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Publication numberUS2575905 A
Publication typeGrant
Publication dateNov 20, 1951
Filing dateSep 20, 1949
Priority dateSep 20, 1949
Publication numberUS 2575905 A, US 2575905A, US-A-2575905, US2575905 A, US2575905A
InventorsBoosey Edward W N
Original AssigneeBoosey Edward W N
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Waste flow control
US 2575905 A
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Description  (OCR text may contain errors)

NOV. 20, 1951 E, w N, BQQSEY 2,575,905


EMMY, (ll/K ansqf flrronusy Patented Nov. 20, 1951 UNITED STATES PATENT OFFICE WASTE FLOW CONTROL Edward W. N. Boosey, Detroit, Mich.

Application September 20, 1949, Serial No. 116,803

2 Claims.

This invention relates to a waste flow control the object being to provide a control of flow of refuse liquid in gallons per minute from a container to an outlet conduit.

These and other objects and features of the invention are hereinafter more fully described and claimed and a waste flow control embodying my invention is shown in the accompanying drawing in which Fig. 1 is an elevation showing the apparatus in conjunction with a sink.

Fig. 2 is an enlarged cross section of the apparatus.

The apparatus is shown in Fig. 1 in conjunction with a sink I above which is the usual hot and cold water faucets 2 and 3. The bottom wall of the sink has a circular aperture including an inwardly extending threaded flange and the upper surface of the bottom wall 4 of the sink I has a threaded aperture to receive an externally threaded outlet fixture 5 which has a peripheral flange 6 at its upper end engaging a recess provided therefor in the upper face of the bottom wall 4 of the sink. The fixture 5 is externally threaded for a portion of its length to engage the threaded face of the flange 1 of the top wall of casing member 9 and a packing ring 8 is provided between the upper face of the chambered member 9 and the bottom wall 4 of the sink. The body 9 has a threaded inlet ID on one side to receive a vent pipe II. This pipe has a vertical portion 12 the open upper end of which terminates preferably at about the upper surface of the flange of the sink I.

The vent pipe II leads to a waste conduit I1 and in the conduit is a well known separator 24 adapted to prevent grease and other deleterious matter from entering the drain line [3 when the flow rating in gallons per minute does not exceed the flow rating of the separator.

The outlet end M of the fixture 5 extends into the chamber I5 of the member 9 and the lower end of the member 9 is externally threaded and an internal rib [6 seats on the upper end of the waste conduit H. A flanged cap I8 is threaded on the threaded end of the member 9 and a packing I9 is positioned between the cap [8 and the threaded end of the member 9 and a removable plug 20 seats on a flange 2| of the outlet fixture 5. The plug 28 has a ring 20 to permit ready removal thereof.

The upper end of the vertical portion l2 of the vent pipe is open to atmosphere and terminates at about the level of the upper surface of the sink I. Air is thus drawn into the chamber l5 7 and discharges with the liquid to the waste conduit IT. This arrangement prevents less than atmospheric pressure in the outlet fixture and chamber leading to the waste conduit.

It will be observed from the foregoing that liquid in the sink I may flow through the outlet fixture 5 on removal of the plug 20 and the liquid discharges into the waste conduit ll open to the air by means of the vent pipe I2 and any grease or non-liquid matter is retained in the separator 24.

When the flow of liquid is materially restricted, due to the retained material in the member 24, the separator may be removed, cleaned and replaced and secured in position by means of the nuts 22 and 23 on opposite ends of the separator. While not so shown these nuts may be provided with a packing means between the respective ends of the separator and the respective nuts. The diameter of the outlet end M of fixture 5 determines the gallons of flow of liquid per minute. The air inlet l2 prevents syphonage at the waste outlet orifice.

It is believed obvious from the foregoing description taken in conjunction with the drawing that the various objects of the invention are attained by the structural character and relationship of parts.

Having thus briefly described my invention, its utility and mode of operation, what I claim and desire to secure by Letters Patent of the United States is:

l. A waste fiow control for a sink having an outlet comprising an outlet fixture secured within said outlet and depending from said sink, a chambered member surrounding the depending end of sad fixture and secured thereto, said member having a lateralinlet opening and an outlet opening in its bottom wall, an air vent pipe joined to said member at its inlet opening, a waste conduit with its upper end projecting up into the outlet opening of said chambered member, the portion of said member adjacent said outlet being exteriorly threaded, and an interiorly threaded apertured cap fitted over said waste conduit and threadably joined to the exteriorly threaded portion of said chambered member.

2. A waste flow control for a sink having an outlet comprising an outlet fixture secured within said outlet and depending from said sink, a chambered member surrounding the depending end of said fixture and secured thereto, said chambered member having a lateral inlet opening and an outlet opening in its bottom wall, said outlet fixture extending to the bottom of said inlet opening, an air vent pipe joined to said chambered member at its inlet opening, and a waste conduit projecting up into the outlet opening of said chambered member and joined at its upper end to said chambered member.


REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Barry et a1 Feb. 21, 1893 Brown Oct. 8, 1901 Lafin Mar. 16, 1926 Schmidt Feb. 9, 1932 Hertsch May 3, 1932 Hirshstein June 2, 1942

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US492261 *May 2, 1892Feb 21, 1893 Grease-trap
US683906 *Apr 7, 1900Oct 8, 1901Albert BlanchardSanitary-plumbing system.
US1577039 *Aug 25, 1924Mar 16, 1926Fred LafinFloor drain
US1844443 *Sep 28, 1931Feb 9, 1932Cincinnati Butchers Supply CoFloor drain
US1856099 *Jul 23, 1931May 3, 1932Hertsch Bernhard AGrease trap or interceptor
US2284737 *Oct 4, 1938Jun 2, 1942Ruth NewmanApparatus for separating liquids of different specific gravities
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2739317 *Dec 11, 1952Mar 27, 1956Gen Motors CorpDomestic appliance
US2777137 *Apr 21, 1953Jan 15, 1957Mcfadden John PCloset bowl ventilator
US2979274 *Aug 9, 1957Apr 11, 1961Westinghouse Electric CorpFood waste disposer
US3122757 *Apr 13, 1959Mar 3, 1964Edward W SowardsToilet ventilating system
US3159171 *Nov 10, 1960Dec 1, 1964Bullock Ira AVacuum breaker
US4480656 *Feb 21, 1979Nov 6, 1984Johnson Robert LPlumbing fixture
US4811753 *Dec 17, 1987Mar 14, 1989Bethune Paul PRecreational vehicle drain vent
U.S. Classification4/211, 137/216
International ClassificationE03C1/14, E03C1/12, F16B7/00
Cooperative ClassificationE03C1/14, E03C1/12, F16B7/00
European ClassificationF16B7/00, E03C1/12, E03C1/14