US2697840A

US2697840A - Waste and overflow fitting

Info

Publication number: US2697840A
Application number: US295900A
Authority: US
Inventors: Vernon P Steele
Original assignee: KENCO PRODUCTS CORP
Current assignee: KENCO PRODUCTS CORP
Priority date: 1952-06-27
Filing date: 1952-06-27
Publication date: 1954-12-28
Anticipated expiration: 1971-12-28

Description

Dec. 28, 1954 v, STEELE 2,697,840

WASTE AND OVERF LOW FITTING Filed June 27, 1952 2 sheets-sheet 1 i Foo INVENTOR. H rman)? Sleek ATTOF/VEY Dec. 28, 1954 v p, STEELE 2,697,840

WASTE AND OVERFLOW FITTING Filed June 27, 1 952 2 Sheets-Sheet 2 INVENTOR. him/01v]? Jlegle ATTOENEY United States Patent WASTE AND OVERFLOW FITTIN G Vernon P. Steele, Nor0ton,'Conn.', assignor to Kenco Products Corporation, NeWYork, N. Y.

A lication-June 27, 1952, Serial'No. 295,900

3 Claims. Cri r-s) Thisinvention; relates to :manually demountable, popup typedrain valves and to an improved combination actuating and locking'member therefor. More .particularly, the-invention: relates to a crank-shaft actuated valve and housing of the'type specially adapted for use with drain pipes for sinks usedain soda fountains, luncheonettes, etc.

With the enormous development of luncheonette and soda fountain trade in the-:last decade, therehas been a concomitant increasein the waste disposal load of parts which require the services of skilled plumbers,

bothfor repair and maintenance, as =well-as for initial installation. Because of the fact that the valve mechanism parts are usually fixedly interconnected, removal of the valves for cleaning the same is practically impossible, and where unskilledv fountain help attempt to clean clogged valves of the fixedly mounted type, serious damage to the equipment is too often the result.

It has now been found that the prior art disadvantages, above indicated, can be substantially elim'inatedby the use of a wholly detachable valve in waste-valve mechanisms, the novel valve havinga rectilinear valve stem reciprocable in guide slots in the-valve housing, the valve stem-being essentially bifurcated and presenting a specially configured section serving to receive an offset carn section or knuckle of a valve-actuating shaft/mounted transversely in an axial diameter of the valve housing. The novel valve herein is reciprocable to its valveopen and valve-closed positions by mere rotation of the valve-actuating shaft, and, in the valve-open position, is readily removable from the valve mechanism by lifting with the fingers, whereby the valve mechanism and drain pipe can be quickly and efficiently cleaned, and the whole sink disposal equipment properly sterilized, where required.

It is therefore among the objects of the present invention to provide a novel waste valve construction of the character described, which is manually mountable and demountable, and is reciprocable to and from open to closed position, as well as locked in closed position, by simple rotation of a valve-actuating shaft having a cam section engageable with a specially conformed cam surface in the valve stem.

With these and other objects in view, which may be incident to my improvements, the invention consists in the parts and combinations to be hereinafter set forth and claimed, with the understanding that the several necessary elements comprising my invention, may be varied in construction, proportions and arrangements, without departing from the spirit and scope of the appended claims.

In order to make my invention more clearly understood, I have shown in the accompanying drawings means for carrying the same into practical effect, without limiting the improvements in their useful application to the particular constructions, which for the purpose of explanation, have been made the subject of illustration.

ice

In the:drawings, like numerals refer to similar parts throughout the several views, of which Figure 1 is a vertical axial section through a popup valve of the present invention as installed in a sink;

Fig. 2 is an elevation of the novel valve herein as mountedin a sink, the sinkbeingshown in fragmentary section;

Fig. 3 is an exploded view of the valve elements, and

Fig. 4 is a front elevational view, partly in section, showing a modified form of valve member.

