide for separating the rotational motion and forces acting in the horizontal plane from the pressure differential and forces in the vertical (axial) plane acting along the length of flush pipe 158 but are not transferred and/or conveyed to the non-stationary housing 155.

Flush pipe 158 and in particular rail 158r transfers the rotational movement of flush pipe 158 rotational motion (transfer of horizontal plane forces) to cap 156 via a corresponding rail recess 156r to non- stationary housing 155 while allowing simultaneously eliminating the transfer of axial forces, by allowing housing 155 to move freely and/or float along the longitudinal axis of railing 158r. Therefore the cleaning module of embodiments of the present invention are not exposed to a pressure and forces differential that spans between the two chambers 101,103. Specifically the stationary housing 154 and the non-stationary housing 155, that form the core of the cleaning module 150, are independent of longitudinal pressure differential as they are wholly placed within the filter chamber 101 and are non- rigidly associated with and/or independent of flush pipe 158 and the flush chamber 103 therein they are not exposed to a longitudinal pressure and force differential. MOVEMENT OF CLEANING MODULE

As previously described, cleaning module 150 is activated during the cleaning phase with the opening of valved flush outlet 116. Cleaning module 150 provides for cleaning filter 120 by scanning the surface filter 120 with suction nozzles 155n to remove debris 14 clogging filter 120. Cleaning module 150 is activated when valved flush outlet 116 is opened to atmospheric pressure, causing the flow across filter 120 to reverse, as is known in the art. Cleaning module scan the surface of filter 120 establishing both rotational movement, to cover the circumferential surface of filter 120, and linear movement, to cover the length (height) of filter 120, therein ensuring that the full surface of filter 120 is scanned to remove debris therefrom. Accordingly both rotational movement and linear movement is required of at least portions of cleaning module 150.

Rotational movement is imparted to cleaning module 150 from and originates from fluid flow motor 140 and/or auxiliary/externals motor 132.

Specifically, rotational movement originates from at least one or more driver in the form of fluid flow motor 140 and/or motor 132 to impart rotational motion to upper/proximal portion of flush pipe 158b of flush pipe 158 with which it is coupled within flush chamber 103, and causing flush pipe 158 to rotate.

The rotational movement of flush pipe 158 is thereafter conveyed and/or transferred to non-stationary housing 155 causing it to rotate. As discussed above, the transfer of rotational movement from flush pipe 158 to non-stationary housing 155 is provided via sealing cap 156 using flush pipe side rail 158r and corresponding recess 156r, as best shown in FIG. 4A.

Next the rotational movement of non- stationary housing 155 is at least partially translated and/or converted to linear motion, with a rotational to linear movement converter module 160 disposed along at least one surface of housing 155 and more preferably between stationary housing 154 and non- stationary housing 155.. Therein non-stationary housing 155 is provided with both rotational movement, from flush pipe 158, and linear movement, from linear converter module 160. STRUCTURE OF CLEANING MODULE

Cleaning module 150 features a stationary outer housing 154, generally having a hollow cylindrical shape. Outer housing 154 is stationary and may be affixed to lower plate 104, as shown in FIG. 1-4, or to r filter upper cap 124, as shown in FIG. 5.

Housing 154 provides an anchor that facilitates the linear movement of non- stationary housing 155, as will be described in greater detail.

In embodiments, housing 154 features at least one and more preferably two or more fluid flow openings 154a so as to allow fluid to readily flow there through. Opening 154a may further provide for eliminating pressure buildup during the linear movement of non- stationary housingl55 to lower end of housing 154.

Opening 154a preferably further provide for limiting any debris buildup within the lumen of housing 154 by providing for continuous fluid flow across stationary housing 154. In some embodiments opening 154a may be fit with a mesh to ensure that large particles do not enter stationary housing 154.

Axis 151 provides a lower axis for non-stationary housing 155. Axis 155 is coupled to non-stationary housing 155 with sealing cap 152. Preferably axis 151 is disposed concentrically within housing 155 and therefore acts as an axis facilitating the movement of inner housing 155 to move along the length of housing 154. More preferably axis 151 is concentric with both inner housing 155 and outer housing 154.

