US1699871A - Backwater floor drain - Google Patents

Description

Jan. 22, 1929.. 1,699,871

- E. W. N. BOOSEY BACK WATER FLOOR DRAIN Filed July 11, 1928 INVENTOR.

A TTORNEY.

Patented Jan. 22, 1929.

nnwann W. n. noosnr on DETROIT, nionrenn.

BAGKWATER FLOOR DRAIN.

I Application filed July 11,

This invention relates to backwater floor drains and the object of the invention to provide a floor drain which will stop water from backing up through the drain onto the floor oi the building in which the drain is installed. 1

Another object of the invention is to provide a floor drain which may be readily cleaned out and which is provided with an inlet valve adapted to automatically close against back pressure and against back water flow. v

Another object of the invention is to provide a floor drain having a flange on which the drain plate is supported the flange being arranged to catch any seepage around the d 'ain plate and carry it into the drain.

Another object of the invention is to provide a back water floor drain having an inlet valve adapted to be threaded into position in the drain inlet and being readily removable to allow cleaning of the drain.

These objects and the several novel features of the invention are hereinafter more fully described and claimed and the preferred form of construction by which these objects are attained is shown in the accompanyingd awings in which Fig. 1 is a section through a back water floor drainembodying my invention.

Fig.2 is a plan view of the inlet valve and seat member.

The device consists oil a U shaped body portion 1 shown in 1 lg. land having an outlet 2. The body or trap 1 is provided with a cleanout plug 3 above the outlet and a peripheral flange 4!: is cast integrally with the upper end oi the body pi'irl'ion 1 and extends upwardly at an angle at the outeredge as shown in Fig. 1. A valve member 5 is threaded into the inlet end of the body portion 1 and is provided with a valve seat 6 against which the valve 7 normally seats by gravity. I The valve 7 is pivotally secured to an arm 8 which is pivotally mountedbetween the lugs 9 on the valve member 5 as shown in Fig. 2. Theselugs 9 as will be noted from 1 are within the circumt'erence of the member 5 so that the valve member 5 and the valve 7 may be inserted through the threaded flange 10 in the inlet 14 and threaded into position. j This arrange ment allows the valvemember and valve to be 1928. Serial No. 291,897.

removed at any time for cleaning out the inlet side of the trap or body portion 1 andthe clean-out plug 3 may be removed for cleaning out the outlet side of the trap. As will be noted from Fig. 1 an annular member 11 is ecured to the flange at by the screws 16 and is of smaller diameter than the said flange. This member 11 is provided with a radially corrugated lower edge 12 and at the upper edge supports a drain plate 13 which may be cast integrally therewith or made separately as shown and together with the member 11 encloses the inlet lsaand clean-out plug 3.

This device set into a floor with the drain plate flush with the floor level. Any seepage between the annular member 11 and the tioor surrounding the said member is caught by the flange 1 and passes through the corrugations 12 in the lower edge of the. member 11 and into the inlet opening 14.

The ordinary drainage passes through the drain plate 13 and through the inlet 1% into the valve member 5. This flow swings the valve 7 oil from its seat so that the drainage will pass into the-trap 1, the trap 1 being formed on a long are at 15 so that there is no opportunity for matter to collect below the.

valve 7. The water normally remains in the trap 1 at about the level shownin Fig. 1 forming an ellective seal. Should the water attempt to back up through the drain it more firmly seats the valve 1 against its seat 6 and prevents the water *lrom backing up through the floor drain onto the floor. The valve '1" also prevents back pressiiire by gas or air. asthis type of back pressure also more lirmly seats the valve 7 and at the same time the valve free to open as the drainage passes into the trap through the'inlet. The valve 7 and member 5 are so arranged that the drainage enters the body of the trap at less than a right angle and above the water level therein and thus the Having thus i'ully described my invention, 7

its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is 1. A backwater floor drain comprising a hollow Usl1aped body member having an integral flange at the upper end, the body men1- her being provided with an inlet openingat an angle through the saidflange into thebo'dy member, a valve member threaded into the inlet, a valve pivotally supported on the valve member within the inlet and adapted to normally close the inlet by gravity, the said valve being adapted to open upon'flow of drainage therethrough, the said valve memher and valve being removable from the inlet to allow cleaning of the body member, a clean-out plug in the o )pos1te end of the body member, auoutlet opening from the body member beneath the said flange, an annular member of smaller diameter than the flange andhaving a corrugated lower edge resting on the said'flange and a perforate drain plate carried bythe said annular member.

