US2635254A - Waste and overflow fitting - Google Patents

Description

Patented Apr. 21, 1953 WASTE AND OVERFLQW FITTING Vernon P. Steele, Fairfield, Gonn assignor to Kenco Products Corporation, New York, N. Y.

Application December 16, 1943, Serial No. 651,633,

3 Claims.

This invention relates to a waste and overflow fitting. One of the objects of this invention is to provide a waste and overflow fitting which is simple,

practical and thoroughly durable. Another Object'is to provide a fitting of the above type whichhas a minimum of individual parts, thus greatly facilitating the assembly thereof. Another object is to provide a fitting of the above character which may be quickly and easily operated by the user. Another object is to provide a fitting of the above character which is well adapted to withstand the wear and tear of hard use. Another object is to provide a fitting of the above character whose manufacture will be economical both from the standpoint of labor and materials used. Still another object is to provide a fitting of the above character which will not clog Or be damaged by foreign material passing through the drain valve. Other objects will be in part obvious and in part pointed out hereincertain parts" being shown in elevation and other parts being broken away for purposes of illustration Q Figure 2 is a horizontal section on an enlarged scale taken on the line 2-2 of Figure 1;

Figure 3 is a vertical section on an enlarged scale taken on the line 33 of Figure 1; and

IFigure 4 is an elevation on an enlarged scale of a portion of the waste and overflow fitting shown on the line 4- 4 of Figure 1.

Similar reference characters refer to similar parts throughout the several views of the draw- Referring now to Figure 1, thewaste and overflow fitting, generally indicated at N, is designed for use 'withany sink, such as sink II, but is preferably used in the type of sink used at soda fountains and other places where considerable waste matter may pass down thedrain. In 1%- tings of this type, considerable difliculty has heretofore been experienced because the valves very often become clogged with waste material, such 2 as strings from dish rags and mops. Also; solid foreign bodies, such as pieces of glass andgrit, very often damage or adversely afiect the efficient operation of the valve-structure; It is accordingly another object of this invention to provide a waste and overflow fitting, the operation oi which will not be affected by either clogging materials, such as those mentionedabove, or gritty solid particles.

In general, the fitting includes a cup, generally indicated at [2, which is connected by a pipe l3 to one of the openings in a T joint, generally indicated at [4. A slotted resilient sleeve, generally indicated at 15, is slidably mounted within T joint l4 and acts as a slide valve to open or close the port through which waste enters the T joint from pipe [3. Sleeve 15 is moved up and down within joint 14 by means of a rod [6 which is connected thereto and which extends upwardly through pipe 11 and elbow I8. The upper end of rod I6 extends outwardly into the upper portion of the sink through the overflow openings formed in the surface of a flange nut, generally indicated at l9.

Specifically, the sink II has four walls, two of which are shown at I la and Nb and a bottom I la. A circular opening 2 0 is formed in the bottom l lc of sink I l, and the periphery of opening 20-is flanged downwardly. Cup I2 is positioned beneath opening 20 and is mounted on the sink The threads on the outer surface of the lower portion of flange nut 2| thread into complementary threads in the inner surface, of the upper portion of cup l2 to securely fasten the cup to the bottom of the sink. A gasket 22 is provided between the upper edge of cup I2, which flanges outwardly, and bottom I la of sink H to prevent leakage at this point. A detachable basket 43 is mounted on flange nut 21 to strain waste matter passing through cup l2. Pipe H, which has an elbow l3a therein and an annular flange [3b formed on its upper end, is connected to the lower portion 12a of cup l2 by a lock nut 23. A gasket fl is positioned between the upper surface of flange I 3b and the lower surface of cup I 2 to prevent leakage at this point. The left-hand end of pipe 13 extends into the foot portion I la of T joint l4, and itis connected thereto by means of a look not 25 and a gasket 26.