Most preferably the surface area of axis 151 is configured to be equal to the surface area of the flush pipe 158, and in particular the surface area of distal portion 158a of flush pipe 158, configured as such so as to balance the pressure and forces acting on either ends of non-stationary housing 155, therein eliminating the pressure differential acting along the length and ends of housing 155..

In some embodiments, axis 151 and cap 152 may be configured to match flush pipe distal portion 158a and cap 156.

In some embodiments, axis 151 may be configured to be stationary wherein it is anchored and/or pivoted to a portion of filter chamber 101 for example including lower plate 104, dividing plate 108, filter upper cap 124, filter lower cap 122 or any combination thereof.

In some embodiments, axis 151 may be configured to rotate about its axis, without linear movement. In a preferred embodiment, non- stationary housing 155 is fit concentrically within, internal to, stationary housing 154. Housing 155 is configured to move linearly along the height of housing 154.

Housing 155 is a hollow cylindrical body that is sealed at a lower end with plate 152 and along upper end with cap 156. At least a portion of the external surface of inner housing 155 features bidirectional threaded railing 162. Bidirectional threaded railing 162 is provided to translate and/or convert the rotational motion housing 155, as provided by flow motor 140 and/or auxiliary external motor 132, to linear motion.

Most preferably a holding pin 164 and guide member 165, FIG. 4B, are associated over bidirectional threaded track 162 providing the conversion of rotational motion to linear motion. Pin 164 and guide member 165 associates with bidirectional threading 162 therein acting as a guide and limiting and/or controlling the linear movement of housing 155 relative to housing 154. Guide member 165 is preferably configured to associated over bidirectional threaded track 162 such that guide member 165 is associated over about half of the external surface of housing 155. The size of guide member 165 is configured as such so as to provide housing 155 with additional stability to allow it to withstand any pressure fluctuations and to absorb any force and pressure differential, to prevent erosion and material fatigue of bidirectional track 162 and/or guiding member 165.

While the figures show stationary housing 154 and non- stationary housing 155 are shown to be arranged in a concentric manner wherein housing 154 external to housing 155, however embodiments of the present invention are not limited to such an arrangement. In embodiments, housing 154 may similarly be configured so as to be internal to housing 155.

In embodiments cleaning module 150 comprises a stationary housing 154, a non-stationary housing 155 and a flush pipe 158 that are configured to be concentric with one another and internal to filter 120.

Stationary housing 154 and non-stationary housing 155 are adjacent to one another and associated over a rotational to linear movement converter module 160. Movement converter module 160 is utilized to at least partially transfer the rotational movement imparted to non-stationary housing 155 to further provide housing 155 with linear movement. Accordingly, non-stationary housing 155 is configured to move relative to stationary housing 154; and wherein the relative movement includes both rotational movement and linear movement. Movement converter module 160 spans both stationary housing 154 and non-stationary housing 155, and may be provided in optional configurations for example including but not limited to corresponding threading, male/female threading, guiderail and pin, track and guide pin, electromagnetic interaction, gear work, rack and pinion, the like or any combination thereof.

The non- stationary housing 155, is shown in a cylindrical format, while preferable, however embodiments are not limited to such a cylindrical configuration and may take any geometric shape.

Non- stationary housing 155 features two capped ends each capped with and individual sealing caps 152, 156 defining an enclosed internal lumen (155L) formed between cap 152, 156.

Cap 152, FIG. 3A-B, provides for sealing the lower end of housing 155 and for further associating housing with an axis 151. Preferably cap 152 is fit with axis 151 such that cap 152 is allowed to travel along the length of axis 151 as housing

155 moves linearly, therein axis 151 provides a lower axis for the linear movement of housing 155.

Cap 156, FIG. 3A-B and FIG. 4A, provides for sealing the upper end of housing 155 and for associating with a lower portion of flush pipe 158a. Therein cap 156 provides for introducing a distal end 158a of flush pipe 158 into lumen 155L. Optionally and preferably cap 156 further provides for transferring the rotational motion of flush pipe 158 onto housing 155, as previously described. The external surface of housing 155 preferably comprises a first (upper) portion 155a and a second (lower) portion 155b that are continuous with one another, as best seen in FIG. 3-4.

