US3482267A - Discharge valve,particularly for water closets - Google Patents

Discharge valve,particularly for water closets Download PDF

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Publication number
US3482267A
US3482267A US439310A US43931065A US3482267A US 3482267 A US3482267 A US 3482267A US 439310 A US439310 A US 439310A US 43931065 A US43931065 A US 43931065A US 3482267 A US3482267 A US 3482267A
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Prior art keywords
wall portion
pipe
elastic wall
valve
elastic
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Expired - Lifetime
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US439310A
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English (en)
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Sven Algot Joel Liljendahl
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • F16K7/07—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force by means of fluid pressure
    • 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
    • E03D3/06—Self-closing flushing valves with diaphragm valve and pressure chamber for retarding the valve-closing movement
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore

Definitions

  • the present invention relates to discharge valves of the type wherein passage of fluid through said valve may be prevented by the movement of a resilient part of the wall of a pipe to a closing position against an opposed rigid wall portion, and wherein control means are adapted to act on said elastic wall portion to maintain it, when said valve is in a closed position, in sealing contact with said rigid wall portion, and when said valve is in an open position, to maintain said elastic portion in spaced relationship with said rigid wall portion.
  • An object of the present invention is to make possible .the employment of valves of this kind in a field where up to now such valves have not been used.
  • the valve according to the present invention is adapted to be fitted in the discharge conduit of a water closet bowl in the bottom portion of which a quantity of water is maintained by the valve being in its closed position, a vacuum or partial vacuum existing in the conduit and acting on the discharge side of the valve.
  • the bowl of said water closet will be caused to discharge through said valve by the valve being opened, atmospheric pressure both driving the water through the discharge conduit and at the same time acting on the outside of the elastic wall portion in a closing direction.
  • a valve for the discharge passage a Water closet or the like said valve comprising a pipe with an elastic wall portion and an opposed rigid wall :portion, control means being adapted to act on said elastic wall portion to maintain it, when said valve is in a closed position substantially in sealing contact with said rigid wall portion, and when said valve is in an open position to maintain said elastic portion in spaced relationship with said rigid wall portion, wherein said valve when in its closed position maintains a head of water in said water closet or the like, and wherein said water is discharged by the valve being opened and by air pressure driving the water through the discharge conduit, said air pressure simultaneously acting on the outside of said elastic wall portion in a valve closing direction.
  • said elastic wall portions and rigid wall portions may be so formed 3,482,267 Patented Dec. 9, 1969 and dimensioned relatively to each other that when said valve is in an open position, air passing therethrough will be subjected to a drop in pressure and thus may cause the elastic portion to be drawn towards its closed position.
  • FIGURE 1 is a diagrammatic illustration of a discharge pipe showing a valve, such pipe and valve being shown in longitudinal section;
  • FIGURE 2 is a cross sectional view taken along the line II-II in FIGURE 3.
  • FIGURE 3 shows the embodiment of FIGURE 1 but with the valve in a closed position.
  • FIGURE 4' is a longitudinal section of a modified embodiment of the invention.
  • FIGURE 5 shows diagrammatically as a longitudinal sectional view a further embodiment of valve including a switching device.
  • FIGURE 6 is a practical embodiment of valve shown in perspective and with certain parts cut away, and
  • FIGURE 7 is an enlarged fragmentary view of FIG- URE 5.
  • a metal pipe 1 is provided on its upper side with an aperture 2 extending down to the edges 4 and 5 of the pipe 1.
  • a ridge 3 is provided in the central portion of the aperture extending circumferentially around the inside of the pipe 1 between the two edges 4 and 5.
  • the wall portion between said edges 4 and 5 defines a rigid wall portion 6.
  • a rubber hose 7 of soft rubber is :placed over the pipe 1, and is of sufficient length to extend over the aperture 2 with its two ends 8 and 9 in sealing engagement with the uncut portions of the pipe 1.
  • the pipe system connected with the outlet end 11 may have a slightly larger diameter than the pipe 1 at the valve whereby'a drop of pressure will occur in the valve if air passes through the pipe.
