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Publication numberUS3913605 A
Publication typeGrant
Publication dateOct 21, 1975
Filing dateMar 11, 1974
Priority dateMar 11, 1974
Publication numberUS 3913605 A, US 3913605A, US-A-3913605, US3913605 A, US3913605A
InventorsWard Irving A
Original AssigneeWard Irving A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tub spout assembly
US 3913605 A
Abstract
An improved tub spout assembly is disclosed having a tub outlet and a side tube adapted to be attached to a hand-held spray unit. A diverter valve in the spout assembly is operable to cause water to discharge either from the tub outlet or hand spray unit. The side tube projects into a conduit within the assembly and has an inner end face shaped to deflect water flowing in the conduit over and past the inlet orifice of the side tube when the diverter valve is positioned to cause outflow through the tub outlet.
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Description  (OCR text may contain errors)

United States Patent Appl. No.: 449,949

U.S. Cl. 137/119; 4/145; 137/467 Int. C1. F16K 1/00 Field'of Search 4/145, 148, 192; 137/119,

12/1927 Glauber 4/148 Ward [451 Oct. 21 1975 [54] TUB SPOUT ASSEMBLY 3,012,251 12/1961 Fife 137/597 x [76] Inventor: Irving A. ward, 2709 La Cuesta 3,656,503 4/1972 Ward 137/119 X .iz Helghts Cahf' Primary Examiner-Robert G. Nilson Attorney, Agent, or FirmFraser and Bogucki {22] Filed: Mar. 11, 1974 5 7 1 ABSTRACT 12 Claims, 4 Drawing Figures l no US. Patent Oct. 21, 1975 3,913,605

T-UB srour ASSEMBLY This "invention relates generally to an improved tubspoutassembly' having a'tub outlet, a-hand spray unit outlet and adiverter valve forsele'ctively causing the waterto flow through. one or theother of said:outlets.-

A: primaryliobject of. the present invention is to proi vide a-tub spoutassemblyfor usei'with'ahand spray unit in which a single valve in the tub spout, typically in the tub outlet portion:thereof,-is used to select the outflow path. 6. I h r Another object of the invention is to provide aztub spout assembly of the type described .in whichno shutoff valve is required in the handheld spray unit, yet in which water rise in the spray unit hose is mi nimized during outflow through thetub outlet. t

FIG. 1-isaside elevation view, partly insection, of a tub spout assembly in accordance with. the presentin- FIG. 2 is acrosssection view of tl'ie assem at Fro. 1 as seen along the plane 2-2 transverse-of the .longitu 1 dinal axiso f the assemblyof FIG, 1; i

RIG. 3 is a cross-section view ,of a portion of at axis of-thea ssernbly; and,

4 is a cr,os ssection view tof the tub, outletportion ssembly of P16. 1. A 1

DETAILEDDESCRIPTION OF THE PREFERRED EMBODIMENT u.s. Pat. No. 3,656,503 issued Apr. 13,1972 to the inventor herein is incorporated by ,reference for background purposes and for its showing of a tub spout di verter valve of the type which maybe utilized herein.

Turning now Ito'thetdrawin gs, there is shown a tub spout assembly 10 adapted to be threadedly secured to an existing pipe nipple 12 projecti ng from the wall l 4. For purposes of facilitating the description of the assembly .10 and toprovide a reference, the assembly 10 may beivi ewed as having a longitudinal axis l6perpendiclulartothe wall 14 and forming an extension of the longitudinal, central axis of the nipple 12. r

The assembly lo includes a spouthousing 18 of conventional shape having an internal, transverse partition ZOdefini ngat one end of'the housing a chamber 22 having a tub discharge opening or outlet 24. The chamberi22jencloses a divertervalve 26 which'ma'y take the form of that disclosed in the aforementioned patent.

Briefly, the diverter valve 26 includes a ring member 28 secured in press fit relation to the wall of the chamber 20. The ring member 28 has an inwardly directed flange 30 defining a central aperture 32. The flange 30 functions as a'diverter valve seat as willbe subsequently described in greater detail.

A post 34 extends through the central aperture 32 and is fastened at one end to the spout housingd'by screw threads 36. Ribs 38 centerthefpost 34 within the central aperture and reduce swirling of the water stream exiting through the tub outlet 24. The lower end 1 of the post 34 has a circumferential groove 40 retaining a flexible, washer-shaped seal 42 which niay be "formed of synthetic rubbe'r such as'a Nitrile compound.

