US3466673A - Hydropneumatic flushing cisterns - Google Patents

Hydropneumatic flushing cisterns Download PDF

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Publication number
US3466673A
US3466673A US592057A US59205766A US3466673A US 3466673 A US3466673 A US 3466673A US 592057 A US592057 A US 592057A US 59205766 A US59205766 A US 59205766A US 3466673 A US3466673 A US 3466673A
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United States
Prior art keywords
water
closure member
container
chamber
cistern
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Expired - Lifetime
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US592057A
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English (en)
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Rene Boccard
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Individual
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Individual
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Priority claimed from FR9478A external-priority patent/FR90191E/fr
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/34—Flushing valves for outlets; Arrangement of outlet valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/30—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage
    • E03D1/302—Valves for high or low level cisterns; Their arrangement ; Flushing mechanisms in the cistern, optionally with provisions for a pre-or a post- flushing and for cutting off the flushing mechanism in case of leakage with valves kept in open position by means of air or water pressure or by vacuum
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E03D3/02—Self-closing flushing valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E03D3/10—Flushing devices with pressure-operated reservoir, e.g. air chamber

Definitions

  • a hydro-pneumatic flushing cistern comprising a container, portions of said container defining a water inflow port for feeding water to the interior of said container, a valve seat at the base of said container bounding a water outow port of greater through-flow area than is said inow port for leading flushing water from said container, a valve closure member in said interior movable kbetween a closed position in which it contacts said seat and closes said outflow port and an open position which is above said closed position, biasing means urging said closure member away from said open position and towards said closed position, a cover covering said valve closure member, portions of said cover and said valve closure member defining therebetween a chamber, duct means communicating with said chamber for leading water thereto, and flow-producing means for producing a flow of water from said chamber such as to cause the upward force on said closure member to exceed the downward force on said closure member, whereby said closure member is opened.
  • FIGURE 1 is a fragmentary vertical axial section through a hydro-pneumatic flushing cistern of a watercloset, with a pilot valve and a water outflow valve in closed conditions;
  • FIGURE 2 is a detail of FIGURE 1, but illustrates a first stage in the initiation of the flushing operation
  • FIGURE 3 is a fragmentary section taken on the line 3-3 of FIGURE 2;
  • FIGURES 4 and 5 are similar views to FIGURE 2, but illustrate respective second and third stages in the initiation of the flushing operation;
  • FIGURE 6 is a view similar to FIGURE 1, but showing a first modified version of the cistern
  • FIGURES 7 and 8 are a detail of FIGURE 6, but illustrate respective stages in the initiation of the flushing operation
  • FIGURE 9 is a view similar to FIGURE 1, but showing a second modified version of the cistern;
  • FIGURE 10 is a fragmentary, vertical, axial section through a water outfiow valve and an opening device therefor in a third modified version of the cistern;
  • FIGURE 11 is a fragmentary, vertical axial section through a modification of the opening device
  • FIGURE 12 is a section taken on the line 12-12 of FIGURE 11;
  • FIGURE 13 illustrates a fragmentary, vertical axial section through a fourth modified version of the cistern, with a water outow valve closed;
  • FIGURE 14 is a view similar to FIGURE 13, but with lthe water outflow valve open;
  • FIGURES 15 and 16 are views similar to FIGURE 13, but of fifth and sixth modified versions of the cistern.
  • FIGURE 17 is a view similar to FIGURE 1, but of a seventh modified version of the cistern.
  • the cistern includes a substantially fluid-tight container 1 which, in he -example illustrate-d, is ⁇ cylindrical and has a top wall
  • the base wall of the container 1 could be welded to the bottom of the side wall of the container, or could be separate therefrom and fixedtherein as will now be described.
