US2166573A

US2166573A - Water closet

Info

Publication number: US2166573A
Application number: US189210A
Authority: US
Inventors: James M Teahen
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-02-07
Filing date: 1938-02-07
Publication date: 1939-07-18
Anticipated expiration: 1956-07-18

Description

July 18, 1939.

J. M. TEAHEN 2,166,573

WATER CLOSET 1 Filed Feb. 7, 193a FIG.I..

FIG-.2.

INVENTOR JAMES M. TEAHEN 9033mm www- ATTORNEYS Patented July 18, 1939 T ED: STAT ES WATER CLOSET James M. Teahen, Detroit; Mich.

Application February I 7,

" Claims.

The invention relates to water closets and has more-particular reference to a noiseless construction of rim flush. It has long been recognized in the art that it -is' exceedingly difiicult to prevent 5 noise during the flushing operation. One source of noise is the commingling of the water with entrained air so that during discharge there will be a hissing noise. Various attempts have been made to avoid this difficulty but so far as I am aware none of these has been fully successful.

It is, therefore, the primary object of the present invention to attain this noiseless discharge which is accomplished by the construction as hereinafter set forth.

In the drawing:

Figure 1 is a vertical longitudinal section through a water closet bowl of my improved construction;

Figure 2 is a sectional plan View thereof.

As shown, A is the water closet bowl; B the hollow rim and C a series of downwardly directed water discharge ports from the rim which are tangent to the inner surface of the bowl. D is the water inlet passage to the rim which is supplied 5 with water from any suitable flushing apparatus,

not shown.

With the construction as thus far described, Whenever water enters through the passage D into the hollow rim, the air within the rim must 30 be displaced and the usual result is that it is entrained with the water and passes downward through the port C, thereby making an objectionable noise. To avoid such result I have provided the following construction. E are partitions 35 across the hollow rim spaced from each other to form a chamber F, preferably located in the rim at a point substantially diametrically opposite the inlet D. These partitions do not extend completely to the top of the hollow rim, but leave ports E thereover, which permits the displaced air to pass into the chamber F. The partitions E are also preferably obliquely inclined upward toward these ports so that the water when it finally reaches the partitions will be directed upward through the ports and into said chamber F. Below the chamber F is a passage G which extends downward in the wall of the bowl. to a point but slightly above the normal level of the water seal. The passage G is connected to the chamber F by a port H and the cross sectional areas of these ports and the passage is such as to provide for free displacement of the air within the hollow rim and without appreciably increasing the pressure thereon.

With the construction as described in operation,

1938, Serial-2N0. 189,210 (o1. 4 69)' when water from. the flushing apparatus flows through: the passage D- into the hollow rim. it will drive the air out: of said. rim. through: theports; E. into the chamber: F, then downward through the port H into the passage G, finally escaping into the bowl above the water seal. As soon as the water has substantially filled the hollow rim and before it passes through the ports E and into the chamber F the discharge of water through the ports C will raise the level in the bowl. This in turn will seal the lower end of the passage G so as to cut off direct communication betweenthe same and the external atmosphere. Thus, any noise that may be developed by commingled air and water passing through the ports E, chamber F, and into the passage G, will not be communicated to the external atmosphere, but will be muffled if not completely destroyed by the water seal. In other words, where there is atmospheric communication d between the chamber and the external atmosphere, any noise developed in the former will be communicated to the latter. If, however, there is a solid or liquid seal between said chamber and the external atmosphere, then the noise so developed will be largely destroyed.

It will be evident from the above that my improved construction accomplishes two objects which are instrumental in eliminating noise: first, the free venting of the hollow rim for the displacement of air therefrom; and second, the sealing of this vent before the entrance of water thereinto which might develop noise. If the vent were sealed at the beginning then the air would need to break this seal, which in itself might create some noise. On the other hand, if the vent were left open all the time, then noise would be developed therein as soon as reached by the, water from the rim. However, there would be a lessening of noise even if the vent were sealed at the beginning, provided that such seal did not develop too high a resistant pressure to the escape of air. The essential feature is that means is provided for the displacement of air from the rim other than through the discharge ports for the water.

-What I claim as my invention is:

1. In a water closet, the combination with a bowl having a hollow rim with downwardly directed discharge ports therein, of means for supplying water to said rim, an air vent from the rim normally open to the external atmosphere and located at a point removed from said water supply being of sufficient area for escape of air with negligible rise in pressure, and means for sealing said atmospheric opening when the air from the rim is substantially displaced.

2. In a water closet, the combination with a bowl having a hollow rim with downwardly directed water discharge ports therein, of means for supplying water to said rim, and an air vent conduit for the rim located at a point removed from said water supply and extending downward in the bowl to a point slightly above the water seal therein being of sufiicient area for escape of air with negligible increase in pressure and whereby the initial rise of Water level in the bowl will seal said vent.

3. In a water closet, the combination with a bowl having a hollow rim with downwardly directed water discharge ports therein, of means for supplying water to said rim and directing the same around opposite sides thereof, andmeans for venting said rim located substantially diametrically opposite said water supply including a conduit extending downward in said bowl and terminating slightly above the normal water seal being of sufficient area for escape of air with negligible increase in pressure and whereby air within the rim is first displaced through said vent and the latter is then sealed by the initial rise of level in the bowl.

4. In a water closet, the combination with a bowl having a hollow rim with downwardly directed discharge ports therein, of means for supplying water to said rim, a passage other than said discharge ports through which air is displaced from said rim being of sufiicient area for escape of air with negligible rise in pressure, and means for sealing said passage when the air from the rim is substantially displaced. r 5. In a water closet, the combination with a bowl having a hollow rim with downwardly directed discharge ports therein, of means for supplying water to said rim, an air vent from the rim located at a point removed from said water supply and extending downward to a level in proximity to the normal water seal being of sufficient area for escape of air with negligible rise in pressure, and means for sealing said vent when the air from the rim is substantially displaced.

JAMES M. TEAHEN.