US3654953A - Valve means for controlling discharge of waste liquid into pneumatic sewage disposal system - Google Patents

Valve means for controlling discharge of waste liquid into pneumatic sewage disposal system Download PDF

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Publication number
US3654953A
US3654953A US88539A US3654953DA US3654953A US 3654953 A US3654953 A US 3654953A US 88539 A US88539 A US 88539A US 3654953D A US3654953D A US 3654953DA US 3654953 A US3654953 A US 3654953A
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US
United States
Prior art keywords
valve
conduit
waste liquid
drain conduit
closed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US88539A
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English (en)
Inventor
Manfred Otto Hagdorn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wartsila Oy AB
Electrolux AB
Original Assignee
Electrolux AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux AB filed Critical Electrolux AB
Application granted granted Critical
Publication of US3654953A publication Critical patent/US3654953A/en
Assigned to OY WARTSILA AB reassignment OY WARTSILA AB ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AKTIEBOLAGET ELECTROLUX A SWEDEN CORP
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7313—Control of outflow from tank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7339—By weight of accumulated fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7769—Single acting fluid servo
    • Y10T137/777—Spring biased

Definitions

  • the partial vacuum prevailing in the sewage system is extended upstream to the zone ahead of the main valve in which ambient air at atmospheric pressure is present. This is objectionable because the partial vacuum for the sewage system at the downstream side of the main valve can be reduced to such an extent that it will be ineffective to suck out waste liquid from the upstream side of the main valve.
  • My invention relates to controlling the discharge of waste liquid from places in kitchens and laundries and fixtures in bathrooms like bathtubs and wash basins, for example, into a pneumatic sewage disposal system and has for its object the provision of improved valve means that includes a normally closed main valve that moves from its closed position toward its open position and back to its closed position responsive to increase and decrease, respectively, in the hydrostatic pressure of waste liquid in the conduit into which such liquid drains.
  • the main valve operating means is connected to a region of tion responsive to or partly increase in the hydrostatic pressure of waste liquid in the drain conduit.
  • the control valve moves from its closed position responsive to increase in the hydrostatic pressure of waste liquid in the drain conduit.
  • the main valve moves from its closed position responsive to the position of the control valve which in turn determines the ability of the partial vacuum to influence the position the main valve will assume. Since the main valve moves from its normal closed position to its fully open position and back to its closed position with changes in the hydrostatic pressure of waste liquid in the drain conduit, the main valve will operate silently and without noise.
  • FIGURE is a vertical sectional view more or less diagrammatically illustrating valve means and pneumatic operating mechanism therefor which embodies my invention for controlling the discharge of waste liquid into a pneumatic sewage disposal system responsive to the hydrostatic pressure of such waste liquid flowing into a drain conduit from a place having an outlet.
  • a valve 15 is operatively associated with the discharge conduit 14 for controlling flow of waste liquid thereto from the drain conduit 10.
  • the valve 15 comprises a valve member or blade which functions to control flow of waste liquid from the place 12 to the pneumatic sewage disposal system and is movable between a fully open position and a closed position at the inlet end of the discharge conduit 14, as illustrated in the drawing.
  • the valve member 15 is fixed to a piston 16 movable within a casing 17 and is biased to its normally closed position by a compression spring 18.
  • the casing 17 is provided with an opening 19 for bleeding ambient air therein to promote movement of the valve blade 16 from an open position to its closed position, as will be explained presently.
  • the casing 17 and movable piston 16 therein and spring 18 constitute means 20 for operating the valve member 15.
  • the casing 17 is connected by a conduit section 21a, a control valve 22 and a conduit section 21b to a region 23 which is at a partial vacuum and downstream from the valve member 15.
  • the control valve 22 comprises a hollow casing 24 formed to provide a seat 25 for a valve member 26.
  • the valve member 26 is movable toward and from its seat 25 and is biased to its closed position by a spring 27.
  • valve 15 when the valve member 26 of the control valve 22 is closed and positioned against its seat 25, the valve 15 no longer will be in communication with the region 23 at a partial vacuum and the spring 18 will be effective to urge the valve member 15 to its closed position.
  • Such upward movement of the valve member 15 will be promoted by ambient air at atmospheric pressure which bleeds into the casing 17 through the small opening 19 in the valve operating means 20.
  • I provide pressure sensing means 28 for regulating the valve operating means 20, the sensing means being influenced by a pressure condition affected by the hydrostatic pressure of waste liquid in the drain conduit 10.
  • the sensing means 28 is upstream from the valve 15 and comprises a flexible diaphragm fixed in the wall of the drain conduit 10 which is responsive to increase and decrease, respectively, in the hydrostatic pressure of waste liquid in the drain conduit 10.
  • the diaphragm 28 desirably can be formed of elastomeric material like rubber or a suitable plastic like Teflon, for example.
  • the diaphragm 28 is operatively connected to the valve member 26 of control valve 22 by an elongated member 29 so that the valve member 26 will assume any position between and including its fully open and closed positions depending upon the pressure condition to which the diaphragm 28 is subjected.
  • valve member 15 coupled in the discharge conduit 14 and the valve member 26 of the control valve 22 are both illustrated in their closed positions. These are the normal positions of the valve members 17 and 26 when no waste liquid is flowing from the place 12 into the pneumatic sewage system. Under these conditions the liquid surface level of the column of liquid in the drain conduit 10 is at A and the diaphragm 28 is subject to a hydrostatic pressure which is insufficient to move the valve member 26 from its closed position at the seat 25. With the valve member 26 closed the valve operating means 20 is disconnected from the region 23 at a partial vacuum and the spring 18 will be effective to urge the valve member 15 to its closed position.