  • the base wall 4 (see FIGURE 9) of the container includes a planar wall portion 4a (see FIGURE 6) which is laterally integral with a sloping annular Wall portion 4b which at its outer periphery is integral with a curved, annular, channel-form, wall portion 4c which, with the portion 2a, bears in a fluid-tight manner against the packing 3.
  • the pressure of the base wall 4 against the packing 3 is produced by an externally screw-threaded ring 5 screwed into an internally screw-threaded lower portion of the member 2.
  • a circlip disposed, after compression of the packing 3, in a circular groove in the member 2 extending under the portion 4c.
  • the wall 4 is formed with a large-dimension aperture permitting the insertion and securing therein, by welding or the like, of a flushing pipe 6 (see FIGURE 4), whereas laterally a water inflow port 7, of a smaller through-How area than is the water outflow port at the top of the pipe 6, debouches through the sloping wall portion 4b.
  • the container 1 is provided with a cover 8 the lower edge of the side wall 8a (See FIGURE 6) of which bears on the planar wall portion 4a.
  • the cover 8 is for example of cylindrical shape and is positioned on the wall 4 by means of peripheral projecting tongues 8c fitted or directly formed on the side wall 8a at pre-determined angular spacings.
  • the tongues 8c may be resiliently engaged or otherwise secured in studs 4d fitted or directly formed on the portion 4b and corresponding in number and annular spacing to the tongues 8c.
  • this positioning is effected by means of three tongues 8c engaging in three corresponding studs 4d distributed at an angular spacing of 120.
  • cut apertures 8d which are circular in the example illustrated, and are uniformly spaced apart at the same level and provide communication between the interior of the container 1 outside the cover 8 and the interior of the cover 8.
  • the valve closure member 9 is manufactured from a ilexible or semi-rigid material, for example plastics material or rubber. Axially, it has extending through it a cylindrical hole receiving a conduit 10 of corresponding shape on which the member 9 is arranged to slide, preferably in a uid-tight manner. Peripherally, the member 9 has a triangular cross-section a vertical tace 9b of which is parallel to the side Wall 8a leaving between the face 9b and the side wall a clearance e permitting passage of water between the chambers c1 and c2 formed within the cover 8 respectively below and above the cover 8.
  • pilot means may be provided for bringing about an outow of the water contained in the chamber c2, in such manner as to diminish the downward force exerted on the valve closure member 9, this causing the opening of the valve closure member and resulting in the sudden freeing of the outiiow port for the water contained in the cistern and, consequently, in the desired flushing effect.
  • This pilot means may consist of a simple cock, or a lever with a valve closure member.
  • this pilot means preferably consists of a plungentype valve requiring the application of a small thrust force to bring about the initiation of the flushing action.
  • the plunger-type valve includes a plunger button 12 centered and freely slidable in a bear* ing face 13a of corresponding crosssection formed in one end of a sleeve 13 which is radially fixed in the pipe 6.
  • the sleeve 13 is provided axially with a chamber 13b the peripheral wall of which has extending through it cylindrical perforations 13C which establish communication between the chamber 13b and the pipe 6.
  • the button 12 has iixed thereto co-axially a plunger rod 12a which is guided and slides in a Huid-tight manner in a packing 14 disposed at the inner end of the chamber 13b of the sleeve 13.
  • the rod 12a carries two valve closure members in the form of frusto-conical lips 12b and 12e which increase in diameter in respective opposite axial directions.
  • the valve lips 12b and 12C extend axially through a pilot valve closure member 15 the aperture 15a in which they are arranged to close alternately.
  • the lip 12b is ycontinually urged against the member 15 by a spring 16 mounted between the lip 12b and the outer end face of a chamber 17a of a plug 17 which is secrewed into an internally screwthreaded sleeve 18 secured, by welding or the like, in the pipe 6 at a location diametrically opposite to the sleeve 13.
  • a spring 16 mounted between the lip 12b and the outer end face of a chamber 17a of a plug 17 which is secrewed into an internally screwthreaded sleeve 18 secured, by welding or the like, in the pipe 6 at a location diametrically opposite to the sleeve 13.
  • two chambers c3 and c4 which are provided by forming the lower end of the conduit 10 with two envelopes or cylindrical and co-axial walls 10a and 10b perpendicular to the conduit 10.
