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US3478882A - Anti-backflow drainage system - Google Patents

Anti-backflow drainage system Download PDF

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Publication number
US3478882A
US3478882A US701978A US3478882DA US3478882A US 3478882 A US3478882 A US 3478882A US 701978 A US701978 A US 701978A US 3478882D A US3478882D A US 3478882DA US 3478882 A US3478882 A US 3478882A
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US
United States
Prior art keywords
water
ball
vessel
receptacle
compartment
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
US701978A
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English (en)
Inventor
Arno Hornemann
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.)
Individual
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3478882A publication Critical patent/US3478882A/en
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
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/042—Arrangements of means against overflow of water, backing-up from the drain

Definitions

  • My present invention relates to a drainage system having means for preventing backflow from a sewer, cesspool or other waste-disposal installation to which the system is permanently connected.
  • the principal object of my invention is to provide an installation of the general character described which effectively seals the drain at all times against odor and back-flow from the waste-disposal system without substantially impeding the discharge of accumulating water.
  • a more specific object of this invention is to provide means in such installation for keeping sand and other solids from being entrained into the trap.
  • I provide a receptacle to be mounted in the usual manner at the lowest point of a floor to be drained, this receptacle having a preferably removable cover with an apertured portion overlying an overflow compartment of the receptacle; the overflow compartment advantageously contains a pail serving as a trap for sand and other solids that may be swept into the receptacle through the grillwork or other drain apertures in the cover.
  • the overflow compartment communicates with an adjoining main chamber having an inlet near its top and an outlet at a lower level.
  • a first floating valve member preferably a ball, seals the inlet from within in the presence of appreciable water accumulation within the chamber, the outlet being normally sealed by a second valve member floating on a pool of water discharged into a recess of an adjoining drain pipe.
  • the first valve member is concurrently raised to close the inlet; in this way, no continuous flow path ever exists between the drain and the disposal system so that any backwash past the second check valve will be stopped by the first check valve.
  • FIG. 1 is a top view (partly broken away) of a drainage system according to the invention
  • FIG. 2 is a longitudinal sectional view taken on the line II-II of FIG. 1;
  • FIG. 3 is a cross-sectional view taken substantially on the line IIII1I of FIG. 1.
  • the system shown in the drawing comprises a receptacle I normally closed by a cover 6 which is partly formed with a grillwork for the passage of water to be drained from a floor 30 (FIG. 2).
  • a vertical partition 19 subdivides the interior of receptacle 1 into an overflow compartment 2 and a main chamber 3, the latter being formed by a vessel 8 resting with an upper flange 8' on partition 19; this partition has a multiplicity of frustoconical perforations diverging toward vessel 8.
  • the vessel has external flanges 21 by which it is secured, with the aid of screws 23, to an end wall 22 of receptacle 1, this wall being open toward and rigid with an adjoining discharge pipe 7 into which an extension 13 of vessel 8 projects.
  • Pipe 7 is recessed at 7' to collect a pool of water 31 on which a ball 17 floats to obstruct an outlet 10 in the underside of extension 13, this outlet being bounded by an annular lip 14 of soft rubber or similar resilient material.
  • One or more baflles 18 limit the mobility of ball 17 to the vicinity of outlet 10.
  • FIG. 1 Another such ball 16 floats on an accumulation of water 32 inside main chamber 3 and, upon a rise in the water level, is guided by baffles 18 toward an inlet 11 which is bounded by an annular sealing lip 12 of soft rubber or the like.
  • ring 14 which forms a slightly inclined valve seat for ball 17
  • ring 12 is horizontally disposed above the level of extension 13.
  • the open top of vessel 8 is overlain by a lid which is partly cut away at 25 to give access to the inlet mouth 12; this lid has a bulging central portion 26 forming a downwardly facing spherical concavity of substantially the same radius as ball 16 so as to accommodate the latter in its top position illustrated in dot-dash lines in FIG. 2.