Referring to the drawings, the novel Waste-valve mechanism of the present invention will be seen to comprise a funnel-shaped casing or housing 10, having an upper, bowl-shaped section 11, flanged, as indicated at 12 and provided with an internal screw-thread 13. The bottom section 14 of the valve housing has an external screw thread 14', and is of uniform diameter. It is also provided with a pair of diametrically opposed lugs or

bosses

15, 16. At right angles to the

bosses

15, 16, the inner surface of section 14 of the valve housing is routed out to provide a pair of diametrically opposed

guiding grooves

17, 18, whose function will be adverted to more in detail; hereinafter. The upper end of the inner surface of bottom section 14 of the valve housing is ground to form a valve seat 19. Lug 15 is tapped to form a socket 15, while boss 16, which is appreciably larger than boss 15, is provided with a threaded aperture .16. The socket 15' journals one end 21 of a valve stem-actuating shaft 20. The shaft 20 has a main body portion 22 terminating inan outer end 23, suitably conformed to receive an actuatingmember, such as a hand wheel 28, or the like. Adjacent the journaled end 21, the shaft 20 is offset, as-indicated at 24, to provide a valve stem-engagingsection. Astuffing box 25 receives the body portion 22 of the shaft, and is itselfthreaded in aperture 16' of boss 16 of the valve housing 10. The actuatingshaft 29 is mounted in place by inserting end 21 through aperture 16' and across to the socket 15, in

which it is journaled. The stufiingbox 25 is then moved along the shaft, into apposition with boss 16, and is threadedly engaged with the threaded aperture 16'. A gasket 26 is fitted over shaft 22 and is forced into sealing position in stuffing box 25 by lock-nut 27. The valve 'mechanis'mis now ready to receive the valve 30.

The valve 30 comprises a horizontal disc section 31 of inverted frusto-conical shape having a marginal surface 32 adapted for mating engagement with valve seat 19 of the valve casing10. The valve is provided further with an integral, depending valve stem 33, of generally rectangular shape, and having parallel, machined

sides

34, 35, adapted to be received in the guiding

grooves

17, 18, of the valve casing 10. The lower portion of the valve stem is bifurcated and is specially conformed to provide an inturned lug 36 having its free edge lying substantially in an axial plane of the valve housing, and defining a horizontal slot 37 adapted to receive valve stem-engaging section or knuckle 24 of shaft 20. The valve stem is further slotted to provide a surface 38, opposed to the free edge of lug 36. A shouldered projection 39 joins guide surface 38 and the upper surface of horizontal slot 37.

In lieu of making the valve or stopper 30 in one piece, it may be formed from separate pieces, as shown in Fig. 4. In the modified arrangement the disc portion 31', having its marginal surface 32 adapted for mating engagement with valve seat 19 (Figs. 1 and 3), is formed from rubber, for example, neoprene rubber or the like, the legs or side members 34 and 35' being formed from metal. The rubber disc 31' is positioned between suitable washers 46 and securely attached to the upper body portion of the stopper by a machine screw 47, or other suitable fastening means.

The valve housing or casing 10 is secured in place on a sink, designated generally by S, in the following manner: A flanged collar 40, is externally screw threaded, as shown at 41, and is provided with a plurality of internally disposed, radially spaced lugs 42, adapted to receive a suitable wrench, whereby the collar can be screwed into place. The valve housing is apposed to the sink discharge aperture, and the flanged collar 40 screwed in place from the opposite side of the sink Wall, a suitable gasket 43 being interposed between the flange of the collar and the sink. The inner edge of the collar is grooved, as 1nd1- cated at 44, to receive the flanged edge of a perforated strainer 45.