Second portion 155b is the portion of non-stationary housing 155 that is configured to be concentric with stationary housing 154 along this portion of housing 155, wherein housing 154 and housing 155 are associated with one another over movement converter 160. Accordingly second portion 155b comprises its portion of movement converter 160, shown here in the form of a bi-directional threaded track 162 into which a rotational to linear movement converter module 160is associated. The association allows guide railing 162, disposed on external surface of non- stationary housing 155, to travel relative to stationary guide member 165 and holding pin 164, disposed on and affixed to stationary housing 154. Therein guide railing 162, guide member 165 and holding pin 164 concertedly provide for translating at least a portion of the rotational movement of housing 155 to the linear movement of housing 155, up or down in a bidirectional manner. Bidirectional threaded track 162 is configured so as to allow both the up and down movement, such that when guide member 165 reaches one end the movement is reversed from up to down or from down to up.

First portion 155a comprises at least one or more suction nozzle opening 155o that lead in to lumen 155L. Preferably suction nozzles 155n are fit and securely associated over opening 155o. Opening 155o provides a passageway to allow fluid flow communication between suction nozzle 155n and internal lumen 155L. Most preferably this fluid communication allows debris flow 14 to flow from nozzle 155n through opening 155o and into lumen 155L of non-stationary housing 155 before it is removed via flush pipe 158, as will be described below. Suction nozzle 155n have a flow path between a nozzle first end and a nozzle second end; wherein the first end is associated over a filtering surface of a screen filter 120 and configured for suctioning debris away from the screen filter 120, and wherein the nozzle second end is fit over opening 155o so as to place nozzle 155n in fluid flow communication with the internal lumen 155L such that debris flow 14 flows through the nozzle toward opening 155o and therefrom into lumen 155L and allowed to flow into the flush pipe lumen 158L from the open distal end 158d of the flush pipe 158 and eventually out through opening 158o at the proximal end of flush pipe 158.

As described above, flush pipe 158 is associated with non- stationary housing 155 via cap 156, and configured such that at least a portion of flush pipe 158 is concentric with and disposed internal lumen 155L of non- stationary housing 155. Most preferably cap 156 provides for passive and/or non-rigid coupling between housing 155 and flush pipe 158 in a manner that is sufficient to allow concerted rotational movement. Flush pipe 158 comprises a distal (lower) portion 158a and a proximal (upper) portion 158b that are continuous with one another. Distal portion 158a is disposed internal to and concentric with lumen 155L. Distal portion 158a comprises an open distal end 158d forming a flush flow inlet for receiving debris flow (14) from lumen 155L and into flush pipe lumen 158L (FIG. 2B). The external surface of distal portion 158a features a guide railing 158r provided for transferring rotational motion to 155 through 156/156r and facilitating the linear movement of non- stationary housing 155 along the guide rail 158r. The proximal end of distal portion 158a is provided for associating with the sealing member 156 for sealing/capping and the upper end (proximal) end of said non- stationary housing 155, as previously described.

The proximal portion 158b of flush pipe 158 is disposed wholly within flush chamber 103 and features at least one or more opening 158o providing an flush pipe outlet for ejecting debris flow 14 out of said flush pipe 158. Flush pipe proximal portion 158b preferably features a closed proximal end 158c. In embodiments proximal end 158c may be fit with and/or associated with auxiliary motor connector assembly 130 to facilitate connection to an external motor 132, as previously described, FIG. IE. In embodiments distal end 158c and opening 158o may be fit with a fluid flow motor 140 as previously described, FIG. ID.

FIG. 4 A shows a close up perspective view of the configuration of the flush pipe 158 and seal 156 that cooperate to provide rotational motion while eliminating the longitudinal pressure differential and force acting on the cleaning module, as previously described. Seal 156 allows for sealing and end of housing 155, transferring the rotational motion of flush pipe 158 to rotation of housing 155 via cap recess 156r, and for linearly de-coupling housing 155 from flush pipe 158 so as to allow housing 155 to float up and down pipe rail 158r.

