US2161863A - Lavatory ventilator - Google Patents

Description

June 1939- L. N HARBEKE LAVATQRY VENTILATOR Filed April 8, 1938 INVENTOR LJVI Harbelce BY QQQJAAZ.

ATTORNEY Patented June 13, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates generally to a toilet structure and in particular is directed to an improved ventilating arrangement for toilets.

The principal object of my invention is. to provide a ventilating arrangement for use in combination with a toilet assembly wherein the toilet bowl and water tank are unitary; the ventilating arrangement being so designed that it is entirely out of sight and yet efiicient and continuous in operation.

Another object of my invention is to provide a toilet ventilator which embodies means to produce a substantial suction in the bowl and without the use of driven mechanical apparatus such as a fan or the like.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawing similar characters of reference indicate corresponding parts in the several views:

Figure 1 is a side elevation of a toilet as installed and including the invention.

Figure 2 is an enlarged, fragmentary section on line 2-2 of Fig. 1.

Figure 3 is a fragmentary front view of the lower end of the wall conduit.

Referring now more particularly to the characters of reference on the drawing, the numeral l indicates a modern type toilet bowl arranged in unitary combination with a water tank 2 in the usual manner. As is common practice, the bowl is provided with a hinged seat 3 and a hinged cover 4.

A continuous. sealing gasket 5 is secured to the seat for engagement with the rim of the bowl, while another continuous sealing gasket 6 is fixed on the cover for engagement with the seat. These gaskets are preferably of resilient material such as rubber or the like. A water supply passage 1 extends from tank 2 into the bowl at the rear and communicates with the usual water distributing channel 8 within the bowl at the rim.

The toilet combination, which is cast as an integral unit, includes a ventilator passage 9 leading from a port 10 which opens into the bowl at the back and through the rim above the water intake; said passage 9 extending into water tank 2 and upward at the front thereof to a point adjacent the top of the tank. The passage 9 then turns rearward and extends through the back B of the tank and through wall W into the interior thereof between adjacent studs S.

This passage 9 gradually increases in cross. sectional area from port In to the passage end within the wall. Said end of the passage within the 5 wall is connected to the lower end of a wall conduit H which is of much greater cross sectional area than any portion of passage 9 and is about as big as the stud spacing and their width will permit. Conduit H projects upward in the wall 10 and through the roof, the outer end having a protective hood l2 thereon.

In operation my improved ventilating arrangement is quite efficient and as the upward flow of air is carried in passage members increasing in cross sectional area from port [0, a positive natural draft or suction is created which removes all objectional odors from the bowl I. Also, when the seat and cover are lowered, gaskets 5 and 6 further prevent escape of odors into the room.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the divice, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

l. A toilet Ventilator including with a unitary toilet bowl and flush tank, there being an integral neck connecting the bowl and tank and in which the water flushing conduit is formed, continuous air passage means formed integral with the bowl, neck and tank and extending from the bowl above the conduit through the neck with an upward slope, then up the front of the tank on the inside to adjacent the top and then across the tank to a termination beyond the back side thereof for connection to a flue leading to exterior atmosphere.

2. In a toilet apparatus which includes a toilet bowl, a flush tank above and behind the same and a centrally disposed flushing conduit leading from the bottom of the tank to the bowl at the back thereof; a ventilating device to withdraw gases from the bowl including means forming an unbroken central venting passage leading from the bowl directly above the flushing conduit to the interior of the tank adjacent the bottom, then up inside the tank at the front to adjacent but below the top thereof and then across the tank to an open termination behind the same a suificient distance therefrom to project through the inner face of an adjacent wall for connection to a suction flue.

3. A toilet ventilator including with a toilet bowl, air passage means leading upwardly and rearw'ardly from the back of the bowl to an initially open termination a predetermined distance behind the bowl, and an upstanding flue leading to exterior atmosphere connected to said open termination of the passage means and forming a continuation thereof; the cross-sectional area of the flue throughout its extent being considerably greater than that'of the passage means.

LOUIS N. HARBEKE.

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