The post 34 includes a vertically slidable stern-44 terminating at its upper end in an enlarged knob 46 which includes within a recess thereof a weight 48 for biasing v u the as sembly qf-lFlG 1 as seen along (a plane including the;

the stem '44 'downwardly.'At the opposite end of the stem 44 is -abifurcat'ed' tip defined by an axial slot 50 i and having about its outer surface an-annular groove The post 34 further includes a cup 60 retained by the groove 52. Thecup 60 includes a bottom Wall 62 havingdrain holes-64 and a generally cylindrical side wall 66 defining on the interior shoulder 68. 1 t a The 'uppercircumferential margin'of the cylindrical wall 66 is bent to define an inwardly directed annular lip 70 which, in the open position of the diverter valve as shown inFlGQl, rests against the washer seal 42. In 1 the open position, water is free to pass through the aperture 32 in-the flange 30, about and between the ribs- 38 and'out through the tub-'outlet24xln this position of the valveyaswill be more fully described below,

water flows solely from the tub outlet 24 1 The internal partition 20 'has athr'eaded'opening for receiving a plastic adapter conduit 82vvhich extends along the longitudinal axis 16 and includes at its rearextremity anou'twardly extending flange 84 the The adapter conduit'82 has signed for engagement by corresponding splines on an installation tool (not shown) adapted to be inserted into the conduit 82 frornthe flanged end thereof;

The tub spoutassembly 10 of the present invention further includes a plastic side tube 96 for coupling the spout assembly-to a hand spray unit (not shown). The sidetube 96 has an innerportion'98 projecting into the bore 86 generally across a diameter thereof and an outer portion 100 including means, in the form ofexternal threads 102, for'coupling the tube 96 to ahand spray unit hose fitting 104 connected'to the hand spray unit hose 106.2The threadedportion 102 of theside tube 96 is canted forwardly so that clearance between the'spray hose -l06'and the rim of the bathtub is'assured.

The side tube 96 passes through anaperture in the spout housing-J18 and is retained by a sleeve 112 protruding from and formed integral with the adapter conduit 82. Axially directed keyways ll4 formedin the inner wall of the sleeve 112 receive corresponding keys 116 projecting from the outer surface ofthe side tube 96 to thereby fix the orientation of the side tube relative to the adapter conduit; a

To facilitate installation of the side tube 96, the male threads at the forward end of the adapter conduit 82 are designed so that when a snug, watertightfit is obtained as the adapter conduit is threaded into place, the sleeve 112willb'e 'in alignment with the aperture 110 in the spouthousing. Suitable adhesive is applied to the side tube 96" which is then inserted through the .aperture 110into the sleeve 112 and advanced until the keys 116 engage the ends of the keyways 114. This au' tomatically" insures the properorientation of the side tube 96 relative to the adapter conduit 82 and spout;

surfacethereof a sealing internal splines 90 d e-vi housing 18 and determines the extent of its projection into the bore 86. It will also be noted, making reference especially to FIG. 2, that the side tube 96 is angularly displaced from the vertical to minimize interference between the hand spray unit hose 106 and the water discharging from the tub spout outlet 24.

The side tube 96 has an internal passageway 120 leading from an inlet orifice 122 of the side tube. The tube 96 moreover has an inlet end face 124 which is shaped so as to deflect around the inlet orifice water flowing from the pipe nipple 12 to the tube outlet 24.

More specifically, the inlet end face 124 is arched or domed and includes a sloping rear or upstream portion 126 (closest to the pipe nipple 12) which diverges from the longitudinal axis 16 in the direction of water flow. An oppositely sloping forward or downstream portion 128 of the inlet end face 124 includes substantially all of the inlet orifice and converges with the longitudinal axis 16 in the direction of water flow.

By sloping the upstream portion 126 of the side tube inlet face 124 as described, the water is deflected away from the inlet orifice 122 so that it flows past the orifice 122 and not into it. The opposite slope of the downstream portion 128 of the inlet face 124 enhances this effect. It is believed that during intermediate rates of water flow, some aspiration occurs on account of the, Bernoulli effect to. further aid in preventing outflow.

through the'side tube .96 but this is believed to be incidental only and does not appear to be necessary for the proper operation of the device.