  • the liquid surface level at A will rise.
  • the hydrostatic pressure at the region of the diaphragm 28 will be sufficient for the latter to impart movement to the elongated member 29 to effect opening of the valve member 26.
  • the extent to which the valve member 26 opens will be dependent upon the rate at which waste liquid flows from the place 12 into the drain conduit 10. Stated another way, the valve member 26 will open by degrees when waste liquid commences to flow into the drain conduit; and, if only a relatively small quantity of waste liquid is introduced into the drain conduit, the valve member 26 will move to a partially open position which can be rather small.
  • valve operating means 20 will now be in communication with the region 23 at a partial vacuum. This will effect downward movement of the piston 16 and the valve member 15 fixed thereto. It will be understood that, since the valve member 26 is in a partially open position which is relatively small, the valve member 15 also will be in a partially open position that is small and dependent upon the extent that valve member 26 is open. In the event a large quantity of waste liquid now flows from the place 12 into the drain conduit 10, and the hydrostatic pressure at the region of the diaphragm 28 is sufficient, the valve member 26 very well can move to its wide open position which will render the valve operating means 20 operable to move valve member 15 in turn to its wide open position.
  • valve member 26 and diaphragm 28 will return to their original positions which means that the valve member 26 will be in its closed position and the hydrostatic pressure acting on the diaphragm will be ineffective to move the valve member 26 from its closed position.
  • the valve operating'means 20 now is disconnected from the region 23 at a partial vacuum and the spring 18 will be operable to urge the valve member 15 to its closed position, as explained above, with the aid of ambient air at atmospheric pressure which flows into the casing 17 through the small opening 19.
  • valve member 15 In view of the fact that the valve member 15 is moved gradually from its normal closed position to its wide open position and back to its closed position with increase and decrease, respectively, in the hydrostatic pressure of waste liquid in the drain conduit 10, the valve 15 will operate silently and without noise. There never is any danger that the valve member 15 will move to its full open position when a relatively small quantity of waste liquid flows into the drain conduit from the place 12. And the valve member will always move to its closed position before the liquid surface level of the column of waste liquid in the drain conduit 10 falls below a predetermined level which, in the embodiment illustrated and described above, is the level indicated at A.
  • the opening 19 in the casing 17 is of such size that the ambient air passing into the casing will promote upward movement of the piston 16 at the desired rate to close the valve member 15 when the control valve 22 closes. Further, the opening 19 may be positioned anywhere in the conduit section 21a between the casing 17 and the seat 25 for the valve member 26 of the control valve 22.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • structure comprising a valve which is movable between closed and open positions and coupled in said discharge conduit for controlling flow of waste liquid from said drain conduit to said discharge conduit,
  • g. means regulating said last-mentioned valve moving means to effect movement of said valve from its closed position toward its fully open position and back to its closed position responsive to increase and decrease, respectively, in the hydrostatic pressure of waste liquid in said drain con- 5 5 duit.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • structure comprising a valve which is movable between closed and open positions and coupled in said discharge conduit for controlling flow of waste liquid. from said drain conduit to said discharge conduit,
  • f. means moving said normally closed valve from its closed position toward its fully open position responsive to increase in the hydrostatic pressure of waste liquid in said drain conduit.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • c. structure comprising a first valve which is movable between closed and open positions and coupled in said discharge conduit for controlling flow of waste liquid from said drain conduit to said discharge conduit,
  • said pressure sensing means being operatively connected to said second valve to effect movement thereof between its fully open and closed positions responsive to the hydrostatic pressure to which said pressure sensing means is subjected.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • c. structure comprising a first valve which is movable between closed and open positions and coupled in said discharge conduit for controlling flow of waste liquid from said drain conduit to said discharge conduit, said first valve normally being closed,
  • means operative to cause said normally closed first valve to move to an open position responsive to a partial vacuum, said last-mentioned means including conduit means connected to a region of said discharge conduit downstream from said first valve,
  • pressure sensing means influenced by a pressure condition affected by the hydrostatic pressure of waste liquid in said drain conduit
  • said pressure sensing means being operatively connected to said second valve to effect movement thereof between its fully open and closed positions responsive to the pressure condition to which said pressure sensing means is subjected.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • c. structure comprising a valve which is movable between closed and open positions and coupled in said discharge conduit for controlling flow of waste liquid from said drain conduit to said discharge conduit,
  • g. means upstream from said valve responsive to increase in the hydrostatic pressure of waste liquid in said drain conduit operative to regulate said last-mentioned valve movinfilmeans to move said valve from its closed position.
  • a discharge conduit which is connected to said drain conduit and adapted to be maintained at a partial vacuum and through which waste liquid from said drain conduit is discharged into the sewage disposal system
  • structure comprising a first valve which is coupled in said discharge conduit for controlling flow of waste liquid from said drain conduit to said discharge conduit,
  • said pressure sensing means being operatively connected to said second valve to effect movement thereof between its fully open and closed positions responsive to the pressure condition to which said pressure sensing means is subjected.
  • conduit means responsive to partial vacuum is connected to a region of said discharge conduit downstream from said first valve.

