Патент USA US2392731код для вставки
Jan. 8, 1946. M. FOX 2,392,731 PAINT MIXER . Filed Dec. 7, 1945 INVENTOR. M ITC H E L L Fox XMM A TTORNEY. 2,392,731; Patented Jan. 8, 1946 UNITED STATES PATENT OFFlCE' gesznsi Mitchell. PAINT Fox, Stafford, Ea Application December 7, 1943, Serial N0-v 513,217 5 mains (01. 259-107) ent invention installed for, use in a container for This invention relates generally to agitators and more particularly to~ an improved construe; paint or the like; ' the container showing'the agitator element in nection with containers ‘such as are “ employed in‘ the shipment, storage "and dispensation of paint and other viscous'liguids, the agitator of the present invention being "intended for use pri marily with, although not necessarily limited‘to, containers of mgderate size, such as those having ' ' Figure 21s a vertical ‘sectional view through tier! of- agitator or stirring device flor- use in con side elevation; ' ' > ' Fligure 3 is a transverse sectional view of- the agitator element as’ taken on the line 3:3 of Figure 2; ‘ ' ' ' ' Figures 4 and 5 are vertical sectional views The successful handling of viscous liquids'such taken respectively on‘ the iines‘llr? and 5:5 Oi Figure 2; and as paints and the like, when storedv in relatively large receptacles, such as ?ve gallon receptacles, has“ presented serious dif?culties due to the fact tainer, ‘partly broken away, showing the agitator that" s the mixture‘settles, a sediment is formed vertical or axial displacement during rotation a capacity of ?ve gallons. ' ' 10 Figure 6 is a 'side elevational view of a. C09: elementof- the present invention installed in-the container and the means for securing it against in the'bottom of the container which must be brought back into suspension if the mixture is to serve its intended purposes in themost e?lca ciimi's menner- ‘ thereof. installed for use in a container [0 of the type customarilyiemployed‘ for paints or other such invention to‘ provide an‘ inexpensive and yet heavy bodied liquids; this type of container being generally"provided‘withan annular lip or head or H agitator at the upper‘ 'of theedge present thereof. invention, The mixing designated generally by the, reference numeral 12, essentially consists of‘ an, agitator ‘element L3 preferably highly efficient ‘agitator which is adapted to be removably installed, at will, within the‘container without necessitating the used: any special tools or any alteration oi the container ‘structure. ' A vfurther object of the present‘invention is be constructed substantially entirely of sheet metal and which, therefore, may be produced .7 that the agitator of the present invention is shown ’ I_ is among the principal vobjects of the present to provide an agitator of such design thatit 'may ’ Referring now to the drawing, it will he observed ~ stamped out of ?at sheet metal to the upper edge of which is secured, in any, suitable manner, an ‘nexpensively by a simple stamping operation, f‘ operating handle assembly IQ for rotating the agitator element about its central vertical aids. the ‘agitatoras constructed in accordance with Referring ?rst to the agitator element I; it the present invention including means which will be noted that it is generally in the fer h operate effectively and efiioiently to insure rapid rectangular plate of such size as to be readil ac and‘uniiorm dispersion of the settled ‘sediment commodated within the container. ID, the tra s’; throughout the liquid, bod-y of the mixture. verse over-all dimension of this agitator ele ‘ Still another and'important object of the pres‘ being only, somewhat less than the dianie ent in'vev 'tion' is to provide a paint mixer having ‘ 'n agitator element which is so constructed that it ‘n61: only produces spaced'oo'ncentric zones of agitation in the ‘container within which the mixer i_ "installed _for u'sejbut also insures effective downwardboring of the agitator element into "e settled sediment in the ‘bottom of the con _, whereby to e?ectively stir "and lift the tainer sa e" for"'unif_orrn dispersion throughout the time 6f the mixture’? ' " ‘ ‘ 'Othei‘ objects and "advantages of the present 40 H the container 10, while its over-e11. height so, 8 what exceeds half the effective depth of the con, t'ainer. As most clearly appears in Eigures 2 tov 5i, the’plate of which the agitator element l_'§r is formed is so formed as to. pro, 'de it with a plug 45 rality of laterally spaced ve, allyv extending blades or vanes l5, l6”, I1, l8’, l9, and my, the vanes l5 and 211 so formed along the illliwgite veruc ‘lly extending edges of the plate helps‘ 'op'pos télif turned with respect to the flat plane or the main body-of the plate‘. The vanes l6 and I1, which are invention-‘and? economies’effeeted incident to the next wardly adjacent turned to in the the outermQSt same direcvanes. ‘on as15,eaare van 99 @1051, ‘2mg operation of'theagitator con‘ élz ,0 q in atséor'sljeleaévitt and embcdvieg‘tkie 59 l5,whilethe vanes ‘id, principles" of the present in option will” appear ja'cent the‘ outermost vane_,, 2Q, _l are. outwardly e hereinafter, it; beingunders'toodthat ' , , ‘substantially in’ the cam -. recoil" "as native ar turned in the same general direction as the latter. By reason of this construction, the. agitator le nient 13 is respectively provided at its apposite augment or the 1) Its as hereinafter were, 5,5 sides with OpDositely presenting channels. ‘é’;l ‘and as? mine drawing and as finally mated out in tiieappendeu claims. " ‘ " ’ ‘£1,416.11. l5. illus 22, one of these channels 2|‘ being formed is vth outwardly diverging pair, of vanes. 