  • the action of the spring 16 on the double valve tends to maintain the button 12 in a projecting position, to maintain the aperture 15a closed by the lip 12b of the double valve, and to maintain the member 15 abutted against the free circular end of the wall 10b which acts as the pilot valve seat, the result of this being to separate the chamber c4 from the chamber c3 and the conduit 10.
  • the member 15, centered in the chamber c3, is provided at its outer periphery with a triangular lip 15b a horizontal face 15c of which is parallel to the cylindrical wall 10a, leaving between it and the wall a clearance e1 permitting communication between the conduit 10 and the chamber 17a.
  • the pilot means is mounted at the base of the cistern and directly in the pipe 6.
  • the pilot means may also be mounted at other points, for example in the case of a cistern disposed at a relatively low level, at the upper part of the container as shown in FIGURES 6 to 8.
  • the functioning of the ushing cistern is identical and the main features of the cover 8 mounted on the base wall 4, the pipe 6, the seating 6a thereof, the valve closure member 9 and the spring 11 are again present.
  • the pilot valve has a cylindrical sleeve 19 of large dimensions for housing the parts of the valve.
  • the sleeve 19 is secured in any known manner to the upper part of the container 1 and, preferably, to the centre of the top wall 1a, as shown. Internally, the sleeve 19 has a smaller co-axial sleeve 20 forming the chamber c4 and having communication perforations 20a. A partition 21 having a sealing packing 21a separates the chamber c4 and the chamber c3 formed at the closed lower end of the sleeve 19.
  • the same arrangement as in the version of FIGURES 1 to 5 is provided in repect of the plunger button 12, the plunger rod 12a, the double valve, the spring 16, and the pilot valve closure member 15.
  • conduit 1t now extends upwards from the cover 8y to establish communication between the chamber c2 and the chamber c3 formed below the member 15.
  • An auxiliary conduit 22 leads from the chamber c4 to the pipe 6 to permit the partial evacuation of the water contained in the sleeve 19.
  • the water is admitted into the container 1 through the inflow port 7.
  • the water lills the container up to the point of equilibrium between the water pressure and the pressure of the air cushion compressed in the upper part of the container.
  • the ⁇ water penetrates into the cover 8 and provides opposing upward and downward pressures on the member 9, the spring 11 maintaining the member 9 closed on its seating 6a.
  • the water also flows through the conduit 10 into the chamber c3.
  • the water lls the chamber and, as it flows about the pilot valve closure member 15, provides opposing axial pressures on the member 15 which is maintained in its closed position owing to the spring 16 acting on the double valve which, by means of its lip 12b, closes the axial aperture 15a.
  • the filling of the cistern is effected (FIGURES 1 and 6).
  • the lip 12b of the double valve On exertion of pressure on the button 12, the lip 12b of the double valve is urged away from the aperture 15a against the action of the spring 16 (FIGURE 2).
  • the water contained in the chamber 17a is able to ow, via the aperture 15a into the chamber c4 and, via the apertures 13e, or 20a, into the pipe 6.
  • the resultant force on the member 9 is downward and urges the member 9 against its Seating 6a whereupon the container 1 is re-iilled.
  • a further advantage of the cistern resides in its silent operation, notably during lling, since the inflow 0f water through the port 7 is eiected directly, without constriction, and therefore without prolonged whistling There is always a small quantity of water in the bottom of the container, so that spurts entering the container from the port 7 are damped. This direct, unconstricted inflow of water is rendered possible because the main valve closure member is protected from turbulence and guided yand retained by the cover 8.
  • the container 1 may contain a flexible diaphragm R which improves the silent operation of this ilushing system.
  • the diaphragm R is connected in a substantially uid-tight manner at its periphery to the botom of the side wall of the container round the whole circumference of the side wall.
  • a vertically slidable rod 23 is mounted in a fluid-tight manner in a tube 24 secured in any known manner to the centre of the top Wall of the container 1 'and of the cover 8.
  • the tube 24 In its upper end, the tube 24 has a sealing and guiding packing 24a through which extends axially the rod 23 the upper end of which is visible above the container and carries a grasping ring '23a permitting the manual opening of the pilot valve.
  • the tube 24 opens into the chamber c2 through the flat top wall 8b of the cover 8 to which the tube is iixed in any known manner.