When operationxof the hand spray unit is desired, the diverter valve 26 is closed by pulling up on the knob 46 thereby raising the cup 60 until the lip 70 contacts the seat 30 as best shown in FIG. 4. Water flowing into the diverter valve chamber 22 enters the cup 60 and exerts an upward force on the inside of the lip 70 which force is sufficient to hold the lip 70 against the seat 30 thereby blocking the flow of water between the cup and the seat. In addition, as shown in FIG. 4, the water pressure causes the washer-shaped seal 42 to flex downwardly into contact with the shoulder 68 to seal off the drain holes 64.-Thus, no water is able to pass through the diverter valve assembly 26 to the tub outlet 24, all the water thereby being compelled to pass through the side tube 96 and out through the hand spray unit. The small amount of back pressure produced by the hand spray unitis enough to keep the diverter valve closed- The water pressure within the diverter valve 26 is substantially reduced when the main faucets (not shown) are turned off and under this reduced pressure the washer seal 42 flexes upwardly breaking the seal and permitting water to seep between the washer seal 42 and the shoulder 68 and. drain through the holes 64 in the bottom of the cup 60. When the pressure drops below a predetermined level because of the drainage of water in the manner described, the upward pressure on the lip 70 will be insufficient to overcome the weight of the cup 60, stem 44 and weight 48. At this point the cup 60 drops away from the seat 30 thereby opening the diverter valve.

It will be seen from the foregoing that the hand spray unit does not need its own shutoff valve although such valve could be present. There is a disadvantage in the latter case, however,'in that two valves, namely, the hand spray unit valve and the diverter valve, would have to be manipulated in order to use the hand spray unit.

In accordance with one specific, practical example of the invention, the conduit bore 86 is slightly tapered, the smaller, forward end having a diameter of about 0.5 inch and the diameter just downstream of the internal threads at the flanged end being about 0.7 inch. The distance d (FIG; 3), that is, the gap between the peak of the domed inlet face 124 and the closest point along the wall of the bore 86, is about 0.045 inch. The outside diameter of the side tube is about 0.45 inch thereby forming a substantial constriction within the bore 86 which speeds up considerably the flow of water about the side tube 96. This is a desirablecondition which aids the deflecting action of the upstream slope 126 of the inlet face 124.

For side tube outside diameters and adapter conduit bore diameters different than those mentioned, the distance d may be expected to change accordingly in order to optimize the operation of the device, that is, to minimize water rise in the hose 106 when the diverter valve 26 is in the tub spout position. It appears that in all practical cases, however, the side tube 96 will project into the bore a distance substantially greater than the bore radius.

The cross-sectional flow area in the conduit 82 defined by the bore 86 and the side tube 96, that is, the flow area at the section seen in FIG. 2, is slightly less than the area of the central aperture 32. In the absence of such flow area relationship, the back pressure cre* ated at the aperture 32, especially at higher flow'rates, would tend to divert water to the hand spray unit. In other words, the deflecting action of the inlet end face 124 would tend to be defeated.

What is claimed is:

l. A spout assembly comprising:

a spout housing having a discharge opening;

a diverter valve mounted within the spout housing;

a conduit mounted within the spout housing for conducting water from a water supply pipe to the diverter valve, said conduit having a bore; tube projecting into the bore of the conduit, the tube being disposed generally transverse of the direction of flow in the conduit, the tube having an inlet end within the bore, the inlet end having an inlet orifice and being shaped to deflect water past the inlet orifice and thereby minimize entry thereof into the inlet orifice during flow of water through the diverter valve, the diverter valve being selectively operable to prevent water outflow from the discharge opening to thereby divert the water to flow out through the tube.

2. An assembly, as defined in claim 1, in which:

the inlet end of the tube is sloped in the direction of water flow to deflect the water when the diverter valve is positioned for outflow through the discharge opening.

