US2091170A - Lavatory silencer - Google Patents

Description

Aug.v 24, 1937. a. o. TILDEN LAVATORY SILENCER Filed April 10, 1936 INVENTOR BY BR7' 0. T/LDE/Y ATTORNEY Patented Aug. 24, 1937 ETED STES ATENT OFFIQE '7 Claims.

My invention relates to drains such as lavatory wastes, toilet tank drains and the like and particularly to constructions which eliminate or reduce the noise or sounds produced upon discharge of water from a vessel.

The sound produced by the drainage of water from a sink and by the discharge of water from the tank of a toilet on flushing the same is very annoying and objectionable. This noise is due largely to the action of air drawn into the stream of water passing through the drain or discharge pipe from overflow passages which are provided for preventing flooding of the tank or fixture.

In accordance with my invention this action is prevented or reduced and the sounds incident thereto are largely or entirely eliminated. Wi'ule this result may be attained in various ways I prefer to accomplish the silencing of fixtures by separating or shielding the overflow passage from 90 the drain through which water passes in emptying a lavatory or tank. The action of the water on the air in the overflow passage can thereby be eliminated altogether or can be so modified or reduced as to avoid the gurgling sounds which have heretofore been so objectionable. Furthermore this desirable efiect can be obtained without impeding or seriously interfering with the flow of water through the drain.

One of the objects of my invention is to reduce or eliminate sounds incident to the discharge of water from a vessel such as a lavatory or the tank of a toilet.

Another object of my invention is to prevent or modify the action of air from a communicating passage upon water being discharged through a drain.

A further object of my invention is to shield or separate an overflow passage from the drain of a lavatory toilet tank or other fixture.

These and other objects and features of my invention will appear from the following description of various typical forms of devices embodying my invention in which reference is made to the accompanying figures of the drawing wherein:

Fig. 1 is a vertical sectional view of one form of lavatory or bath tub drain embodying my invention, and

Fig. 2 is a vertical sectional view of a drain for a toilet tank or the like embodying my invention.

In that form of my invention chosen for purposes of illustration in Fig. 1 of the drawing a lavatory or bath tub 2 is provided with a discharge opening with a Valve seat 4 for a conventional pop-up waste stopper 6 formed with openings ill communicating with the vertically movable drain member I2. The drain I2 extends. downward into a conventional trap I4 which retains water therein and may be provided with a clean-out plug IE5 of any usual or suitable construction for draining the trap.

The trap I4 is of larger diameter at its upper end than is necessary for engaging the drain member I2 and is formed with a slip connection engaging a fitting I8 which communicates with the overflow passage 20 of the fixture through the opening 22 and supporting connection 24 for the operating mechanism of the pop-up drain member 12. The connection 24 is secured to the fixture by means of a threaded spider 26 engaging the threaded lower end of the valve seat 4. A sealing member 28 is located between the connection 24 and the base of the fixture 2 whereas the lower end of the connection is threaded to receive the upper threaded end of the fitting I8. In the construction described two separate pas sages are provided, one for the water from the drain and other for the overflow. Both passages lead to the trap and are sealed by the water therein so that flow of water through one passage does not cause air to be drawn in from the other. The gurgling sound incident to the drainage of water from the fixture is therefore eliminated and the device operates quietly. The construction and operation of the valve or stopper whether of the pop-up or any other type and the action of the overflow and drain are unaffected by the novel construction and combination of elements used. Furthermore the fittings required may all be of standard type and form, the only change from present construction residing in the provision of an enlarged downwardly facing opening for the overflow about which the connection 24 is sealed.

The construction described may be used on lavatories, bath tubs, sinks and other fixtures or wherever water passes from a fixture directly to a trap.

When used in connection with a toilet tank from which water passes to the rim of the bowl a similar silencing action may be attained by providing a shield or guard which prevents or modifies the action of water passing through the spud from the tank to the bowl.

In the construction of Fig. 2 this is effected by the use of a spud 30 having a valve seat 23 displaced to one side of the central opening 34. The opposite side of the spud is formed with a threaded opening 36 for receiving a conventional upwardly extending overflow 38 the lower end of which communicates with a passage 40 formed in the fitting and extending along a wall thereof terminating in a downwardly facing opening 42 near the lower part of the spud.

In this construction water flowing through the spud does not pass across the end of the overflow passage as in the conventional overflow so that little if any air is drawn into the drain and that air which does enter the stream does not cause the objectionable gurgling sound incident to the operation of constructions of the prior art. The form of the lower portion of the overflow may be varied as desired or necessary for any particular installation to direct water or air along the wall of spud. However, I have shown the lower end of the overflow passages as extending parallel to the axis of the spud since this construction is easy to produce and oliers relatively little resistance to the flow of water through the overflow.

While the constructions described and illustrated herein re preferred, my invention is not restricted to the particular forms, constructions, combinations, and arrangements she but may be used in other relations and combinations. For this reason it should be understood that the forms of my invention herein shown and described are intended to be illustrative of typical construe-- tions embodying my invention and are not intended to limit the scope thereof.

I claim:

1. A plumbing fixture having a discharge opening, means with which said opening communicates, overflow means for said fixture also coinmunicating with said means and means providing a liquid seal between said discharge opening and overflow means.

2. A plumbing fixture having a discharge opening, means with which said opening communicates, overflow means for said fixture also communicating with said means and a water-retaining trap providing a liquid seal between said dis charge opening and overflow means.

3. A plumbing fixture having a discharge opening, overflow means for said fixture, a trap to which water from said discharge opening and overflow means is passed and means connecting both said over discharge opening and said over-- fiow means to said trap preventing communication between said opening and overflow.

4. A lavatory having a discharge opening, overflow means for the lavatory, a member with which said opening and overflow communicate, providing separate downwardly extending passages, a trap and means extending from said member to said trap preventing communication between said passages.

5. A lavatory having a discharge opening and a member for receiving a stopper extending downwardly therefrom, overflow means for the lavatory, means providing a passage concentric with said member and communicating with said overflow means and a trap to which said member and means extend, providing a liquid seal between said member and passage.

6. A plumbing fixture having a discharge opening, a stopper for closing said opening, means for actuating said stopper to permit and prevent the passage of water through said discharge opening, an overflow passage lor said fixture and means extending a substantial distance below the actuating means for said. stopper preventing communiction between said overflow passage and said discharge passage.

7. A lavatory having a discharge a stopper for sealing said passage and an overflow for said lavatory, means for actuating said stepper including a lube extending through said discharge passage to the upper end 01 which tube said stopper is secured, a member engaging said tube to raise and lower the tube and stopper, said tube extending a substantial distance below said member and preventing communication between said discharge passage and said overflow passage, whereby water in flowing through said passage is unaffected by air entering said fixture through said overflow passage.

BERT O. 'I'ILDEN.

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