FIG. 4B shows a close up perspective view of the configuration of the non- stationary housing 155 and converter module 160 including bidirectional threaded track 162, guide member 165 and holding pin 164 that cooperate to provide linear movement while eliminating the longitudinal pressure differential and force acting on the cleaning module 150. Housing 155 features bidirectional threading 162 along its external surface configured so as to allow linear movement in both directions when cooperating with stationary guide member 165 and pin 164. In embodiments the external diameter of housing 155 and depth of track 162 are configured so as to provide stable axial linear movement capable of withstanding any pressure fluctuations and to absorb any force and pressure differential, to prevent erosion and or material fatigue of bidirectional threaded track 162 and/or guiding member 165. FIG. 5 shows an optional embodiment where stationary housing 154 is affixed to upper sealing plate 108, therefore this embodiment provides the mirror image embodiment of cleaning module 150 from that showing in FIG. 2-4.

Now collectively referring to FIG. 6A-B and FIG. 7A-E that show an embodiment of the present invention wherein flush pipe 158 is provided with a split configuration annotated 258 however providing the same flushing function as flush pipe 158 as previously described; wherein distal portion 158a and proximal portion 158b are divided into individual portions now annotated distal portion 258a and proximal portion 258b.

Such a split flush pipe configuration 258 provides for eliminating the longitudinal forces as there are no mechanical connections between parts that span both the flush chamber 103 and filter chamber 101. Therein the split flush pipe 258 configuration as shown provides for eliminating the longitudinal forces as there is a physical disconnect between flush chamber 103 and filter chamber 101.

Flush pipe 258 is therefore provided in two segments, best seen in the partial exploded view of FIG. 7B, a proximal portion 258b disposed within the flush chamber 103 and distal portion 258a disposed within filter chamber 101, the flush pipe is split over a virtual seal 258s that is disposed internal to dividing plate 108. Therein diving plate 108 facilitates assembly of flush pipe 258 proximal portions 258b and distal portion 258a.

Proximal portion 258b is configured to be coupled to and directly associated with a fluid flow motor 140 such that their rotation is coupled. The rotational motion is provided once debris fluid flow is initiated through their lumen with the opening of valved flush out 116 (not shown here) as previously described and shown. Accordingly as flush flow motor 140 rotates pipe proximal portion 258b rotates simultaneously.

Flush pipe proximal portion 258b is associated with flush chamber rotating axis 212 that extends out of flush chamber 103 through upper plate 106 and into a rotational motion transmitter assembly 200, best shown in FIG. 7A and FIG. 7C-E, specifically to cog wheel 208. Accordingly, rotational motion transmission assembly 200 provides for transmitting the rotational motion of proximal flush pipe 258b in the flush chamber 103 to distal portion flush pipe 258a within filter chamber 101 without transferring any of the longitudinal force and/or pressure differential to non- stationary housing 155. In some embodiments portions of motion transmitter assembly 200 may be supported with support member 131. For example, support member 131 may provide support for at least one of central axis 202 and/or flush chamber rotating axis 212. Preferably support member 131 provides for absorbing and/or counterbalancing at least some of the axial forces generated by proximal flush pipe 258b and transmitted via flush chamber axis 212. Accordingly support member 131 acts as a stabilizing member capable of counterbalancing any pressure differential exhibited across proximal flush pipe 258b and therein preventing any axial displacement of flush chamber axis 211 and/or proximal flush pipe 258b.

Assembly 200, FIG. 7C-E, therefore comprises flush chamber rotating axis

212, cog wheel 208, gear 204 and central axis 202. Preferably assembly 200 initiates rotational movement by the movement of flush chamber rotating axis 212. Flush chamber rotating axis 212 is rotated by virtue of its functional coupling with proximal flush pipe 258b. The rotation of proximal flush pipe 258b is enabled by way of flow motor 140 (as previously described FIG. 2E but not shown here).

Flush chamber rotating axis 212 is functionally associated with cog wheel 208 causing it to turn. As cog wheel 208 rotates it in turn urges additional gear works 206 and finally gear cog wheel 204 to rotate. Gear cog wheel 204 is coupled with central (inner) axis 202 providing central axis 202 with rotational motion. The central axis 202 is functionally coupled with non- stationary housing 155 via a transmitter 210 (FIG. 6B, FIG.7B) therefore rotation of central axis 202 generates movement of non- stationary housing 155.