  • valve portion of the pipe is connected to a conduit system having a pipe area which is equal to or slight- 1y smaller than the. cross sectional area of the valve device, then a closing tendency can be induced by -temporarily reducing the cross sectional area of the pipe on the inlet side 10, or by means of a downwardly directed member pressing the rubber hose downwardly whereby the accelerated closing process mentioned above is initiated.
  • the pipe 14 being shaped as an inverted U whereby the rigid wall portion 15 can be defined by an even oval cutting edge 16 which is covered by the elastic wall portion 17.
  • the ridge 18 will be in the topmost bottom part of the rigid wall portion 15. In its closed position the elastic wall portion will assume the position shown with dash dot lines at 19.
  • a device 47 adapted to positively cause the shifting movement and render the. closing of the valve reliable and controllable can be provided as shown in principle in FIG. 5.
  • the elastic wall portion 20 is provided with reinforcement ridges 21 and 22 in which lifting tags 23 and 24 are vulcanized. These tags are adapted to co-opcrate closely with extending bars 25, 26 which are fastened on two spades 27 and 28 of the switching device 47.
  • One of the spades 27 engages the elastic wall portion 20 on the upstream side of the ridge 3. This spade is provided for ensuring that the valve can be brought into a closed position even when no vacuum exists at the outlet end 11 of the pipe 1 since it is still desirable to prevent the water in the water closet bowl from running out through the valve.
  • the spades 27 and 28 have a semicircular operative edge, as shown at 42 in FIG. 6, which has a slightly smaller radius than the rigid wall portion 6 so that the spade can engage the elastic wall portion along the whole engagement edge and press said portion to sealing abutment with the inner side of the rigid wall portion.
  • the spade 28 is provided at the downstream side of the ridge 3 and can have a slightly shorter radius than the spade 27.
  • the spades 27 and 28 are fastened to the bottom of a cylindric vessel 29 in which a metal weight 30 is placed.
  • a fixedly mounted inverted cylindric vessel 31 can be connected to a vacuum source or to the atmosphere via the pipe 32.
  • the cylinders 29 and 31 are in airtight connection with each other by means of an annular resilient diaphragm 23, such as of rubber.
  • the member 47 is caused to shift to its open position by connecting the pipe 32 to a vacuum source whereby the cylinder 29 and the weight 30 are lifted forcibly, and via the spades 27 and 28, the bars 25 and 26 and the tags 23 and 24, the elastic wall portion 20 is raised to its uppermost outward- -ly convex position as shown in FIGURE 1.
  • This lifting movement must be carried out with sufllcient force to overcome the downwardly acting force which may be exerted by the pressure differential between the surrounding air and the vacuum in the outlet end 11 of the pipe 1.
  • air is introduced at atmospheric pressure through the pipe 32 whereby the member 27 immediately starts its closing movement assisted by the weight 30. If a vacuum exists in the portion of the pipe adjacent the outlet end 11, the closing movement will be accelerated as mentioned above.
  • the ridges 3 and 18 have been shown extending at right angles to the longitudinal axis of the pipe. It is, of course, not necessary that the angle is a right angle but also smaller angles may be used provided that the necessary sealing contact can be secured.
  • the elastic wall portion is arranged as a seprate rubber part with an edge ridge 44 which fits in air-tight engagement over an outwardly bent edge around the aperture of the pipe.
  • the pressure in the cylinder 31 can be varied by means of a coupling comprising a hose 34 connected to the pipe 32 and a hose 35 connected to a pipe 36 at the outlet end 11 of the pipe.
  • a two-way switch 37 is provided, which in one position, as shown in FIG. 6 connects the pipe on the down-stream side of the valve with the cylinder 31 via the hoses 35 and 34 and a duct 38 causing the pressure in the cylinder 31 to decrease rapidly. If the disc 39 of the switch 37 is rotated counterclockwise from its position in FIG. 6 the bottom end of the duct 38 will then be closed against the housing 40 while the opposite end of the duct will be connected with a port 41 in free communication with the atmosphere. .Air will then flow through the ducts 38 and 42 and through the hose 34 and the pipe 32 into the cylinder 31 causing the pressure in the cylinder '31 to increase and thus the cylinder 29 will move downwardly.
  • valve is intended for controlling the discharge of water from a Water closet by means of vacuum in the discharge pipe it is very desirable that the valve can be. opened sufficiently rapidly to prevent any appreciable amount of water passing the valve before it has been completely opened.