  • a bulge 24b constituting a chamber c5 in which is disposed packing 2-5, which may be of the stuffing box type for example having on each face a metal washer 25a.
  • the action for initiating the flushing operation consists of a simple pull in the direction of the arrow F on the rod 23 to cause the member 27 to open and permit the preliminary flow through the hole 9d of the water contained in the upper chamber c2, whereby an upward resultant force on the member 9 then opens the latter.
  • FIGURE shows a version in which the opening means for the pilot valve is directly mounted on the pipe 6.
  • the member 9 centered in the cover 8 has extending axially through its hole 9d a slidable thrust rod 28 the upper end of which carries the pilot valve closure member 27.
  • the member 27 is urged to close the h old 9d by a compression spring 29 mounted between the horizontal top wall 8b and a washer 30 secured to the rod 28 above the member 27.
  • the rod 28 is guided by any suitable device, such as a ring 31 carried in the pipe 6 by radial bars ⁇ so as not to hinder significantly the water flow.
  • the lower extremity of the rod 28 bears continually, under the action of .the spring 29, against an eccentric cam 32 fast with a turnable shaft 33 diametrically mounted in the pipe 6.
  • the turning of the shaft 33 is manually performed by means of an arm 34 xed to the end of the shaft 33 outside the pipe 6, the bearing faces of the shaft 33 in the pipe Wall being rendered iiuid-tight in any known manner, Turning of the arm 34 in the direction of the arrow F results in an angular displacement of the cam 32 which produces an upward thrust on the rod 28 to raise the member 27 and cause the flushing to occur.
  • the main valve closure member 9 is no longer mounted for sliding in the cover 8, but has its annular portion 9e projecting laterally beyond the seat 6a of a thickness which is such that the member 9 is suiciently strong and yet may exhibit a degree of flexibility permitting, under the action of water pressure exerted upwardly or downwardly, deformation of the portion 9e in the manner to be described.
  • the outer periphery 9j of the annular portion 9d is xed by any appropriate means, and in a Huid-tight manner, on a ring 39, the arrangement being such as to tend to maintain the member 9 in its closed position on the seat 6a.
  • a cover 37 the top wall 37b of which is formed with a water inlet opening 37c.
  • the throughflow area of the opening 37e is changeable by for example tting therein, during assembly of the cistern, a bush 38 from a number of bushes of differing diameter, the selected bush 38 having a diameter corresponding to the Water supply pressure. Any other suitable means 37e may be utilised.
  • the cover 37 bounds, above the member 9, the chamber c2 receiving the necessary volume of Water via the opening 37C, in such manner that a pressure giving huid-tight closure is exerted by the member 9 on the seat 6a.
  • the throughflow area of the opening 37e is substantially less than that of the outow conduit 10, so that, during the initiation of the ilushing operation, there is obtained in the chamber c2 a lower pressure than that below the downwardly facing surface of the annular portion 9e.
  • the periphery 9f of the valve is provided with an upwardly and inwardly directed annular lip portion to form an annular seating 9g in which is engaged in a fluid-tight manner a laterally outwardly directed annular flange portion 37a of the cover 37.
  • the latter is made for example from stamped sheet-metal.
  • the assembly comprising the member 9 and the cover 37 is centered by the periphery 9f in the circular ring 39 the inside 39a of which enables the water pressure to be exerted upwardly against the portion 9e. If necessary, depending on the mode of assembling the cistern, the cover 37, the member 9 and the ring 39 may be assembled by means of screws or the like.
  • the ring 39 may for example be carried by legs 40 appropriately distributed and secured to the ring which is at a suitable distance from the base Wall 4.
  • the legs 40 may bear freely on the Wall 4.
  • the ring 39 may also be carried in any suitable manner, with appropirate spacing, above the base wall 4.
  • the initiation stages of the flushing operation are basically identical with those previously described.
  • the push button 12 When the push button 12 is pressed, there is produced a ow of the water contained in the chamber c2 through the conduit 10. Owing to the difference between the inflow and outflow areas for the chamber an upward resultant force is produced on the member 9, as indicated by the arrow F1, deforming the member 9 which is thus raised from the seat 6a and opens the water outflow port through which the water in the cistern is evacuated.