Assembly 200 comprises a flush chamber rotating axis 212, disposed within the flush chamber 103, and a central rotating axis 202 provided to span the length of filter assembly 100 and to transmit the rotational motion of proximal portion 258b into flush chamber 101. Proximal portion 258b is directly associated with flush chamber rotating axis 212 which in turn is functionally associated with a gear and/or cog wheel 208 such that the rotation of proximal portion 258b causes rotation of cog wheel 208 via flush chamber rotating axis 212. Cog wheel 208 is in turn mechanically associated with gear 204 that in turn is associated with axis 202. Mechanical association between gear 204 and cog wheel 208 is provided with mechanical gear work assembly 206, transmission and parts or the like mechanical assembly as is known in the art, however not shown in detail herein for simplicity of understanding, such mechanical gear assembly 206 function to associate gear 204 and cogwheel 208 forming a part of assembly 200 however not shown herein in detail..

Accordingly the rotational movement of flush pipe proximal portion 258b causes movement of flush chamber rotating axis 212 and in turn cog wheel 208 that is transferred to gear 204, via the necessary gear works assembly 206, and finally causing the rotation of axis 202.

In some embodiments proximal portion 258b may be directly functionally associated with a gear and/or cog wheel 208.

While not described in detail herein, the assembly 200 is fit with the appropriate seals, bearings and the like friction reducing parts provided to ensure maximal transmission of rotational motion.

Axis 202 is fit internally to flush pipe 258 spanning both distal portion 258a and proximal portion 258b, through cleaning module 150 and distal axis 151.

Cleaning module 150 and distal axis 151 are configured and function in the same manner as previously described.

Axis 202 is associated with distal portion 258a with transmitter 210 such that the rotational motion of axis 202 is transmitted to flush pipe distal portion 258a. Preferably transmitter 210, FIG. 6B, FIG. 7B, is configured so as to allow debris 14 to flow through distal portion 258a and into proximal portion 258b across virtual seal 258s.

Accordingly the rotation of distal portion 258a is thereafter utilized to bring about the rotation and linear movement of cleaning module 150 as previously described with the aid of movement converter module 160. Distal portion 258a may be associated with non- stationary housing 155 over flush pipe side rail 258r, configured and function in the same manner as side rail 158r, by association over cap 156 and cap recess 156r as previously described. Thereafter rotational to linear movement converter module 160 is utilized to convert rotational and linear movement of cleaning module 150 as previously described with the interaction of stationary housing 154 and non- stationary housing 155. Although cleaning module 150 is not explicitly shown in FIG.6A however it functions in the same manner as previously described.

While the invention has been described with respect to a limited number of embodiment, it is to be realized that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.

Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not described to limit the invention to the exact construction and operation shown and described and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.

It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable sub-combination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.

It should be noted that where reference numerals appear in the claims, such numerals are included solely or the purpose of improving the intelligibility of the claims and are no way limiting on the scope of the claims.

Although the invention has been described in conjunction with specific embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the scope of the appended claims .

Citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the invention.

Section headings are used herein to ease understanding of the specification and should not be construed as necessarily limiting.

Claims

claimed is:

An apparatus for facilitating cleaning and flushing of a self-cleaning screen filter apparatus (100) featuring a screen filter (120), the apparatus comprising a:

a. the cleaning module (150) comprising a stationary housing (154) and a non- stationary housing (155) that are configured to be concentric with one another: said housings are adjacent to one another and associated over a rotational to linear movement converter module (160) such that said non-stationary housing is configured to be pivoted and move relative to said stationary housing; and wherein said relative movement includes both rotational movement and linear movement;

b. said non- stationary housing (155) featuring:

i. two capped ends each capped with two individual sealing caps (152, 156) defining an internal lumen (155L); wherein each of said sealing caps comprises a central recess for receiving an axis therethrough for facilitating the linear movement of said non- stationary housing (155);

ii. at least one suction nozzle (155n) having a flow path between a nozzle first end and a nozzle second end; wherein said first end is associated over a filtering surface of a screen filter (120) and configured for suctioning debris away from said screen filter (120) and wherein said second end is in communication with said internal lumen (155L) such that debris flow (14) is received at said nozzle first end and flows through said nozzle second end to said internal lumen (155L) and allowed to flow to a flush pipe (158);

