Патент USA US2405849код для вставки
Aug. 13, 1946. M, D, RIKER 2,405,849 OVERFLOW DEVICE FOR LIQUID CONTAINERS . Filed NOV. 13, 1943 /3—— \A ‘\% 1“ fq 1 _ ' \1 flq. 3 MALCOLM 0. mask BY . v - 1% ‘ . Patented Aug. 13, 1946 2,405,849 :IUNITED STATES PATENT "OFFICE OVERFLOW DEVICE FOR LIQUID "CONTAINERS .Malcolm D. Biker, Detroit; Mich. Application November 13,1943, ‘Serial’ N0.'l51'0;2-23 4 Claims. (c1. v4--.,206> ' 1 ‘This invention relates to~over?ow devices for inga variable level :of - liquid-below the usual- out liquid containers, the principal Object being to ?let. Thus'int atibath tubgfor instance, with-a con ‘provide a 'means’associate’d withthe container whereby a desired-depth of liquid may be main .stant in?owcofwatergrprovidemeans 'for a con tained therein under =a-constant ?ow of liquid ‘ thereto. The particular ‘function of the device is to dis charge'the liquid from the surface of the ‘body thereof in the. container'to the outlet and by use ‘of the~device in a bath-tub the scum which ac cumulates on the surface of the waterwithin 'a :stant.over?owabelowrthe level of the usual outlet tindicated at’rZ. .f-I‘hetdeviceconsists of a'flexible ‘shield .4; which-may be formediofirubber or- other ?exible material, asifor 'useYin-E a'bath'tub, having ‘a’ peripheral-flange I5 'thereabout». and longitudinal "ribs-*6‘onitheiouter faceof ,thezbody to contact :the ‘end'rsurface ‘off-the" tub-adjacent‘ the outlet, The -: ribs*6~-,and>:liange '5 provide» channels “open bath tub5 is, in my improvedapparatus, constantly at the upper end to the interior of theltub. ZI‘he ?ange .5 extends alongthetwo-edges and the lower 5being discharged to the outlet an'di'thus, with’the inlet valve open to provide a desired volume offflow end wof the device, .-as indicated .in Figs. 1 ~ and ,2, per unit of time thereinto, a constant level of 15 and-.the lower horizontal portion of the-body ‘of liquid is maintained in the tub. thetdevicecloses ,theoutlet to thebodyso that the *Whilel have shown a‘bath tubiin the drawing, only liquid that “CanS?OW‘PtOYthB outletis liquid *my‘improved over?ow device would readily vfunc ‘thatnver?ows .the upper. end of ‘the shield into the tion with other'types-of containers wherein the 1 space between thebody=4nand~ the inner-surface of ?oating‘matter that ‘may be introduced‘ with fluid 20 - the-tub orcontain'er. ~ into the container is constantly discharged to the Thus, with "water :?owing :into »..the tub during the time a personiis bathing-thezscumondirt that outlet. rises-to the surtaceeofthealiquid is-being con These‘and other features an‘dobjects‘o'f-the in ' vention-are‘hereinafter more fully<'described and - stantly :discharged ‘to ».-the- outletand va constant claimed and shown in-‘preferred’form ini‘the‘ac 'companying drawing in which :level- of practically clear : liquid is ‘maintained -in Fig. 1- is "a ‘sectional elevation of the ‘discharge end of a container such as a bathtub ‘showing- my improved over?ow‘ device. Fig; 2 is a plan view‘ thereof. ‘the tub. ' ~ ' The ‘outlet ?tting,'aindicated .atB. Fig. .1 ,and at =3a Fig. @3,>.may~be :of anyv desired form as this invention is not-‘- .eon?n-edtto the-form of theusual 34.) bath ‘tub outlet ?ttingor the similar ?ttings of Fig. ‘3‘is-a vertical section‘ of a portion of'the container showing an alternative form of the ~ other liquid containers in ‘which, during its use, za'constantwsupplyf of liquid-containing a material overflow means. that would float .to the surface is required to. be vdischarged while maintaining aconstant level in Fig. 4‘is a plan view- of the “form o‘fthe over c?ow means shown in Figf‘S. ' the container. Fig. “5 is an enlarged cross v‘section taken ‘on line 5-5 of Fig. '3. ‘ In many liquid containers wherein material in‘a ‘?uid form containing v?oating particles is dis charged or in containers such as bathtubs where in a scum tends to accumulate on the surface of the liquid, it is desirable in either case to provide - _ vThe shield-4 includingithe integralzribs .6 1s preferablyformed» of rubber, or‘ other ?exible ma terial of ' theisame structural features may beem .ployed. Thus-theshield maybe variedin posi ,tioneasindicated- bydotted- lines aland .al to pro <videi~forxa 'greateror-lesser height Of- liquid-110 be :maintained‘ in the body; of the containeror tub. In the alternative form of the invention found in Figs. 3, 4 and 5 the tub or receptacle Ia has an in the container. 45 outlet 3a which extends into and its lower ends spaced from an enclosing ?tting 9 to which the Inthe form of the invention shown in Fig, 1 outlet conduit II] is connected. It is not material the container I has the usual outlet 2 adjacent however to this invention what speci?c structural the top at one end of the container and the out form of outlet is utilized. It is desirable, how let as indicated at 3 in the bottom of the tub or ever, in the structure shown in Fig. 2 that a cap container. With liquid flowing into the tub from member I I be provided spaced from the bottom of an inlet not here shown the tub could ?ll to the the recess I2 to sustain the ?exible shield I3 from outlet indicated at 2. In order to maintain the being forced into closing relationship with the liquid level below the outlet and in order that for a constant discharge of the contaminated liquid accumulating at the surface of the liquid foreign material rising to the surface of the liquid may be discharged I provide means for maintain~ outlet member or conduit 3a. _ ‘ The shield I3 in the form of the invention 2,405,849 4 3 shown in Fig. 3 is a ?at piece of material of ?ex ible character while the end of the body of the