  • the water quantity on the upstream side has an inertia which depends mainly on the length of the water between its surface in the water closet bowl and the closing point of the valve.
  • the lifting tags 23 and 24 are identical and placed substantially symmetrically relative the ridge 3. Under certain conditions it can be preferable instead to make the arrangement asymmetric, i.e., by making the play between the tags 23, 24 and the bars 25, 26 difierent on opposite sides and/or to place the tags with the ridges 21, 22 difierentially spaced from a plane through the ridge 3 and/or making the tags of different length. By any of these methods the initiation process at opening movement of the valve can be controlled.
  • the elastic wall portion in a zone 45 at the downstream side is exposed to the differential between the atmospheric pressure and the vacuum and, consequently, the material must be dimensioned accordingly so that no disadvantage occurs if the rubber here is slightly thicker and/or stiffer from strength requirements.
  • the pressure differential, if any, on the elastic wall portion in the zone 46 at the upstream side is not substantial. Partly, for these reasons, and partly on account of the desirability of any solid objects in the discharge being tightly enclosed by the zone 46 of the wall portion this zone must be made considerably thinner and more flexible than in the zone 45 and this should be the case both upstream the contact zone and within said zone.
  • a liquid passageway valving arrangement comprismg: a
  • lifting means operatively coupled to said elastic wall portion by coupling means for moving said elastic wall portion from (1) a first position wherein a section of the elastic ,wall portion is sucked against said rigid wall portion so as to restrict liquid flow, to
  • a valving arrangement according to claim 1 wherein said elastic wall portion and said rigid wall portion define between them a flow passage when said elastic wall portion is moved to said second position, said flow passage being smaller in size than the cross sectional area of the pipe on the outlet side of said elastic wall portion so that when said elastic wall portion is in said second position, any air passing therethrough will be subjected to a drop in pressure which will in turn cause the elastic wall portion to close toward its said first position.
  • said lifting means includes a piston operatively connected to said elastic wall portion, said piston having a first surface in contact with atmospheric pressure and a second surface in selective intermittent communication with the subatmospheric pressure created in said pipe, said piston being moved by atmospheric pressure to open said elastic wall portion to said second position when said second surface of said piston is placed in communication with the subatmospheric pressure in the pipe.
  • a liquid passageway valving arrangement comprismg:
  • an elastic wall portion intermediate said inlet and outlet ends having an interior side that is at least periodically subjected to subatmospheric pressure and an exterior side that is subjected to the force of atmospheric pressure, and t (3) a substantially rigid wal portion intermediate said inlet and outlet ends and disposed opposite to said elastic wall portion;
  • lifting means operatively coupled to said elastic wall portion by coupling means for moving said elastic wall portion and said holding means from (1) a first position wherein the elastic wall portion contacts said rigid wall portion so as to restrict liquid flow, to
  • said lifting means being responsive to a pressure differential
  • said coupling means being attached to said elastic wall portion in such a way that in said first (closed) position, the section of the elastic wall portion that is being sucked against said rigid wall portion is attached to the coupling means in a sufficiently loose manner that the elastic wall portion has freedom to take up different shapes in its closed position and thus be capable of surrounding any solid object that may have been left in the valve passageway, and
  • a valving arrangement according to claim 7 wherein said elastic wall portion and said rigid wall portion define between them a flow passage when said elastic wall portion is moved to said second position, said How passage being smaller in size than the cross sectional area of the pipe on the outlet side of said elastic wall portion so that when said elastic wall portion is in said second position, any air passing therethrough will be subjected to a drop in pressure which will in turn cause the elastic wall portion to close toward its said first position.
  • a controlled discharge water closet arrangement comprising: v
  • lifting means operatively coupled to said elastic 'wall portion for moving said elastic wall portion (1) from a first position wherein the elastic wall portion contracts said rigid wall portion so as to restrict liquid flow from said water closet bowl, to
  • said lifting means being responsive to a pressure differential