  • Water overflowing the compartment 2 may pass through a gap 9 into the vessel 8 by way of the cutouts 25 of lid 25, the area of these cutouts being so restricted that the hydrostatic pressure of an expected water accumulation on floor 30 will be incapable of dislodging the ball 16 from its top position as long as the water in vessel 8 is prevented by a backup of liquid in pipe 7 from escaping through outlet 10.
  • a pail 4 is removably disposed in compartment 2 and serves as a trap for sand. and other solids dropped through the grate 5.
  • the pail may be extracted from vessel 8 by a handle 4' upon removal of cover 6 which for this purpose is provided with a hinged eye 34.
  • Pail 4 also has narrow slots 4" through which water can run out into compartment 2, the water then penetrating the perforations 20 and collecting in receptacle 1 around vessel 8 whose connection with the receptacle 1 is sealed by a packing ring 24 surrounding the extension 13.
  • outlet 10 of chamber 3 is normally closed by the ball 17 floating on the pool 31.
  • chamber inlet 11 will be open.
  • ball 17 will come to rest against its seat 12 but will be readily displaceable therefrom by further overflow from compartment 2 until the liquid volume in vessel 8 is suflicient to open the outlet 10 and to drain the vessel to its minimum level. If a tide of backflow from pipe 7 should occur while the ball 17 is out of position, the inrushing water would immediately urge the ball 16 more firmly against the sealing ring 12 which deforms, as indicated in dot-dash lines in FIG.
  • outlet seat 14 in a plane inclined at a small angle to the horizontal, in combination with the inversely sloping baffles 18 insures that the ball 17 is positively guided toward its seat while floating on the shallow pool of water 31 in the generally horizontal pipe 7.
  • the drainage installation according to my inven tion acts at all times as an effective odor trap and antibackflow device without the need for any manually operable valves or shutters.
  • the pail 4 will have to be emptied only at long intervals.
  • An anti-backflow drainage system comprising a receptacle for drain water; partition means dividing the interior of said receptacle into a main chamber and an adjoining overflow compartment open at the top, said vessel being provided with a cover which is apertured above said compartment for admitting drain water into same; inlet means forming a mouth near the top of said chamber for receiving water overflowing said compartment; a first valve member floatable in said chamber on water accumulated therein for sealing said mouth upon the accumulated water reaching a predetermined level; outlet means in said chamber forming a port substantially at said predetermined level for the discharge of water from said chamber; conduit means communicating with said port for receiving the discharged water, said conduit means having a recess to retain a pool of discharged water adjacent said port; and a second valve member fioatable on said pool for normally sealing said port from without.
  • conduit means comprises a generally horizontal pipe rigid with said receptacle, said chamber comprising a vessel seated in said receptacle and formed with an extension projecting into said pipe, said outlet means being disposed on said extension.
  • a system as defined in claim 2 wherein said partition means comprises a perforated wall adjacent said vessel.
  • a system as defined in claim 2 wherein said vessel is provided with external flanges, further comprising fastening means securing said vessel to said receptacle by said flanges.
  • said first valve member is a ball
  • said lid having a downwardly facing spherical concavity accommodating said ball in a raised position thereof, said inlet means including a flexible annular gasket allowing said ball to rise into contact with said concavity.
  • a system as defined in claim 1 further comprising a pail disposed in said compartment underneath the aper- Itured part of said cover and withdrawable from said vessel upon removal of said cover.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Revetment (AREA)
US701978A 1967-01-31 1968-01-31 Anti-backflow drainage system Expired - Lifetime US3478882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0061706 1967-01-31

Publications (1)

Publication Number Publication Date
US3478882A true US3478882A (en) 1969-11-18

Family

ID=7161518

Family Applications (1)

Application Number Title Priority Date Filing Date
US701978A Expired - Lifetime US3478882A (en) 1967-01-31 1968-01-31 Anti-backflow drainage system

Country Status (11)