container is provided with ribs 1 which spaces the vertical face of the shield from contact with the wall I 4 of the container. Thus the same function ‘ is secured in that a space or a series of spaces may be provided between the shield and the wall [4 of the container, as indicated at 13a in Fig. 5, through which water may over?ow to the outlet. The member 13a of Fig. 3 may be varied in posi tion after the manner suggested in the form shown in Fig. 1 to vary the depth of liquid in the bath tub or other container. tom to discharge to the tub outlet, the arrange ment permitting adjustment of the shield to vary the height of the open end of the passageways from the bottom of the tub, thereby providing for continual flow of liquid to the tub from the inlet without materially varying the level of the liquid in the tub. 2. An over?ow device for a liquid container having side and end walls and a bottom having an 10 outlet, comprising a ?exible rubber shield hav ' While I have shown the shield or wall of the container as having a series of grooves providing for ?ow of liquid from the surface thereof in the container to the outlet, it is'pointed out that the contacting surface of one or the other of the ele ments may be shaped to provide a single groove of the desired cross sectional area and while I have described a ?exible shield the invention is not con?ned to a shield having ?exibility. In either case the hydrostatic pressure of the liquid in the container maintains the shield in position. It is further to be understood that the groove or 25 grooves preferably have a cross sectional area ing a series of parallel ribs on one surface thereof ‘providing a means for spacing the body of the shield from a wall and the bottom of the con tainer adjacent the outlet, said ribs providing pas sageways open to the interior of the container at one end only and to the outlet, the ?exibility of the shield permitting the same to be adjusted in position longitudinally of the bottom and end wall of‘the container to vary the height of the open end of the passageway from the bottom of the container and otherwise prevent ?ow of liquid from the container to the outlet. 3. An over?ow device for a liquid container hav_ ing side and end walls and a bottom having an outlet, comprising a shield formed of a ?at sheet of material having a passageway open at one end greater than that of the inlet. to receive liquid from the surface of the body thereinto. thereby vary the position of the upper end of the shield relative to the bottom of the container, and thereof in the container and at the opposite end Either form of the invention serves the same opening to the outlet, the shield being ?exible Der purposes; that is to provide for a continuous ?ow of water of liquid from the surface thereof in a 30 mitting manual movement thereof along a wall of the body and bottom thereof about the outlet to container by reason of the continued ?ow of liquid » The invention is thus serviceable in many in stances to not only maintain a desired level of being maintained in adjusted position by the hy— liquid in a container but to cause a continued 35 drostatic pressure of the liquid in the container. 4. An over?ow device for a bath tub having a main outlet in its bottom adjacent one end and an over?ow outlet in said end adjacent the top, remaining in the'body of the tub or container is comprising a comparatively thin ?exible shield of in a practically pure state during the use of the device irrespective of the fact that extraneous ma 40 a desired width positionable in the tub to seal the outlet in the bottom of the tub and to extend up terial of less speci?c gravity may be introduced wardly along said end of the tub and movable to into the liquidbody during its use. vary the height of the upper end of the shield From the foregoing description it is believed above the tub bottom, the surface of one of the‘ evident that the features and objects of the inven flow of liquid from the surface of the body there— of to the outlet. By this arrangement the liquid tion are attained by the structural arrangement 45 members facing the other having parallel ribs spacing the shield from both the said end and and relationship of the various parts and that bottom of the tub and providing a series of par various changes may be made therein without de allel passageways open at the upper end of the parting from the spirit and scope of the invention shield providing for ?ow of liquid from the tub as set forth in the appended claims. 50 to the outlet, the ?exibility of the shield permit Having thus fully described my invention, its ting variation in the position of the upper end utility and mode of operation, what I claim and thereof relative to the bottom of the tub and per desire to secure by Letters Patent of the United mitting longitudinal movement thereof along the States is: . ~ 1. An over?ow device for a bath tub or other . end wall and bottom of the tub to position the liquid container having a main outlet in its bot 55 upper open end of the passageways at the de sired height above the tub bottom to thereby pro tom adjacent one wall thereof and an over?ow vide for a predetermined liquid level in the tub outlet in the said wall adjacent’ the top, compris and permitting a continual flow of liquid'to the ing a ?exible shield formed of a comparatively tube without material variation in the level of ?at sheet of material provided with parallel ribs on one surface thereof and providing, when the 60 the liquid therein. parts are in position, passageways for liquid open at the upper end to receive liquid and at the bot ' . - MALCOLM D. RIKER.