The installation and proper maintenance of the novel pop-up waste-valve mechanism is self-evident. The valve housing 10 and the flanged locking collar 40 may be first apposed and interlocked in place on and about a suitable sink drainage aperture. The valve stem-actuating shaft 20 can then be threaded through aperture 16 in the housing, and its end 21 journaled in its socket 15, as set forth in detail hereinabove. The valve 30 can be inserted in place, and can be removed by the fingers of one hand. It is seated by gravity, and is locked in valveclosing position by engagement with the offset or knuckle 24 of the valve-actuating shaft 20. A quarter turn rotation of the shaft raises the valve while unseating the offset from the slot 37 of the valve, and the offset is moved to a bearing position against the vertical bearing surface 38 of the valve stem. In this position of the valve elements, the valve can be inserted or removed with com plete freedom, and without requiring the use of any tools whatever.

The novel pop-up waste-valve mechanism is completely demountable and can be readily assembled. for new installations, and has the added advantage that it can be used as a replacement in existing installations without requiring revamping or redesign of any of the sink structures.

There has been described and illustrated a device capable of performing all of the specifically mentioned objects of this invention as well as others which are apparent to those skilled in the art. Various uses of the present invention may be made employing the described structure. Accordingly, it is apparent that variations as to operation, size and shape, and rearrangement of elements may be made without departing from the spirit of the invention. Accordingly, limitation is sought only in accordance with the scope of the following claims.

I claim:

1. A one piece waste plug fitting comprising a tubular member having a radially extending flange on its upper end and threaded at its opposite end, the upper portion of the tubular member being essentially cup-shaped; a pop-up valve slidably mounted in said member; means for securing said fitting in operative position; a bifurcated valve stem integral with the valve; a stufiing box in the tubular member below the valve seat; a socket in the tubular member diametrically aligned with the stufimg box; a valve actuating shaft journaled in the stufiing box and socket; a knuckle in the shaft intermediate its journals; means formed in one of the bifurcations comprising a lateral slot detachably engageable by the said knuckle,

It is ideal whereby the valve is moved to open and closed positions and is detachable in the open position; and actuating means secured to the free end of the shaft.

2. A pop-up valve structure of the character described, comprising, in combination, a valve housing open at both ends; a valve seat in the housing intermediate the said ends; a disc valve normally seated in said valve seat to close the valve; a generally rectangular shaped flat valve stem having parallel sides; means formed in the housing subjacent the valve seat receiving the parallel sides of the valve stem, comprising diametricallyopposed grooves, whereby the valve is freely reciprocable but is prevented from rotation; said valve stem having a cam surface formed therein, comprising a lateral upper slot extending inwardly of the valve axis, and having a subjacent opening extending at right angles to the lateral upper slot; a valve-actuating shaft journaled in the housing at right angles to the valve stem, said shaft having a knuckle formed therein intermediate its journals, said subjacent opening being adapted to freely receive and pass the knuckle of the operating shaft, whereby rotation of the shaft in one direction moves the knuckle into locking eugagement with the lateral slot formed in the valve stem, and counter-rotation of the shaft at least a quarter of a turn will unseat the valve and permit it to be removed from the casing.

3. In a valve structure of the character described, comprising, in combination, a valve housing open at both ends; a valve seatin the housing intermediate the said ends; a disc valve normally seated in said valve seat to close the valve; a bifurcated valve stem integral with the valve disc; a valve actuating shaft journaled in the housing at right angles to the valve stem, said shaft having a knuckle formed therein intermediate of its journals; means formed in one of the bifurcations comprising a lateral slot detachably engageable by the knuckle, said valve stem having an opening subjacent said slot and at right angles thereto, whereby the valve is moved to open and closed positions and is freely removable in its open position.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 447,232 Croswell Feb. 24, 1891 541,845 Gilcher July 2, 1895 654,600 Bunting, Jr July 31, 1900 925,245 Storey June 15, 1909 1,479,944 Vallier Jan. 8, 1924 1,783,460 Brotz Dec. 2, 1930 1,839,663 Fehn Jan. 5, 1932 1,980,250 Baxter Nov. 13, 1934