US3071781A - Drain for plumbing - Google Patents

Description

Jan. 8, 1963 B. SEEWACK 3,071,781

DRAIN FOR PLUMBING Filed May 4, 1959 f iyl Bevan/110v SIE'WVGA;

INVENTOR. /aez/aidz -ssue y 477a2-15 United States Patent Ofitice 3,071,781 Patented Jan. 8, 1963 3,071,781 DRAIN FOR PLUMBING Benjamin Seewack, 2857 E. 11th St., Los Angeles 23, Calif. Filed May 4, 1959, Ser. No. 810,771 2 Claims. (Cl. 4286) This invention relates to drains, and particularly to drains for a Roman style bath tub.

In most localities, building ordinances require that the rough-in plumbing for Roman style bath tubs be generally of the same type as is used in connection with showers. This type fitting, however, is generally designed and adapted to receive a grating rather than a plug. It is accordingly an object of this invention to provide a drain of the shower type which may be stoppered to prevent drainage of water, thereby enabling the drain to be used in Roman style bath tubs.

It is a further object of this invention to provide a drain of the above type which is adapted to be applied to shower type rough plumbing without any reworking or modification of the rough plumbing.

In accordance with these and other objects which will become apparent hereinafter, a preferred form of the present invention will now be described with reference to the accompanying drawing wherein:

FIG. 1.is a cross-sectional elevation of a drain constructed in accordance with the present invention;

FIG. 2 is an exploded perspective view showing certain elements of the drain;

FIG- 3 is a fragmentary section on line 3-3 in FIG. 2; and

FIG. 4 is a fragmentary cross-section taken on line 33 in FIG. 1.

Referring to the drawing, 11 designates a cylindrical drain member firmly imbedded in a concrete base 12,

surfaced with tile 13 and forming the bottom of a Roman style tub. Extending inwardly from the cylinder 11 are -a pair of bosses 14 which are bored and threaded vertically, as shown at 16, to receive screws 17 which hold in place an annular ring 18. The ring 18 is made of corrosion-resistant metal, such as stainless steel, and the central portion adjacent the inner circumference of the ring is depressed as shown at 19. As seen in FIG. 3, the depressed inner portion 19 extends below the upper surface of the bosses 14, but recessed flats 21 are provided on the under side of the ring to accommodate the bosses.

The inner circumference 22 of the ring 18 is disposed within the bosses 14 and below the upper surface thereof. Immediately outward of the inner circumference 22, the upper surface of the ring 18 is depressed as shown at 23, and in this depressed portion are a pair of bores .24 aligned with the threaded or tapped bores 16 in the bosses 14. Through these bores 24 pass the securing screws 17, holding the ring 18 firmly down across the face of the cylindrical drain member 11.

The inner circumference 22 of the ring 18 is selectively stoppered by a plug means comprising, in the preferred embodiment, a cylindrical casing 26 which is seated within the inner circumference 22 and held in place by external threads 27 mating with internal threads formed on theinner circumference 22. Formed integral with the cylinder 26 is an outwardly extending annular flange 28 which overlies and nests within the depressed portion 23, a pliant gasket 29 being interposed between the flange 28 and the ring 18 in order to prevent leakage of water.

Water leakage between the outer circumference of the ring 18 and the tile 13 may be blocked by suitable caulking 31. The cylindrical casing 26 is selectively closed and opened by a cap means 32, from which depends a square guide rod 33, the upper end of which is threaded and passes through a central hole in the cap 32 to receive threaded thereover a knob 36 for lifting the cap 32 and opening the drain. The guide rod 33 slides back and forth in a square opening formed in the center of a spider 37, the tip end of the rod being provided with a circular groove 38 and terminated by a larger washer 39. Thus, when the assembly, including the cap 32, is lifted to its maximum extent, the guide rod 33 may be rotated through approximately so that the corners of the guide rod rest on the spider 37, holding the cap 32 upward and the drain open.

The under surface of the cap 32 is provided with a' pliant face 41 which seals against the upper edge of the casing 26 where it turns outwardly into the flange 28.

It will be seen that by means of the present invention the rough-in drain member 11, conventionally used to accommodate a shower grating, is readily adapted to accommodate a plug-type drain, such as is used in Roman tubs, without any alteration in the basic rough-in installation.

While the instant invention has been shown and described herein in what is conceived to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of the invention which is therefore not to be limited to the details disclosed herein but is to be afforded the full scop of the claims.

What is claimed is:

1. A drain particularly adapted for use in a Roman style tub comprising in combination: a generally cylindrical drain member having inwardly directed vertically bored and threaded boss means; an annular ring of corrosion resistant metal assembled in a position overlying the upper edges of said drain member and supported thereby, the inner circumference of said ring being substantially concentric with said cylindrical drain member and spaced within said boss means; bores in said ring aligned with said boss bores, and means attaching the ring to the said boss means; and plug means including a cylindrical casing having a central bore therethrough, said cylindrical casing extending downwardly within the inner circumference of said ring and threadedly secured in position therein, said plug means including a stopper plug movably mounted on said casing and closing the upper end of said bore.

2. A drain particularly adapted for use in a Roman 7 style tub comprising in combination: a generally cylindrical drain member having inwardly directed vertically bored and threaded boss means; an annular ring of corrosion resistant metal assembled in a position overlying the upper edges of said drain member and supported thereby,

References Cited in the file of this patent UNITED STATES PATENTS 930,845 Dawes Aug. 10, 1909 1,496,595 Pasman June 3, 1924 1,511,017 Binder Oct. 7, 1924 1,608,115 Niedecken Nov. 23, 1926 2,127,167 Fraters Aug. 16, 1938 2,765,865 Schmid Oct. 19, 1956

Claims (1)

1. A DRAIN PARTICULARLY ADAPTED FOR USE IN A ROMAN STYLE TUB COMPRISING IN COMBINATION: A GENERALLY CYLINDRICAL DRAIN MEMBER HAVING INWARDLY DIRECTED VERTICALLY BORED AND THREADED BOSS MEANS; AN ANNULAR RING OF CORROSION RESISTANT METAL ASSEMBLED IN A POSITION OVERLYING THE UPPER EDGES OF SAID DRAIN MEMBER AND SUPPORTED THEREBY, THE INNER CIRCUMFERENCE OF SAID RING BEING SUBSTANTIALLY CONCENTRIC WITH SAID CYLINDRICAL DRAIN MEMBER AND SPACED WITHIN SAID BOSS MEANS; BORES IN SAID RING ALIGNED WITH SAID BOSS BORES, AND MEANS ATTACHING THE RING TO THE SAID BOSS MEANS; AND PLUG MEANS INCLUDING A CYLINDRICAL CASING HAVING A CENTRAL BORE THERETHROUGH, SAID CYLINDRICAL CASING EXTENDING DOWNWARDLY WITHIN THE INNER CIRCUMFERENCE OF SAID RING AND THREADEDLY SECURED IN POSITION THEREIN, SAID PLUG MEANS INCLUDING A STOPPER PLUG MOVABLY MOUNTED ON SAID CASING AND CLOSING THE UPPER END OF SAID BORE.

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