15, @1191 the other channel 21193: the outwardlydiv an 'lzf'venes l9v and-10. qepesitela tamed ’ 2 2,392,731 , vanes‘ I1 and I8, disposed between the oppositely presenting channels 2| and 22 and to either side of the central vertical axis of rotation of the agitator - element, constitute independent stirring blades forthe unit. Where the agitator element | 3 is formed of a sheet metal stamping,‘the sev function as means for sweeping through the mass of material to be agitated, also to reenforce and impart rigidity to the agitator element. 'To fur ther strengthen and rigidify the agitator element its upper edge is laterally turned toprovide a horizontally extending ?ange 26a to which is eral blades or vanes | 5, l6, H, | 8, l9 and 20 are - ' secured, in any suitable manner, the operating preferably formed as integral elements by press handle assembly designated generally by the ing them out of the normal ?at plane of the sheet reference , numeral I4; This handle assembly metal of which the agitator element is formed, 10 preferably includes a vertically extending post or thus‘ providing a pair of vertically extending rel shaft 21- to the upper end of which is suitably ' atively large openings 23 and'24 spaced laterally secured a crankihandle 28, the lower end of the to either side of the central axis of rotation of , the agitator. " shaft 21 being rigidly secured to a ?at base plate dicated by the‘ arrow, and it will be apparent that as by welding or otherwise, to the ?ange 263 29 which in turn is adapted to be secured, as by As is indicated most clearly in Figure 3, the 15 the bolts 30 or otherwise, to the ?ange2|iil of agitator unit is adapted to be vrotated about‘ its the agitator element. If desired, the lower end central vertical axis in the clockwise direction in of. the ‘vertical shaft 21 may be directly secured, when the agitator unit is so'rotated, the channels . without the interposition of the plate 29, it, being 2| and, 22 will sweep through the’ outer portion 20 merely necessary that the shaft 21 be so located of the material contained in the container l0, whilethe intermediate blades l1 and I8 will ' sweep through the central portion of the mate ' rial, thereby setting up in the container concen tric zones of agitation in the material undergoing agitation; ' " ‘ ‘ . '7 In order to facilitate this agitation and insure centrally of. the agitator element -| 3 that the .central vertical axis of rotation of the latter closely approximates the vertical axis of the shaft. .Fitted loosely on the shaft 21 is a bearing sleve 3|‘ centrally secured to a transversely ex tending strap member 32 to provide, in e?fect, a pair oi'oppositely extending. arms 3211 and 32b, uniform dispersion of the solids throughout the . the free ends of which are upwardly o?s‘et, as at liquid body of the mixture,» the agitator element 33, and equipped with hook-shaped bolts >34 | 3, in addition'to the large openings 23 and 24, 30 whereby to ?rmly secure the opposite ends of the which are formed between the several pairs of strap member to the annular bead or rim’ H agitator vanes or blades, is additionally provided ' of the containerl 0, as shown in Figure 3. When with'a series of smaller openings 25 formediin this strap member is properly clamped in posi groups respectively disposed between each pair‘ of tion extending diametrically across the top of the f the said blades or vanes. These smaller openings i. container, the sleeve l4 carried thereby provides are arranged in vertically spaced relation to form a substantial vertical bearing within which the a given group thereof, it being noted that one shaft 21 is free to rotate and shift axially, thus such" group of vertically spaced‘ openings '25 is permitting the agitator element l3 to be raised provided in the base of ‘the channel 2| formed by , , and lowered during rotation thereof and so mak_ . the pair of blades l5 and |6,-the second group‘of so ing it possible to more effectively attack and stir thesevertically spaced openings is provided ‘in up the solid mass settled in the bottom of the the base of the channel 22 formed'byrthe blades 19 and 20, while the thirdgroup of vertically Preferably, the shaft‘21 is providedwith an spaced, openings is formed in the immediate re annular groove 35 into which is adaptedto be ‘gionof the verticalaxis of rotation