Country Link
US (1) US3478882A (fr)
AT (1) AT299830B (fr)
BE (1) BE710130A (fr)
CH (1) CH474637A (fr)
DE (1) DE1658198B1 (fr)
ES (1) ES349760A1 (fr)
FR (1) FR1554150A (fr)
GB (1) GB1215873A (fr)
LU (1) LU55262A1 (fr)
NL (1) NL6800886A (fr)
SE (1) SE329817B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876001A (en) * 1986-04-04 1989-10-24 Liberty Pool Products S.A. Apparatus for use with a pool cleaner
US20100089838A1 (en) * 2007-03-04 2010-04-15 Soederstroem Gert Wilhelm Floor drain
US20110146817A1 (en) * 2008-06-06 2011-06-23 Odour Technologies Pty Ltd Wastewater valve arrangement
US20140109993A1 (en) * 2012-08-27 2014-04-24 Frank Kelly Gully arrangement

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522424C3 (de) * 1975-05-21 1979-10-04 Bernhard 8073 Koesching Kessel Bodenablauf
DE2942358C2 (de) * 1979-10-19 1982-02-04 Bernhard 8071 Lenting Kessel Sammelbehälter für Flüssigkeiten, insbesondere für Abwasser
DE3002180A1 (de) * 1980-01-22 1981-09-10 Passavant-Werke Michelbacher Hütte, 6209 Aarbergen Rueckstauverschluss fuer entwaesserungsleitungen
DE19621649B4 (de) * 1996-05-30 2006-07-27 Aco Severin Ahlmann Gmbh & Co. Kg Bodenablauf mit zwei in Rückstaurichtung nacheinander beaufschlagten Rückstauverschlußorganen
DE19904883A1 (de) * 1999-02-06 2000-08-10 Wisy Ag Haustechniksysteme Fil Überlauf mit einem Siphon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US486177A (en) * 1892-11-15 couzens
US2504474A (en) * 1948-03-31 1950-04-18 John Van Oss Valved catch basin for drains
US2796988A (en) * 1954-04-30 1957-06-25 Loffler Walther Valved catch basin
US2868380A (en) * 1957-06-20 1959-01-13 Vecchio Deno Del Apparatus for controlling backwater in sewage lines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1920695U (de) * 1964-12-19 1965-07-29 Paul Hoernemann Sinkkasten mit rueckstauverschluss.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US486177A (en) * 1892-11-15 couzens
US2504474A (en) * 1948-03-31 1950-04-18 John Van Oss Valved catch basin for drains
US2796988A (en) * 1954-04-30 1957-06-25 Loffler Walther Valved catch basin
US2868380A (en) * 1957-06-20 1959-01-13 Vecchio Deno Del Apparatus for controlling backwater in sewage lines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876001A (en) * 1986-04-04 1989-10-24 Liberty Pool Products S.A. Apparatus for use with a pool cleaner
US20100089838A1 (en) * 2007-03-04 2010-04-15 Soederstroem Gert Wilhelm Floor drain
US20110146817A1 (en) * 2008-06-06 2011-06-23 Odour Technologies Pty Ltd Wastewater valve arrangement
US8701695B2 (en) * 2008-06-06 2014-04-22 Odour Technologies Pty Ltd Wastewater valve arrangement
AU2009253848B2 (en) * 2008-06-06 2015-09-17 Odour Technologies Pty Ltd A wastewater valve arrangement
US20140109993A1 (en) * 2012-08-27 2014-04-24 Frank Kelly Gully arrangement
US9139997B2 (en) * 2012-08-27 2015-09-22 Bluewater Design Associates Limited Gully arrangement

Also Published As

Publication number Publication date
LU55262A1 (fr) 1968-03-28
FR1554150A (fr) 1969-01-17
NL6800886A (fr) 1968-08-01
GB1215873A (en) 1970-12-16
CH474637A (de) 1969-06-30
BE710130A (fr) 1968-05-30
DE1658198B1 (de) 1970-07-30
AT299830B (de) 1972-07-10
ES349760A1 (es) 1969-04-01
SE329817B (fr) 1970-10-19

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