The innersu'rfaceof the T portion Mb ofiT .joint 14 is machined to provide a smooth surface "on which sleeve l'5'slide'si "Sleeve 1'5, which preferably has an external diameter the same as the internal diameter of the head portion Nb of 3 T joint I 4, is preferably made from resilient brass tubing, and has a slot 21 (Figures 1 and 3) extending longitudinally thereof on the side of said sleeve positioned away from the waste port 28 when in operation. After sleeve I is slotted, it is preferably spread, so that when in operation within T joint I 4, it is self-biasing when compressed, and exerts resilient pressure against the side walls of T ortion filth wliichholds it-incontact with the inner surface of the T joint surrounding port opening 28. Slot 21 is directly opposite the vertical axis of port 28 so that sleeve I5 is evenly pressed into engagement-with the side of portion I4b in which port 28 is positioned. As will be seen from the sholwingsin Figs. 1 fandza of the drawings, the ends of valve member "I5 are cut on the bias, that is at an angle. so that the slotted side of the member is appreciably'lo'nger than the opposite side thereof which serves to close inlet port 28 of the T joint I4. Because of the; slantin ends, member 45 will more readily out grease and other matter which may line or -=,clog any part of the head section 14b of T v'oint l4 and insure its r pid removal thr u h drain pip The lower .end of. .rod I5 is T-shaped and has a ,1' portion Ifia, the ends .of which are journaled in and secured to sleeve I5. The sides of sleeve I5 are pressed inwardly to form aligned, inverted bosses or dished portions .219 and 30 (Figures 2 land 3) through which aligned holes 3.I and 32 are drilled. The T portion 16a of rod I6 is .of

sufficient length so that when its ends are seated in-position in .holes .3I and .32, they slightly clear .the side walls .of the T ,portion I412 of T joint i=4 (Figures 2 and .3). By providing inverted bosses .ordished portions in sleeve I5, it is strengthened,

and, at the same time, a simple, positive and inxpensive connection is formed between rod t6 andsleeve I5.

, A pipe I! having a flanged lower end 11a is connected to the upper endof .1 Joint portion Mb by means of alock 11141733.. A gasket 34 is positioned between flange IIa and the r pperend of T head p rtion 14b to prevent leakage at this Point Th upper end of pipe ll extends, into elbow I8 and is secured thereto by any suitable manner, such as by brazing .35.. The right-hand opening inelbow 18, as viewed in Figure 1.v is

po oned in alignment with a circular overflow openin .35 formed in side wall He of sink H. .A flange .nut 19 is threaded into the inside of elbow l8 and secures elbow I8 to sink 1 l Gasket 38, which is positioned between sin-k .II and elbow I.8, prevents leakage around elbow 1*8.

, The flange nut I9 (Figures 1 and 4) has a solid center portion I So in which are formed a plurality of overflow openings 30 and .41. Opening M is in the form of a cross, one of the slots of which is vertically positioned. Rod 16 extends outwardly through the vertically positioned slot in ,will positively hold sleeve I5 in any adjusted position. Thus, it will be seen that, sleeve I may be adjusted to any desired position in member I4 so that rate of drainage from sink II, may be at any desired rate. Furthermore, it will be seen that the waste matter passing down pipe I3 and through T joint 14 has a free passage so that it cannot clog the valve. Any waste matter collecting in port 28 will be sheared by the angular lower edge of valve I5, and any solid foreign gritty matter, such as glass, has a clear path so that it can pass downwardly into waste pipe 43. The particular type of connection between the sleeve and rod is of major importance, because, as pointed out hereinabove, the inverted bosses in the sleeve :materially strengthen it 'atlthe sides and also providea simple and economical manner of connecting the rod to the sleeve.

It will thus be seen that a thoroughly efficient and practical waste and overflow fitting has been described in which the several objects mentioned hereinabove, as well as many others, have been successfully accomplished.

As many possible embodiments may be made 01 the above invention, and as many changes might be made in the embodiment above set forth, it is to be understood that all matter hereinbefore set forthor shownin the accompanying drawing is to be interpreted as illustrative and .not in a limiting sense. I.claim: ll. valve 'of the character described-comprising a T-shaped hollow casing, a sink drainage cross-arm ,a'ournaled in said hollow valve .mem- 7 her at right anglesto the plane .of said vertical split and an operating ,stem fixedly connected to thceross-arm. A

.12.. The combination of a cylindrical valve chamber having a port in the wall thereof; a spring metal expansible hollow valve .slidably mounted in said chamber vfor. controlling said port, said valve being vertically slotted in an axial direction opposite .said port to permit expansion thereof into sealing contact. with the wall of the chamber, aligned bosses in the valve at right angles to the plane of said verticalslot, said bosses having aligned apertures; a rig-id cross-arm journaled in said bosses; and a rigid valve-actuating member integral with said crossarm.

.3. The combination of a cylindrical valve chamber having .a port in the wall thereof; an open ended tubular valve member slidably mounted in .said chamber for controlling, said port, the wall of said tubular valve member having integral spring biased en agement with the wall of the chamber, aligned bosses in the valve at right angles to the axis. of the valve, said bosses References Cited in the file of this paten t UNITED STATES PATENTS 1.-

Number .Name -Date ":1

1,-332,-'793 Bloch Mar.2,1920 1,901,649 Huber Mar. 14-, 1-933

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