  • the water again enters the cistern through the port 7 and also enters the chamber c2 through the opening 37C, in such manner as to till the chamber c2 under a pressure ensuring the closure of the pipe 6 as already described.
  • FIGURE 15 shows a version in which the cover has a side integral with the ring.
  • This cover 41 includes a vertical cylindrical tube receiving at its bottom in a fluid-tight manner the circular periphery 9j of the member 9, the tube being closed at its upper end either by means of a separate itted plate 41a, xed in any suitable manner, or by a top wall integral with the tube.
  • FIGURES 16 and 17 show applications to the cistern 7 of FIGURE 13 of the pilot Valves and controls therefor already described with reference to FIGURES 6 and 10.
  • the evacuation of the chamber c2 is achieved by means of the arm 34 acting via the cam 32 on the push rod 28 carrying at its free end the pilot Valve closure member 27 maintained by the spring 29 in a position closing the hole 9d formed in the member 9.
  • this device can instead include a slidable rod extending through the top wall of the container.
  • FIGURE 17 shows the pilot valve operable by means of a push button and mounted in the upper part of the cistern.
  • the base wall 4 is a stamped circular annulus the annular outer peripheral edge portion of which is turned down for resilient engagement in the bottom of the side wall of the container 1.
  • the wall 4 may be secured to the side wall of the container by spot welding or by seam welding of the contiguous edges at s. Fluid-tightness of the peripheral joint is achieved by internally fitting the joint with a packing made of for example poured plastics material, or any other suitable packing.
  • the pipe 6 is hard-soldered, at 4a, into the central aperture in the wall 4.
  • the ushing cistern has at its upper part, preferably in the top wall 1a, a non-return valve which, in the example illustrated in FIGURE 17, includes a hollow casing 36 secured by hard-soldering or other means in the top wall 1a of the container 1.
  • a ball 36a is urged by a compression spring 36h against a corresponding seat formed in the upper portion of the casing 36.
  • a port 36C closable by the ball 36b, establishes communication between the interior of the container 1 and the ambient atmosphere. This non-return valve permits the automatic replacement of any air which may escape during the ushing action.
  • a suction eect is set up in the container which causes a small inflow of air through the non-return valve, thus making it possible to maintain within the container a volume of air sufficient to produce the flushing effect.
  • a hydro-pneumatic flushing cistern comprising a container, portions of said container defining a water inow port for feeding water to the interior of said container, a valve seat at the base of said container bounding a water outflow port of greater through-ow area than is said inow port for leading flushing water from said container, a valve closure member in said interior movable between a closed position in which it contacts said seat and closes said outow port and an open position which is above said closed position, biasing means urging said closure member away from said open position and towards said closed position, a cover covering said valve closure member, portions of said cover and said valve closure member defining therebetween a chamber, duct means communicating with said chamber for leading Water thereto, said duct means comprising other portions of said closure member and said cover defining therebetween a lateral clearance, and portions of said cover below said lateral clearance bounding aperture means upstream of said clearance with respect to water ow to said chamber; and flow-producing means for producing a ow of water from said chamber such as to cause the upward
  • a cistern according to claim 1 and further comprising a projecting portion of said closure member projecting laterally outwardly beyond said seat and providing a downwardly facing surface for the application of an opening force on said closure member by water in said container.
  • a cistern according to claim 1, wherein said flow-producing means comprises conduit means leading from said chamber and a pilot valve in said conduit means operable to permit flow of water from said chamber via said conduit means.