of the agitator 45 projected a set screw 36 for holding theagitator element, vthat'is, between the intermediate pair of element I3 ?xed-against axial displacement while. oppositely turnediblades or vanes l1 and I8. permitting it to be freely rotated. This set screw container. ‘ _ . - '- Preferably, these, openings '25 are formed by so 36 may be projected through one or the other of cutting and stamping the sheet‘ material as to several vertically spaced threaded holes .31 tapped ‘a provide struck-out tabs or tongue-like elements 50 transversely through the wall of the sleeve 3| so' 26 which'extend angularly with respect to the as to secure the agitator. for'rotation at various plane of the main flat body portion of the ‘agi adjusted elevations, as, for example, inFigure 6, tator element. In‘this connection, it is-important wherein the agitator is shown supported for to observe that these struck-out tabs 26 are all rotation in its uppermost’ elevated position. J7 similarly inclined upwardly and outwardly from If desired, the agitator l3 may be provided with their points of attachment to the main body of an auxiliary stirrer blade 38 which is loosely 7 the agitator element, and that the group of tabs secured to the bottom thereof by a headed pin 39, immediately associated with the channel 2| the blade 38'being longitudinally :slotted, as; at ,formed by the blades l5 and I6 project in .ODDO- 1 -, 4!), to permit. it to be extendedlaterally to one site direction from the said'blades, or, in other side of the agitator for/.eifectively sweeping words, ‘rearwardly of the said channel 2|. Sim through the chime corners of the container and ilarly, the group of tabs immediately associated stirring up such settled pigment as might other with the channel 22 formed-by the pair of vanes wise remain embedded therein, Also, this auxil v V g "60 or blades l9 and 20 project'in a-direction oppo-‘ ~65 ' sitely from the latter or rearwardly'of the chan ' nel, 2,2. The group of tabs immediately associated with the intermediate pair of blades I’! and I8 'may project in either direction or they may be dispensed with ‘entirely, thereby leaving the cen tral ?at part of the agitator element with a plu rality of unrestricted apertures of any suitable “size, shape and number. The several vanes or blades l 5 to 20, extending as they do vertically of the main plate of- the] agitator, serve, in addition to their'principal 75 iary blade 38 serves as a means for increasing the effectiveness of the agitator unit when used in» over-size containers. 'It will be noted that the auxiliary blade is loosely held in a generally horizontal position, as shown in Figure 3, by vir tue, of the engagement of the upper” edge 4|, thereof by the lower ends of the blades or vanes l8 and 20 which project across the plane of the blade38. " I V ‘ ‘ _ j In the operation of the agitator, after the same has been secured tothecontainer as shownand described, and the set screw 36~withdrawnso as 3 2,392,731 to permit the shaft 21 to freely shift axially within its bearing sleeve 3|, the agitator element I3 is lowered into the material to be mixed so being provided with a pair of oppositely present ing channels respectively constituting the oppo site side marginal portions of the agitator, the that its lower edge rests upon or is disposed somewhat beneath the surface of the solid mate rial settled in the bottom of the container. Thereupon, upon rotation of the operating handle erally spaced sections respectively constituting side walls of each channel being struck out of the main body member to provide a plurality of lat the basal walls of said channels, said basal walls of the channels being each provided with a series of vertically spaced restricted apertures. and so gradually scrapes away and stirs up the 2. In an agitator of the character de?ned in 10 settled sediment and starts it back into suspen 28, the ‘agitator element I3 is caused to- rotate sion. Preferably, when it is intended to initially attack the sedimentation in the bottom of the container, the operator bears down upon the handle simultaneously as he effects rotation of claim 1 wherein the said vertically spaced aper tures each have associated therewith a tab pro J'ecting from the said basal wall portion of the channel and rearwardly thereof. 