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Check Valves (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
US439310A 1964-03-16 1965-03-12 Discharge valve,particularly for water closets Expired - Lifetime US3482267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE323764 1964-03-16

Publications (1)

Publication Number Publication Date
US3482267A true US3482267A (en) 1969-12-09

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Application Number Title Priority Date Filing Date
US439310A Expired - Lifetime US3482267A (en) 1964-03-16 1965-03-12 Discharge valve,particularly for water closets

Country Status (9)

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US (1) US3482267A (es)
DE (1) DE1609245B1 (es)
DK (1) DK112090B (es)
ES (1) ES310546A1 (es)
FI (1) FI49204C (es)
FR (1) FR1426703A (es)
GB (1) GB1106961A (es)
IL (1) IL23141A (es)
NL (1) NL144700B (es)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703213A (en) * 1970-10-21 1972-11-21 Baker Oil Tools Inc Mud saver apparatus
US3746032A (en) * 1970-08-20 1973-07-17 Electrolux Ab Pneumatic liquid disposal system
US3791617A (en) * 1971-07-14 1974-02-12 Resistoflex Corp Positive opening and closing constrictable tube valve with means for prolonging tube life
US3811649A (en) * 1972-07-20 1974-05-21 Resistoflex Corp Constrictable tube valve with plural wall tube
US3984080A (en) * 1973-11-12 1976-10-05 Oy Wartsila Ab Vacuum sewer valve
FR2461646A1 (fr) * 1979-07-18 1981-02-06 Rogerson Aircraft Controls Chasse d'eau a depression pour des toilettes d'aeronef
US4275470A (en) * 1979-07-18 1981-06-30 Rogerson Aircraft Controls Vacuum-flush toilet arrangement for aircraft
US4297751A (en) * 1978-08-25 1981-11-03 Oy Wartsila Ab Sewer system
US4357719A (en) * 1979-08-20 1982-11-09 Rogerson Aircraft Controls Non recirculating method of disposing of waste products for aircrafts
US4376444A (en) * 1979-08-28 1983-03-15 Electrolux Gmbh Vacuum operated check valve for vacuum conduits
US4376315A (en) * 1979-08-20 1983-03-15 Rogerson Aircraft Controls Vacuum flush valve
US4511117A (en) * 1982-12-15 1985-04-16 Aktiebolaget Electrolux Activating apparatus in a liquid conveying system operated by vacuum, preferably a so-called vacuum sewage system
US4713847A (en) * 1987-02-02 1987-12-22 Oy Wartsila Ab Vacuum toilet system
US4783859A (en) * 1985-09-24 1988-11-15 Monogram Industries, Inc. Aircraft toilet flush valve
US4798324A (en) * 1986-08-05 1989-01-17 Fgl Projects Limited Valve and containers incorporating the same
US4928326A (en) * 1987-04-06 1990-05-29 Oy Wartsila Ab Vacuum sewer arrangement
US4950394A (en) * 1988-02-19 1990-08-21 Ieg Industrie-Engineering Gmbh Arrangement for driving out volatile impurities from ground water
US5657495A (en) * 1993-01-27 1997-08-19 Dufresne; Guy trap-forming device and toilet bowl provided with such a device
US5813061A (en) * 1993-12-20 1998-09-29 Evac Ab Air pressure driven vacuum sewer system
US5873135A (en) * 1994-12-16 1999-02-23 Evac Ab Air pressure driven vacuum sewer system
US20090121166A1 (en) * 2005-04-06 2009-05-14 Hans Christian Gabelgaard Flexible valve
CN101349070B (zh) * 2008-06-05 2010-06-02 浙江真创机电科技有限公司 真空排泄阀
US20130318701A1 (en) * 2012-06-05 2013-12-05 Thomas J. Stapleton Urine stowage system for spacecraft
US20160356203A1 (en) * 2010-04-27 2016-12-08 Nippon Thermostat Co., Ltd. Fluid control valve assembly
CN110159788A (zh) * 2018-02-10 2019-08-23 李卓 一种冲洗阀
WO2019232583A1 (en) * 2018-06-07 2019-12-12 Minetek Investments Pty Ltd Valve and duct arrangement including a valve
EP4382782A3 (de) * 2022-12-07 2024-09-04 AKO Armaturen & Separationstechnik GmbH Quetschventil sowie verfahren zur herstellung eines quetschventils

