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Publication numberUS2683499 A
Publication typeGrant
Publication dateJul 13, 1954
Filing dateFeb 26, 1949
Priority dateFeb 26, 1949
Publication numberUS 2683499 A, US 2683499A, US-A-2683499, US2683499 A, US2683499A
InventorsDe Croes Leon C
Original AssigneeDe Croes Leon C
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Drain-controlling device
US 2683499 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Patentecl July 13, 1954 1 TED STATES TNT OFFICE 3 Claims.

This invention relates to a device for controlling back-flow through a sewer drain.

In some locations, it frequently happens that sewer facilities are of insufficient capacity to meet peak requirements, and water will back up from the sewer through drains such as the basement drains of houses.

It is the object of my invention to provide a device which will control such back-flow and prevent access of the back-flowing liquid to the basement, and which will do so without imposing any back pressure tending to damage or cause leaks from the drain piping. A further object of my invention is to provide such a device which may be applied to and supported by the drain easily and without the necessity for any special tools.

In accordance with my invention, I provide an open extension which may be readily sealed to the drain opening and which extends upwardly therefrom a reasonable distance above any expected rise in sewage water level, so that the water backing up through the drain simply rises in such extension without escaping into the basement. For applying the extension to the drain and sealing it thereto I provide a hollow elastic plug adapted to fit within the drain opening and I provide means accessible from above the drain to compress such plug axially and cause it to expand radially into sealing engagement with the walls of the drain opening.

The accompanying drawing illustrates my invention: In such drawing, Fig. l is a vertical section through a device embodying my invention, shown in place in a drain opening; and Fig. 2 is a horizontal section on the line 2-2 of Fig. 1, and Fig. 3 is a section similar to Fig. 2 showing a modification.

The drain shown in the drawing comprises a catch basin It set in a floor I I and having a drain pipe I2 extending downward from adjacent the bottom thereof. Such drain is typical of standard construction, and it is to be noted that the top of the drain pipe I2 is spaced below the top level of the floor I I.

To prevent the escape of back-flow water from such a drain, I place in the open drain pipe I2 a vertical pipe I5, of a length to extend above the normal expected level of any back flowing sewage water. The lower end of this pipe I5 is threaded over a considerable portion, and that threaded portion carries a top nut I6, a compression washer il, a rubber plug I8, which may be made as a stack of rubber washers, a bottom compression washer I9, and a bottom nut 20. The normal diameter of the plug I8 i adapted to slip easily into the drain pipe I2.

The top nut I6 carries an upwardly extending operating shank 2|, of ample length to stand above the top level of the floor I I where it is easily accessible above the catch basin Ill. Preferably, I fix on the top of the shank 2| a laterally extending handle 22. A cooperating handle may be fixed on the pipe I5, but ordinarily this is not necessary. Alternatively, the shank 2| may be of hexagonal cross section to receive a wrench.

The drain I!lI2 is ordinarily left open, and used in the normal manner. When, however, there is any evidence that water is backing up through the drain or is likely to do so, my device is inserted in the pipe I2. This is a very simple operation, and requires merely that the device be inserted with the rubber plug I8 in position within the pipe I2, and that the nut I6 be tightened down against the rubber plug a few turns to expand that plug I3 into engagement with the walls of the pipe I2. But little force is required in this tightening, and it can ordinarily be accomplished without any special tools. The operating shank 2| permits the tightening to be done above the floor level, without any necessity to reach down into the catch basin. The engagement of the plug with the pipe I2 need only be sufficient to support the device in position, for little pressure will be exerted tending to cause any leakage around the plug I8 or to expel the fitting from the pipe I2. As the water backs up, it simply rises in the pipe I5 to its natural level, without escaping into the basement, and so long as the top of the pipe I5 is above the liquid level the back flow will be confined to the pipe I5 and will not escape therefrom.

I claim as my invention:

1. A device for controlling back-flow through a drain, comprising an upstanding open pipe adapted to be received in the drain opening and to be supported thereby, the lower end of said pipe being threaded, a compression Washer fixed on said pipe, a nut received on the threaded portion of said pipe, and elastic plug surrounding said pipe between said washer and nut and expansible by operation of the nut, and an operating shank extending upward from the nut to an accessible position above the drain opening.