c. said flush pipe (158) is configured to be in fluid communication with said lumen (155L) such that flush pipe (158) receives debris flow (14) from lumen (155L); wherein said flush pipe (158) is passively and/or non-rigidly associated with said non-stationary housing (155) at one of said ends through one of said sealing cap (156); such that at least a portion of said flush pipe (158) is internal to said lumen (155L) and wherein said flush pipe (158) and said non- stationary housing (155) are passively and/or non-rigidly associated with one another wherein their rotational movement is concerted; said flush pipe (158) including a distal portion (158a), and a proximal portion (158b) that are continuous with one another; i. said distal portion is disposed internal to and concentric with lumen (155L) of said non-stationary housing (155); said distal portion having an open distal end (158d) forming a flush flow inlet for receiving debris flow (14) from lumen (155L); said distal portion (158a) featuring a guiderail (158r) along an external surface thereof, said guiderail providing for guiding the linear movement of said non- stationary housing (155) along at least a portion of the length of said distal portion (158a); wherein said guiderail (158r) is passively and/or non- rigidly associated with said sealing member (156) over a recess (156r) corresponding to said guiderail (158r); therein said guiderail (158r) defines a proximal end linear movement axis of said non- stationary housing (155);

ii. said proximal portion (158b) featuring a capped proximal end (158c) and at least one opening (158o) disposed adjacent to said capped proximal end (158c) wherein said at least one opening (158o) defining a flush pipe outlet for ejecting said debris flow (14) out of said flush pipe (158).

The apparatus of claim 1 wherein the distal end of said non- stationary housing is sealed with said sealing cap (152) that further comprises a distal end axis (151) about its center and wherein said distal end axis (151) defines a distal end linear movement axis of said non-stationary housing (155).

The apparatus of claim 2 wherein said distal end axis (151) and said flush pipe (158) are configured to have matching surface areas.

4. The apparatus of claim 1 wherein said non-stationary housing is internal to said stationary housing.

5. The apparatus of claim 1 wherein said non-stationary housing is external to said stationary housing.

6. The apparatus of claim 1 wherein said movement conversion module (160) is provided in the form of corresponding threading disposed on adjacent surfaces of said stationary and said non stationary housings.

7. The apparatus of claim 6 wherein said corresponding threading is male/female threading.

8. The apparatus of claim 6 wherein said a rotational to linear movement converter is provided in the form of guide track and corresponding pin.

9. The apparatus of claim 6 wherein said a rotational to linear movement converter is provided in the form of magnetic and/or electromagnetic interaction.

10. The apparatus of claim 6 wherein said a rotational to linear movement converter is provided in the form of gear work;

11. A fluid filter cleaning apparatus comprising: a housing (102) having an inlet port (112), an outlet port (114) and a valved flush flow outlet (116) , said housing defining a fluid passage between said ports through a filtering member (120); a filter cleaning module (150) according to any one of claims 1 -10 that is mounted within said housing (102) and wherein said non- stationary housing (155) of said cleaning module (150) provides a fluid flow path between said inlet port (112) and said valved flush flow outlet (116); and a rotational movement driver (132,140) adapted to cause the rotational movement of said flush pipe (158) and said non- stationary housing (155) by association therewith; the arrangement being such that when said filter is at least partly clogged said valved flushing outlet is opened causing fluid flow reversal across said filter member (120) wherein the flush flow (14) flows into said cleaning module (150) through said at least one suction nozzle (155n), into said lumen (155L), then into said flush pipe (158), and out of said flush flow outlet (116); wherein said rotational movement driver (132,140) is directly associated with said flush pipe (158) causing it to rotate, in turn causing said non- stationary housing (155) of said cleaning module (150) to rotate concertedly; and wherein the rotational motion of said non- stationary housing (155) with interaction of said rotational to linear movement converter module (160) to selectively translate the rotational movement of said non-stationary housing (155) to linear movement of said non-stationary housing (155) such that only said non- stationary housing (155) is provided with both rotational and linear movement.

The apparatus of claim 11 wherein said rotational movement driver is a fixed motor disposed external to said housing (102).