  • pilot valve comprises a pilot valve housing, a pilot valve seat in said housing encircling a pilot valve port, a pilot valve closure member in said housing movable between a closed position in which it closes said pilot valve port and an open position, portions of said pilot valve closure member defining an aperture therein, an opening plunger extending through said aperture and movable longitudinally to a limited extent relatively to said pilot valve closure member for displacing said pilot valve closure member from its closed position to its open position, third and fourth valve closure members provided on said plunger and operable to close alternately said aperture, and pilot valve biasing means urging said pilot valve closure member away from its open opsition and towards its closed position, said pilot valve closure member having its side remote from said pilot valve seat exposed to the pressure in said chamber when in its closed position.
  • a cistern according to claim 3 and further comprising a flushing pipe leading downwardly from said water outflow port and having said pilot valve mounted therein, said conduit means opening into said pipe.
  • a cistern according to claim 3 and further comprising a top wall of said cistern having said pilot valve mounted therein, and a manually operable opening member of said pilot valve extending upwardly through said top wall, said conduit means extending from said chamber to said water outflow port via said pilot valve.
  • a cistern according to claim 3, whe-rein said conduit means comprises portions of said closure member defining a hole therethrough communicating said chamber with said water outiiow port, and said pilot valve comprises a pilot valve closure member movable between a closed position in which it closes said hole and an open position above its closed position, pilot valve biasing means urging said pilot valve closure member away from its open position and towards its closed position, and pilot valve opening means operable to open said pilot valve closure member.
  • a cistern according to claim 1 wherein said biasing means comprises a exible annular projecting portion of said closure member projecting laterally outwardly beyond said seat round the whole circumference of said seat and providing a downwardly facing surface for the application of an opening force on said closure member by Water in said container, said cistern further comprising a ring in said container stationary relative to said container and closely encircling the outer periphery of said projecting portion and having said outer periphery xed thereto, and portions of said ring and the base wall of said container defining aperture means therebetween for permitting access of water to said downwardly facing surface, said cover extending to the region of said outer periphery and being connected to said outer periphery in a substantially Huid-tight manner round the whole of said outer periphery.
  • a cistern according to claim 11 and further comprising an upwardly and inwardly directed annular lip portion of the Valve closure member in the region of said outer periphery, and a laterally outwardly directed annular flange portion at the periphery of said cover engaged between said resilient annular projecting portion and said annular lip portion.
  • a cistern according to claim 1 wherein the base wall of said container is separate from the side wall thereof, said cistern further comprising an inverted annular channel-form member iixed in a iluid-tight manner round the inner periphery of the bottom of said side wall and projecting inwardly over said base wall, an annular packing extending in said channel-form member round the whole circumference thereof, and compressed between said channel-form member and said base wall, and clamping means maintaining said base wall pressed against said packing.
  • a cistern according to claim 1 wherein the base wall of said container is separate from the side wall thereof, said cistern further comprising a turned-down annular peripheral portion of said base wall adjacent to the bottom of said side wall and resiliently engaged in said bottom of said side wall, a weld securing said annular peripheral portion to said side wall, and an annular packing interposed in a substantially fluid-tight manner between said annular peripheral portion and said bottom of said side wall and extending round the whole circumference of Said annular peripheral portion.
  • a cistern according to claim 1 wherein said container is substantially iluid-tight and has a top wall, said cistern further comprising a pre-loaded, non-return valve mounted in said top wall for automatically admitting air to compensate for loss of air from the interior of said container during the outllow of flushing water.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
US592057A 1965-11-09 1966-11-04 Hydropneumatic flushing cisterns Expired - Lifetime US3466673A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9319A FR1453687A (fr) 1965-11-09 1965-11-09 Réservoir de chasse hydro-pneumatique, à commande perfectionnée, pour waterclosetet autres applications
FR9478A FR90191E (fr) 1966-06-03 1966-06-03 Réservoir de chasse hydro-pneumatique, à commande perfectionnée, pour watercloset et autres applications