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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)
  • Sewage (AREA)
  • Sink And Installation For Waste Water (AREA)
US88539A 1969-11-13 1970-11-12 Valve means for controlling discharge of waste liquid into pneumatic sewage disposal system Expired - Lifetime US3654953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15590/69A SE328532B (enrdf_load_stackoverflow) 1969-11-13 1969-11-13

Publications (1)

Publication Number Publication Date
US3654953A true US3654953A (en) 1972-04-11

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ID=20300896

Family Applications (1)

Application Number Title Priority Date Filing Date
US88539A Expired - Lifetime US3654953A (en) 1969-11-13 1970-11-12 Valve means for controlling discharge of waste liquid into pneumatic sewage disposal system

Country Status (3)

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US (1) US3654953A (enrdf_load_stackoverflow)
JP (1) JPS4935186B1 (enrdf_load_stackoverflow)
SE (1) SE328532B (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788338A (en) * 1971-06-29 1974-01-29 B Burns Vacuum sewage conveying with vacuum operated valve
US4057076A (en) * 1973-10-26 1977-11-08 Martti Varis Waste water valve
US4307475A (en) * 1978-02-15 1981-12-29 A-Dec, Inc. Vacuum cuspidor
US4467826A (en) * 1980-02-29 1984-08-28 Alfons Haar Maschinenbau Gmbh Device for preventing the co-measuring of gaseous admixtures in the dispensing of liquids
US4535914A (en) * 1984-02-21 1985-08-20 Coty Raymond J A Automatic larvicide dispenser
US4603709A (en) * 1984-02-10 1986-08-05 Oy Wartsila Ab Device in a vacuum transportation system for liquids, preferably a vacuum sewage system
US4621379A (en) * 1984-01-11 1986-11-11 Oy Wartsila Ab Flushing operating means for vacuum toilet
WO2002077505A1 (es) * 2001-02-16 2002-10-03 Madrigal Chavarria, Ana Lidieth Dispositivo automatico-manual para controlar la salida de agua y cualquier fluido; de funcionamiento mecanico y facil instalacion
US20130028668A1 (en) * 2010-02-18 2013-01-31 Maricap Oy Method and apparatus in a pneumatic material conveying system
US10578098B2 (en) 2005-07-13 2020-03-03 Baxter International Inc. Medical fluid delivery device actuated via motive fluid
US11478578B2 (en) 2012-06-08 2022-10-25 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH048313U (enrdf_load_stackoverflow) * 1990-05-11 1992-01-24