3. An assembly, as defined in claim 1, in which:

the tube projects into the bore a distance greater than the radius of the bore. 7 r 4. An assembly, as defined in claim 1, in which: the diverter valve includes means defining an aperture through which the water flows to the discharge opening, the flow area of the aperture being larger a manually operable diverter valve mounted within the spout housing adjacent the tub outlet;

a conduit mounted in the spout housing, the conduit having an inlet portion adapted to be coupled to a water supply pipe and a bore bringing into communication the inlet portion of the conduit and the diverter valve, the diverter valve being selectively operable to break communication between the inlet portion of the conduit and the tub outlet; and

a side tube attached to the conduit, said side tube having: an inlet orifice; an outer portion extending through an opening in the spout housing and adapted for connection to a hand spray hose; and an inner portion projecting into the bore of the conduit a distance substantially greater than the radius of the bore, the inner portion terminating at an inlet end surface about the inlet orifice, the portion of the inlet end surface upstream of the inlet orifice being sloped to deflect water past the inlet orifice during flow of water from the inlet portion of the conduit to the tub outlet thereby minimizing the entry of water into the inlet orifice, closing of the diverter valve causing the water to flow through the side tube. 6. A tub spout, as defined in claim 5, in which: the portion of the inlet end surface including substantially all of the inlet orifice is sloped oppositely to the slope of the upstream portion of the inlet end surface to aid in minimizing the entry of water when the diverter valve is positioned for outflow through the tub outlet. 7. A tub spout, as defined in claim 5, in which:

the outer portion of the side tube includes a threaded portion for receiving the hand spray hose, the threaded portion being canted toward the tub outlet for providing clearance between the hand spray hose and the tub.

8. A tub spout, as defined in claim 5, in which:

the side tube is angularly displaced relative to the direction of water outflow from the tub outlet to minimize interference between the hand spray hose and water flow from the tub outlet.

9. A tub spout, as defined in claim 5, in which:

the diverter valve includes means defining an aperture through which the water flows to the tub outlet, the flow area of the aperture being larger than the smallest flow area defined by the side tube and the bore of the conduit.

10. A tub spout, as defined in claim 5, in which:

the conduit includes at the inlet portion thereof an outwardly extending flange having an outer periphery closely conforming to the contour of the interior wall of the spout housing.

11. A tub spout, as defined in claim 5, in which:

the conduit is threadedly secured, at the end opposite the inlet portion, to the spout housing and the bore of the conduit includes longitudinally extending spline means adapted to be engaged to effect installation of the conduit.

12. A tub spout, as defined in claim 5, in which:

the conduit includes a radially extending sleeve for receiving the side tube, the side tube being keyed to the sleeve to affixjts position relative to the conduit.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1316739 *May 12, 1917Sep 23, 1919Curtainless Shower companyClosure for shower-bath attachments
US1527135 *Jun 20, 1924Feb 17, 1925Alfred PietzoldEjector
US1653956 *Jun 23, 1926Dec 27, 1927 Combination spottt and spray fixture
US3012251 *Aug 16, 1957Dec 12, 1961 Tub and shower fixtures
US3656503 *May 11, 1970Apr 18, 1972Irving A WardFluid control valve
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4116210 *Sep 10, 1976Sep 26, 1978Zin-Plas CorporationDiverter spout assembly
US5279005 *May 10, 1993Jan 18, 1994Modern Faucet Mfg. Co.Tub spout
US6175972 *Mar 11, 1998Jan 23, 2001Resources Conservation, Inc.Kit for installing bath spouts
US6581904 *Feb 9, 2001Jun 24, 2003Denso CorporationSolenoid valve
US6840267Jun 27, 2003Jan 11, 2005Nch CorporationConnection kit for a bath spout
US7082626Jan 17, 2003Aug 1, 2006Newfrey LlcDiverter assembly for roman tub
US7373674Dec 30, 2004May 20, 2008Sioux Chief Mfg. Co., IncTub spout installation system
US7578309May 19, 2005Aug 25, 2009Silvano BredaUniversal kinetic diverting spout post assembly
US8251090 *Apr 7, 2009Aug 28, 2012Ing Tzon Co., Ltd.Faucet having a pressure release function
US20100252133 *Apr 7, 2009Oct 7, 2010Mei-Fen LinFaucet Having A Pressure Release Function
US20120211108 *Feb 21, 2011Aug 23, 2012Alexander Yeh Industry Co., Ltd.Faucet assembly
EP1696160A2Jun 1, 2005Aug 30, 2006Silvano BredaUniversal kinetic diverting spout post assembly
Classifications
U.S. Classification137/467, 4/615
International ClassificationF16K1/00, E03C1/042
Cooperative ClassificationF16K19/00, E03C1/042
European ClassificationF16K19/00, E03C1/042