Publications (1)

Publication Number Publication Date
US3466673A true US3466673A (en) 1969-09-16

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US592057A Expired - Lifetime US3466673A (en) 1965-11-09 1966-11-04 Hydropneumatic flushing cisterns

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US (1) US3466673A (fr)
BE (1) BE688148A (fr)
CH (1) CH450311A (fr)
DE (1) DE1609227A1 (fr)
ES (1) ES332277A1 (fr)
FR (1) FR1453687A (fr)
GB (1) GB1130796A (fr)
SE (1) SE314342B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789432A (en) * 1971-04-19 1974-02-05 Trombe Flushing system
US4041556A (en) * 1975-04-09 1977-08-16 Darling Stanley N Flushing method and apparatus
EP0430521A2 (fr) * 1989-11-30 1991-06-05 American Standard Inc. Mécanisme de chasse d'eau
EP1161601A1 (fr) * 2000-01-14 2001-12-12 Heung-Mook Kang Dispositif d'alimentation en eau de cuvette de w.c.
US20180363281A1 (en) * 2015-04-07 2018-12-20 Frantisek Pancurák A toilet bowl pressure flushing system with shock wave flushing
US10941551B2 (en) * 2017-12-19 2021-03-09 Viega Technology Gmbh & Co. Kg Drain valve for a sanitary cistern

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609138C2 (de) * 1976-03-05 1985-03-07 Georg Rost & Söhne, 4952 Porta Westfalica Spülkastenablaufventil
DE8117090U1 (de) * 1981-04-24 1981-11-26 Ermital AG, 9494 Schaan Spuelvorrichtung fuer wasserklosetts
GR1001268B (el) * 1992-05-29 1993-06-30 Vlachogiannis Viktoras Συσκευη καθαρισμου λεκανης υγιεινης, κοινως καζανακι.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580208A (en) * 1897-04-06 Patkick j
US2087099A (en) * 1936-04-10 1937-07-13 Bert O Tilden Flush valve and related construction
FR1256574A (fr) * 1960-02-06 1961-03-24 Chasse automatique pour water closet avec émulsion d'air et eau
US2996727A (en) * 1958-11-03 1961-08-22 Clayton S Rose Positive closing toilet tank valve

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Publication number Priority date Publication date Assignee Title
US580208A (en) * 1897-04-06 Patkick j
US2087099A (en) * 1936-04-10 1937-07-13 Bert O Tilden Flush valve and related construction
US2996727A (en) * 1958-11-03 1961-08-22 Clayton S Rose Positive closing toilet tank valve
FR1256574A (fr) * 1960-02-06 1961-03-24 Chasse automatique pour water closet avec émulsion d'air et eau

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789432A (en) * 1971-04-19 1974-02-05 Trombe Flushing system
US4041556A (en) * 1975-04-09 1977-08-16 Darling Stanley N Flushing method and apparatus
EP0430521A2 (fr) * 1989-11-30 1991-06-05 American Standard Inc. Mécanisme de chasse d'eau
EP0430521A3 (en) * 1989-11-30 1992-11-19 American Standard Inc. Flushing mechanisms
EP1161601A1 (fr) * 2000-01-14 2001-12-12 Heung-Mook Kang Dispositif d'alimentation en eau de cuvette de w.c.
EP1161601A4 (fr) * 2000-01-14 2004-06-16 Heung-Mook Kang Dispositif d'alimentation en eau de cuvette de w.c.
US20180363281A1 (en) * 2015-04-07 2018-12-20 Frantisek Pancurák A toilet bowl pressure flushing system with shock wave flushing
US10941550B2 (en) * 2015-04-07 2021-03-09 Swiss Aqua Technologies Ag Toilet bowl pressure flushing system with shock wave flushing
US10941551B2 (en) * 2017-12-19 2021-03-09 Viega Technology Gmbh & Co. Kg Drain valve for a sanitary cistern

Also Published As

Publication number Publication date
SE314342B (fr) 1969-09-01
ES332277A1 (es) 1967-07-16
DE1609227A1 (de) 1970-04-30
FR1453687A (fr) 1966-06-03
GB1130796A (en) 1968-10-16
CH450311A (fr) 1968-01-15
BE688148A (fr) 1967-03-16

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