A back water floordrain comprising a -hollow Ushaped body member having an integral flange atthe upper end, the body member being provided with an inlet opening at an angle throughthesaid flange and into the side Wall of the body member, avalve member threaded into theinlet and carrying an inlet valve normally closing by gravity, a cleanout plug in the endof the body member opposite the inlet, anoutlet opening from the body member beneaththe said flange, an annular member of smaller diameter than the flange having a corrugated lower edge resting on the said flange, the annular member extending about the inlet and clean-out plug, and a perforate drain plate supported in the upper edgeof the annular member, the drain plate being readilyremovable to allow access to the inlet and clean-out plug.

3. A back water floor drain comprising a hollow U shaped body member having an integral flange formed about the upper end thereof provided with an. upturned periipheral edge, an annular member positioned on the said flange within the peripheral edge having a corrugated lower edge through which seepage is adapted to pass into the drain, a drain plate carried by the sald annular member, an inlet opening at an angle through the said flange into the body member, a valve member threaded into the said inlet, a valve carried thereby normally closingthe inlet but adapted to open upon flow of drainage therethrough, an outlet opening from the U shaped member opposite the inletand a cleanout plug threaded into the U shaped member above the outlet. V

4. A back water floor drain comprising a hollow U shaped body memberhaving an outlet in one side thereof and an angular inlet in the oppositcside thereof, the body member being provided with an integral flange about let and an outlet adjacent the opposite ends thereof,aa flange formed integrally with the body member, an annular member having a corrugated lower edge seating on the said flange, a valve member threaded into the inlet, an inlet valvesupported by the valve member within the inlet and normally closing by gravity, the valve being adapted to open by flow therethrough into the bodymemher and adapted to close upon flow in the 0pposite direction.

6. A back water floor drain comprising a hollow U shaped body member having an outlet in one side thereof and an angular inlet in the opposite side thereof, the body member being providedwitha flange formed integrally with the upper edge thereof, the angular inlet opening through thetsaid flange, a clean-out plug threaded into the body member adjacent the outlet andan annular member carrying a perforate drain plate adapted to be positioned on the said flange to enclose the inlet and clean-out plug.

7. A back water floor drain comprising a trap of substantially U, shape having an outlet on one side and inletopening on the other, a tubular member secured in the inletto extend into the trap, a swing checkvalve at the inner endof thetubular member on a line substantially in a vertical plane adaptedvto close the inlet by back flow of fluid in thetrap, said parts being arranged with the check valve above the normal level of water in the trap, a flange at the upper end of the trap, a hollow body secured thereon having an open upper end, a. grating for the said open and, the said hollowbody and grating providing an inlet chamber discharging to the trap through the tubular member.

8. A backwater floor drain comprising a trap of substantially U shape having an outlet on one of its sides and an inlet opening on theother, a chambered body above the trap inlet having an opening to receive fluid, a grating coveringthe opening, a tubular member into which the fluid is. discharged from the chambered body, a swing check valve on the discharge end of the tubular member lying substantiallyin a vertical plane and p0- being a Wall integral with the trap extending across the upper end of the inlet leg, said Wall having a threaclecl aperture, a tubular meniber extending into the leg and supported in the said opening, a swing check valve at the inner end of the tubular member closable by back flow to the trap, a chamber above the trap having substantially vertical walls, the

said tubular member providing a discharge outlet for the chamber, and a grating provlchng a cover for the chamber through which fimclmay be chsch argecl theremto.

tion.

EDWVARD WV. N. BOOSEY.

In testimony whereof I sign this specifica-

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