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652878C3 (de) * 1976-11-20 1980-06-12 Electrolux Gmbh, 2000 Hamburg Membran-Absperrventil fur Unterdruckleitungen
DE2748598A1 (de) * 1977-10-29 1979-05-03 Alfons Tschritter Foerder Und Unterdruck-steuerventileinrichtung
DE3202310A1 (de) * 1982-01-26 1983-07-28 Passavant-Werke AG & Co KG, 6209 Aarbergen Vorrichtung zum betaetigen eines druckmittelbetaetigten absperrorgans in einer abwasserleitung
FR2598197B1 (fr) * 1986-04-30 1988-09-09 Raymond Comolet Valve a passage direct.
DE3823515A1 (de) * 1988-05-10 1989-11-23 Harald Michael Steuervorrichtung fuer ein durch unterdruck betaetigbares absaugventil an einer vakuumleitung, insbesondere fuer abwasser

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083943A (en) * 1959-07-06 1963-04-02 Anbrey P Stewart Jr Diaphragm-type valve
US3100002A (en) * 1960-09-19 1963-08-06 Jesse C Moore Valve structure
US3350053A (en) * 1963-02-05 1967-10-31 Honeywell Inc Controlling apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE440782C (de) * 1927-02-14 Arthur Schroer Zapfventil fuer Wasserleitungen
GB698188A (en) * 1950-11-16 1953-10-07 Scotts Engineering Newport Ltd Improvements in or relating to stop valves
US2895505A (en) * 1954-08-31 1959-07-21 Western Electric Co Pressure valve and control system for paper pulp machines
BE570282A (es) * 1957-08-16
GB932736A (en) * 1959-02-21 1963-07-31 Fisher & Ludlow Ltd New or improved liquid flow control pinch cock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083943A (en) * 1959-07-06 1963-04-02 Anbrey P Stewart Jr Diaphragm-type valve
US3100002A (en) * 1960-09-19 1963-08-06 Jesse C Moore Valve structure
US3350053A (en) * 1963-02-05 1967-10-31 Honeywell Inc Controlling apparatus