The apparatus of claim 11 wherein said rotational movement driver is a fluid flow motor (140) disposed internal to said housing (102) responsive to the flush flow (14) such that flush flow (14) causes the rotational movement of said flow motor (140) that in turn cause the rotation of said flush pipe (158) and said non-stationary housing (155).

The filter apparatus of claim 11 wherein said housing (102) further comprises an internal dividing plate (108) provided for creating at least two internal chambers including a filter chamber (101) and a flushing chamber (103):

a. wherein said filter chamber (101) houses said filter member (120) and at least a portion of said cleaning module (150) including: said stationary housing (154), said non- stationary housing (155), and said flush pipe distal portion (158a); and

b. wherein said flushing chamber (103) houses said flush pipe proximal portion (158b).

The apparatus of claim 11 wherein said non-stationary housing is internal to said stationary housing and wherein said stationary housing is affixed to an upper portion of said filter chamber along an upper cap (124) member of said filter member (120).

The apparatus of claim 11 wherein said non-stationary housing is internal to said stationary housing and wherein said stationary housing is affixed to an upper portion of said filter chamber along a dividing plate (108) member of said filter member (120).

17. The apparatus of claim 11 wherein said non-stationary housing is internal to said stationary housing and wherein said stationary housing is affixed to a lower portion of said filter chamber along a lower cap (122) member of said filter member (120).

18. A non-stationary housing (155) having a hollow cylindrical body having an upper end, and a lower end defining therebetween an internal open lumen (155L); an external surface having an first portion (158a) featuring at least one opening (158o) and a second portion (158b) featuring bidirectional threaded track (162).

19. The non-stationary housing (155) of claim 18 wherein each of said upper end and said lower end are capped with a capping member (152,156).

20. The non- stationary housing (155) of claim 18 further comprising at least one suction nozzles configured to securely fit over said at least one opening (158o).

21. The apparatus of any one of claim 1-20 wherein said plush pipe (158) is provided in the form of a split flush pipe assembly (258) having a proximal portion (258b) and a distal portion (258a) featuring guiding railings (258r); and wherein said proximal portion (258b) is operationally coupled with motion transmitter assembly (200) such that the rotational motion of said proximal portion (258b) and said transmitter assembly (200) are coupled.

22. The apparatus of claim 21 wherein said motion transmitter assembly (200) a central axis (202) and gear work assembly (204, 206, 208), wherein said gear work assembly (204, 206, 208) is rotationally coupled with said proximal portion (258b) and wherein said central axis (202) is rotationally coupled with said distal portion (258a) with a motion transmitter (210).

23. The apparatus of claim 22 wherein said flush pipe proximal portion (258b) is functionally associated with a cog wheel (208) of said gear work assembly and wherein said central axis (202) is functionally coupled with a gear (204) of said gear work assembly.

24. The apparats of claim 23 wherein said cog wheel (208) and said gear (204) are associated with one another with gear work assembly (206).

25. The apparatus of claim 22 wherein said distal portion (258a) is associated with said non-stationary housing (155) along said railing (258r).

26. The apparatus of claims 22 wherein said motion transmitter assembly (200) further comprises a flush chamber rotating axis (212) disposed within flush chamber (103) and is characterized in that it is functionally coupled to both said flush pipe proximal portion (258b) and a portion of said gear work assembly (204, 206, 208).

27. The apparatus of claim 26 wherein said flush chamber rotating axis (212) is coupled with a cog wheel (208) of said gear work assembly of said gear work assembly and wherein said central axis (202) is functionally coupled with a gear cog wheel (204) of said gear work assembly.

28. The apparats of claim 27 wherein said cog wheel (208) and said gear (204) are associated with one another utilizing a gear work assembly (206).

29. The apparatus of claim 22 wherein said motion transmitter assembly (200) comprises flush chamber rotating axis (212), a central axis (202) and gear work assembly (204, 206, 208), wherein said gear work assembly (204, 206, 208) is rotationally coupled with said proximal portion (258b) and wherein said central axis (202) is rotationally coupled with said distal portion (258a) with a motion transmitter (210).

30. The apparatus of any one of claims 22-29 wherein said distal portion (258a) is associated with said non- stationary housing (155) along said railing (258r).