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US482439A (en) * 1892-09-13 liernur
US2941376A (en) * 1956-10-17 1960-06-21 Messerli Walter Devices for the controlled dispensation of a liquefied gas from a pressure container
US3115148A (en) * 1958-05-28 1963-12-24 Liijendahl Sven Algot Joel Sewerage systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US482439A (en) * 1892-09-13 liernur
US2941376A (en) * 1956-10-17 1960-06-21 Messerli Walter Devices for the controlled dispensation of a liquefied gas from a pressure container
US3115148A (en) * 1958-05-28 1963-12-24 Liijendahl Sven Algot Joel Sewerage systems

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788338A (en) * 1971-06-29 1974-01-29 B Burns Vacuum sewage conveying with vacuum operated valve
US4057076A (en) * 1973-10-26 1977-11-08 Martti Varis Waste water valve
US4307475A (en) * 1978-02-15 1981-12-29 A-Dec, Inc. Vacuum cuspidor
US4467826A (en) * 1980-02-29 1984-08-28 Alfons Haar Maschinenbau Gmbh Device for preventing the co-measuring of gaseous admixtures in the dispensing of liquids
US4621379A (en) * 1984-01-11 1986-11-11 Oy Wartsila Ab Flushing operating means for vacuum toilet
US4603709A (en) * 1984-02-10 1986-08-05 Oy Wartsila Ab Device in a vacuum transportation system for liquids, preferably a vacuum sewage system
US4535914A (en) * 1984-02-21 1985-08-20 Coty Raymond J A Automatic larvicide dispenser
US20040050424A1 (en) * 2001-02-16 2004-03-18 Sosa Rafael H.T. Easy-to-install, mechanically-operated automatic/manual device for controlling an outlet for water or any fluid
WO2002077505A1 (es) * 2001-02-16 2002-10-03 Madrigal Chavarria, Ana Lidieth Dispositivo automatico-manual para controlar la salida de agua y cualquier fluido; de funcionamiento mecanico y facil instalacion
US6994107B2 (en) 2001-02-16 2006-02-07 Ana Lidieth Madrigal Chavarria Easy-to-install, mechanically-operated automatic/manual device for controlling an outlet for water or any fluid
US10578098B2 (en) 2005-07-13 2020-03-03 Baxter International Inc. Medical fluid delivery device actuated via motive fluid
US10590924B2 (en) 2005-07-13 2020-03-17 Baxter International Inc. Medical fluid pumping system including pump and machine chassis mounting regime
US10670005B2 (en) 2005-07-13 2020-06-02 Baxter International Inc. Diaphragm pumps and pumping systems
US11384748B2 (en) 2005-07-13 2022-07-12 Baxter International Inc. Blood treatment system having pulsatile blood intake
US12392335B2 (en) 2005-07-13 2025-08-19 Baxter International Inc. Medical fluid pumping system having backflow prevention
US20130028668A1 (en) * 2010-02-18 2013-01-31 Maricap Oy Method and apparatus in a pneumatic material conveying system
US11478578B2 (en) 2012-06-08 2022-10-25 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods

Also Published As

Publication number Publication date
SE328532B (enrdf_load_stackoverflow) 1970-09-14
JPS4935186B1 (enrdf_load_stackoverflow) 1974-09-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: OY WARTSILA AB, JOHN STENBERGS STRAND 2, P.O. BOX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AKTIEBOLAGET ELECTROLUX A SWEDEN CORP;REEL/FRAME:004460/0355

Effective date: 19850801