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746032A (en) * 1970-08-20 1973-07-17 Electrolux Ab Pneumatic liquid disposal system
US3703213A (en) * 1970-10-21 1972-11-21 Baker Oil Tools Inc Mud saver apparatus
US3791617A (en) * 1971-07-14 1974-02-12 Resistoflex Corp Positive opening and closing constrictable tube valve with means for prolonging tube life
US3811649A (en) * 1972-07-20 1974-05-21 Resistoflex Corp Constrictable tube valve with plural wall tube
US3984080A (en) * 1973-11-12 1976-10-05 Oy Wartsila Ab Vacuum sewer valve
US4297751A (en) * 1978-08-25 1981-11-03 Oy Wartsila Ab Sewer system
FR2461646A1 (fr) * 1979-07-18 1981-02-06 Rogerson Aircraft Controls Chasse d'eau a depression pour des toilettes d'aeronef
US4275470A (en) * 1979-07-18 1981-06-30 Rogerson Aircraft Controls Vacuum-flush toilet arrangement for aircraft
US4357719A (en) * 1979-08-20 1982-11-09 Rogerson Aircraft Controls Non recirculating method of disposing of waste products for aircrafts
US4376315A (en) * 1979-08-20 1983-03-15 Rogerson Aircraft Controls Vacuum flush valve
US4376444A (en) * 1979-08-28 1983-03-15 Electrolux Gmbh Vacuum operated check valve for vacuum conduits
US4511117A (en) * 1982-12-15 1985-04-16 Aktiebolaget Electrolux Activating apparatus in a liquid conveying system operated by vacuum, preferably a so-called vacuum sewage system
US4783859A (en) * 1985-09-24 1988-11-15 Monogram Industries, Inc. Aircraft toilet flush valve
US4798324A (en) * 1986-08-05 1989-01-17 Fgl Projects Limited Valve and containers incorporating the same
US4713847A (en) * 1987-02-02 1987-12-22 Oy Wartsila Ab Vacuum toilet system
US4928326A (en) * 1987-04-06 1990-05-29 Oy Wartsila Ab Vacuum sewer arrangement
DE3811162C2 (de) * 1987-04-06 2001-03-08 Waertsilae Oy Ab Mit Unterdruck arbeitende Abwasseranordnung
US4950394A (en) * 1988-02-19 1990-08-21 Ieg Industrie-Engineering Gmbh Arrangement for driving out volatile impurities from ground water
US5657495A (en) * 1993-01-27 1997-08-19 Dufresne; Guy trap-forming device and toilet bowl provided with such a device
US5813061A (en) * 1993-12-20 1998-09-29 Evac Ab Air pressure driven vacuum sewer system
US5873135A (en) * 1994-12-16 1999-02-23 Evac Ab Air pressure driven vacuum sewer system
US20090121166A1 (en) * 2005-04-06 2009-05-14 Hans Christian Gabelgaard Flexible valve
US8585006B2 (en) * 2005-04-06 2013-11-19 Semvac A/S Flexible valve
CN101349070B (zh) * 2008-06-05 2010-06-02 浙江真创机电科技有限公司 真空排泄阀
US20160356203A1 (en) * 2010-04-27 2016-12-08 Nippon Thermostat Co., Ltd. Fluid control valve assembly
US10364736B2 (en) * 2010-04-27 2019-07-30 Nippon Thermostat Co., Ltd. Fluid control valve assembly
US20130318701A1 (en) * 2012-06-05 2013-12-05 Thomas J. Stapleton Urine stowage system for spacecraft
US10173793B2 (en) 2012-06-05 2019-01-08 Hamilton Sundstrand Space Systems International, Inc. Urine stowage system for spacecraft
US9352857B2 (en) * 2012-06-05 2016-05-31 Hamilton Sundstrand Space Systems International, Inc. Urine stowage system for spacecraft
US10994869B2 (en) 2012-06-05 2021-05-04 Hamilton Sundstrand Corporation Urine stowage system for spacecraft
CN110159788A (zh) * 2018-02-10 2019-08-23 李卓 一种冲洗阀
WO2019232583A1 (en) * 2018-06-07 2019-12-12 Minetek Investments Pty Ltd Valve and duct arrangement including a valve
EP4382782A3 (de) * 2022-12-07 2024-09-04 AKO Armaturen & Separationstechnik GmbH Quetschventil sowie verfahren zur herstellung eines quetschventils

Also Published As

Publication number Publication date
ES310546A1 (es) 1965-12-01
IL23141A (en) 1968-09-26
NL144700B (nl) 1975-01-15
DK112090B (da) 1968-11-04
DE1609245B1 (de) 1971-09-09
FI49204C (fi) 1975-04-10
FR1426703A (fr) 1966-01-28
FI49204B (es) 1974-12-31
NL6503290A (es) 1965-09-17
GB1106961A (en) 1968-03-20

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