3. An agitator adapted to be removably in the agitator about its central axis of rotation, 16 serted within a‘ container for paint or other such thereby exerting a downward cutting pressure material to be agitated comprising a substantially which acts to quickly and expeditiously attack ?at main body member adapted for rotation about and disperse the sediment settled in the bottom a vertical axis lying approximately in the plane of the drum. As this solid material is loosened of said body member, said body member being 20 by the cutting action of the several vertically provided with a pair of integral ?anges projecting extending blades or vanes of the agitator ele outwardly of the ?at plane of said body member ment I3, it is caused to rise in the container by to form a vertically disposed channel presenting the swirling action of the agitator element and generally in the direction of rotation of the agi is forced through and so dispersed by the vari tator, the base portion of said channel being pro ous openings 23, 24 and 25 formed in the latter. vided with a series of vertically spaced apertures The several inclined tabs or tongue-like elements through which the material, swept into the chan 26 greatly facilitate this dispersion of the solid nel upon rotation of the agitator, is discharged. materials throughout the liquid body of the mix 4. An agitator adapted to be removably in ture and, due to their inclination, serve as minia serted within a container for paint or other such ture propeller elements to propel the mass ‘up material to be agitated comprising a substantially wardly as the agitator is rotated about its cen flat main body member adapted for rotation about tral axis of rotation. At the Same time, these a vertical axis lying approximately in the plane inclined tabs 26, particularly those immediately of said body member, said body member being associated with the outer channels 2| and 22 provide thrust surfaces against which the mass 35 provided with a pair of ?anges projecting out wardly of the flat plane of said body member to of the material being agitated reacts to force the form a vertically disposed channel presenting agitator downwardly toward the bottom of the generally in the direction of rotation of the agi container as it is rotated by the handle 28. In tator and having a base wall portion intercon this manner, the agitator, during rotation there of, is caused to be forced gradually downwardly 40 necting said flanges and disposed in the plane of said main body member, the base portion of said into the settled pigment from the top to the bot channel being provided with a series of vertically tom thereof, in consequence of which the settled spaced apertures through which the material, solid content of the material is rapidly and swept into the channel upon rotation of the agi effectively dispersed to render the mixture suit able for use. 45 tator, is discharged, and means operatively asso While in its preferred construction, the agitator of the present invention is constructed of sheet metal, it will be understood that it is not intended [ciated with each of said apertures for imparting an upwardly directed thrust to the material dis charged through said apertures. 5. An agitator adapted to limit it to such construction and that it may serted within a container well be made and formed of other suitable mate 50 comprising a, substantially rials, such as various plastics which lend them ber adapted for rotation selves readily to molding operations by which the agitator element 13 may be molded of such plas to be removably in for paint or the like ?at main body mem about a vertical axis lyingin the plane of said member and located centrally between its opposite edges, said body tics as a unit. Also, the several vertically ex member being provided with a pair of oppositely tending blades or vanes and the several vertically 55 presenting channels'respectively constituting the spaced tabs or tongue-like elements necessarily do not have to be formed as integral elements of opposite side marginal portions of the agitator and with a pair of reversely projecting ?anges the main plate, but instead may be separately located between said channels and respectively formed and secured thereto to provide an agi disposed to either side of the axis of rotation of tator having all of the operating characteristics 60 the agitator, the ?ange immediately adjacent of the integrally formed unit. Accordingly, it will each channel presenting in the same direction as be understood that the agitator of the present the mouth of said channel and being separated invention is susceptible of being modi?ed in ‘vari therefrom by an opening formed in the main body ous respects without departing from the general member of the agitator, the side walls of said principles or real spirit of the invention and it 65 channels and the reversely projecting flanges is accordingly intended to claim the same broadly aforesaid being all struck out of the main body as well as speci?cally as indicated by the appended member of the agitator, and the basal wall por claims. tions of each of said oppositely presenting chan What is claimed as new and useful is: nels and the portion of the body member disposed 1. An agitator adapted to be removably inserted 70 between said reversely projecting ?anges being within a container for paint or the like compris ing a substantially ?at main body member adapt ed for rotation about a vertical axis lying in the plane of said member and located centrally be tween its opposite side edges, said body member 75 each provided with a series of vertically spaced apertures. MITCHELL FOX.