2. A device a set forth in claim 1 with the addition of a handle carried by said operating shank at its accessible position.

3. A device for controlling back-flow through a drain opening, comprising an open pipe adapted to extend above the drain, an outwardly-extending plug support on the pipe adjacent the lower end thereof and adapted to be received through the drain opening, a packing plug supported by said support in sealed relation about said pipe, a sleeve surrounding said pipe above said plug, operating means on said sleeve at a point spaced a substantial distance upward from its lower end, and cooperating mechanical means between said pipe and sleeve and operative upon manual movement of the sleeve to force said sleeve toward the plug on said support to stress said plug and deform it into sealing engagement with the wall of said drain.

References Cited in the file of this patent UNITED STATES PATENTS Name Date Number 10 Number Name Date Wentz May 22, 1923 Sievers June 5, 1923 Cuthbertson May 20, 1924 Baldare June 12, 1934 Van der Horst Nov. 27, 1934 Modlin Aug. 16, 1949 FOREIGN PATENTS Country Date Germany June 1, 1927

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1037792 *Mar 14, 1912Sep 3, 1912Michal MorawieckiBottle closure or stopper.
US1455978 *Dec 22, 1921May 22, 1923Wentz Jere LStopper
US1457637 *Sep 11, 1922Jun 5, 1923Sievers William ODevice for conducting surface water to drain tiles
US1495000 *May 23, 1922May 20, 1924Cuthbertson John SClosure for receptacles
US1962978 *Aug 25, 1933Jun 12, 1934Angelo BaldareBasement drain
US1982555 *Mar 5, 1934Nov 27, 1934Der Horst Henry VanPlumbing fixture
US2478976 *May 22, 1947Aug 16, 1949Chester ModlinBackwater controlling device
DE445019C *Jun 1, 1927Ludwig MillenGegen Rueckstauwasser abschliessbarer Geruchverschluss fuer Spuel- und Ausgussbecken
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2793784 *Feb 7, 1956May 28, 1957Griscom Russell CoTest plug for pressure vessels
US2891575 *Jul 21, 1954Jun 23, 1959Moeller Mfg Co IncCombination sewer plug stopper and standpipe
US2944265 *Mar 10, 1958Jul 12, 1960Bruce CarmichaelCollapsible sink stopper structure
US3058760 *Jun 23, 1959Oct 16, 1962Bankowski Joseph TPipe coupling having radially expansible gripping means
US3847392 *Nov 8, 1972Nov 12, 1974Cv Ind IncAdjustable drop or riser nipple
US4188675 *Jun 30, 1978Feb 19, 1980Kaiser Aerospace & Electronics CorporationConduit plug
US4852609 *Nov 3, 1988Aug 1, 1989Anton SchoenauerSump pump adaptor
US5074380 *Mar 7, 1990Dec 24, 1991K. J. Manufacturing Co.Method and apparatus for changing oil in an internal combustion engine
US5263445 *Jun 13, 1991Nov 23, 1993K.J. Manufacturing Co.Apparatus and method for changing oil in an internal combustion engine and simultaneously determining engine oil consumption and wear
US5452695 *Oct 27, 1993Sep 26, 1995K. J. Manufacturing Co.Apparatus and method for changing oil in an internal combustion engine at a location adjacent to an engine oil filter unit
US5771507 *Apr 29, 1997Jun 30, 1998New Pig CorporationExtendible drain closure device
US5957170 *Nov 12, 1997Sep 28, 1999K. J. Manufacturing Co.Apparatus and method for changing oil in an internal combustion engine and simultaneously determining engine oil consumption and wear
US5964256 *Aug 19, 1993Oct 12, 1999K.J. ManufacturingApparatus and method for changing oil in an internal combustion engine and simultaneously determining engine oil consumption and wear
US7942455 *Feb 3, 2004May 17, 2011Vesuvius Crucible CompanyDevice for connecting a fluid circulating line to a refractory element and refractory element
U.S. Classification137/593, 4/295, 285/338
International ClassificationE03F5/04, E03F5/042
Cooperative ClassificationE03F5/042
European ClassificationE03F5/042