Патент USA US2409953код для вставки
Oct. 22, 1946. c. A. NoTMAN 2,409,952 FOUNTAIN BRUSH Filed Deo. 17,A 1942 Il” .____,.____ Á___ ____l _. ____ . _nwENroR' Cla/'enne ?). /Yoíma/v gm» ‘ 2,409,952 Y Patented Oct. 22, 1946 UNITED STATES PATENT oFFIcE; v‘ FOUNTAIN BRUSH ` ` Clarence A. Notman, Detroit, Mich., assignor of Y one-half to Charles Bowles, Detroit, Mich; - ' Application December 17, 1942, Serial No. 469,314 2 Claims. (Cl. 15-138) l 6-64of Fig. 4 illustrating the reservoir and th This invention relates to a device for carrying a supply of substance from which small portions plunger, may, from time to time,„ be separated from the supply for use as desired. The invention is par ticularly adaptable to what may be termed a fountain brushsuch, for example, as a tooth brush. ' ` At the present time it is of paramount imp-or-` tance to prevent mouth diseases, particularly . ‘ ’ ‘ ` ` Figure '7 is a cross-sectional View taken on line 'I-T ofFig.l5. > ` ä ' ì ` ' ` Figure 8 is a cross-sectional View taken on line 8--8 ‘of Fig. 4 illustratingthev outlet passage. Figure 9 is a cross-sectional View taken on line _ s-_e of Fig. 4 showing the brush head. The brush comprises a body'or `handle portion among those in the armed forces, and while the 10 I which is hollow so as to provide therein a reser present invention is a personal or portable brush voir 2‘. A brush head 3 having suitable bristles 4 is preferably detachably connected to the handle> admirably adapted for the armed forces, the use as by means of screw-thread connection 5 so that of the device may be general among the civilian the brush head may be replaced from time to population. The_general object of the invention is to provide an article such as a tooth brush 15 time. The brush head has a small passageway 6 which may be carried by an individual and which in its stem'portion and when connected to the contains its own supply of asubstance, such as an antiseptic, and which is arranged so that small portions of the supply can be used from time to handle this passageway aligns with a passageway 'I in the handle leading from the reservoir. ' The time as desired. ` ’ y ' . It is the aim of the invention to provide a sim ple yet effective arrangement for holding the de sired substance, and from which small’portions may be ejected, without involving numerous parts or precision parts or other mechanism `liable to get out ofA order. The arrangement is provided principally for handling a liquid substance. , This liquid need not necessarily have the ilowing char acteristics of water but it should be substantially iluid so that the same will readily now under the inner end of the passageway 'I'may be shaped to 20 provide a valve seat 8. . ’ ` ’ f It will be noted that the outlet passageways 6 and 1, or at least one of them, isquite‘small in cross-sectional area and indeed this may be what is termed a capillary tube, in that the liquid in the _ reservoir will notV gravitate through the small opening due to the friction or resistance to the now of the liquid therethrough. A valve plunger Ill passes'into the reservoir through the end thereofY opposite the valve seat, 30 and this> valve plunger may be screw-threaded action of gravity. Some of the substance is segre gated from the supply and ejected from the reser in the end of the handle as shown at >I I. The valve plunger may have an enlarged knurled or voir therefor, by the displacement principle, and roughenedl head I2 by which" it may be turned, this, as will be seen as the following description and a lock nut I3 may be mounted upon its screw progresses, is accomplished ‘by >an exceedingly 35 threads. The end of the valve plunger is suit ably constructed to engage theV seat 8 and close simple but novel arrangement which may embody but a single movable element. l A tooth brush is selected for the purposeof illustrating the invention and in the drawing: the passage -I. To this Vend it may be tapered so as to provide a tapered valve member I4. V .The member I0 `has been termed avalve plunger be Figure 1 is a side elevational view of a tooth 40 cause this element has at least two -functions, namely that of a plunger or displacement means brush constructed in accordance with the inven tion. ‘ . „ , ‘ and a closure valve. l Suitable caps or closures may be provided for Figure 2 is a cross-sectional view therethrough. detachable connection to the handle so as to cover Figure 3 is a cross-sectional View of the brush 45 the enlarged head I 2 of the valve plunger and to with the end closure pieces or caps removed and cover the brush. One such closure piece :is illus illustrating the ñrst step preparatory to the re trated at I4 which may be screw-threaded or moval from the reservoir of a portion Yof the sub otherwise attached to the handle at I6. The par ticular attachment shown comprises screw-A Figure 4 is a view similar to Fig. 3 showing the 50 threads. Another closure piece> I‘I is detachably brush in reversed position. ` connected to the brush handle by 'suitable ‘means Figure 5 is a view similar to Fig. 4 showing theV such as screw-threads I8 so _as to cover' the brush. action of displacing a portion of the substance The_closure piece or c_ap I8 may have suitable; Ventilating openings I9 therein so thatV the brush from the reservoir. Figure 6 is a cross-sectional view taken on line 65 may dry when not in use and the device may be stance therein. ' ' > ‘ 2,409,952 3 4 equipped with a clip 2D so that it may be convenf iently carried in a pocket. This structure may be made of any suitable the angle be such as to cause the liquid substance to gravitate so as to provide an air chamber in , Ä'” ' " . the end of the reservoir adjacent the outlet during the time the plunger is being retracted and to material and except for the clip and the brush bristles the entire structure may be made from provide an air chamber at the opposite end of the reservoir during the time the plunger is being advanced into theV reservoir. Thus a single movable element, in association with a rigid reservoir capable of ¿ retaining its a plastic material of which there are a number available. Some of the plastic parts may be transparent or translucent and particularly may the handle or reservoir portion be thus provided so that that supply of substance therein is visible. The liquid substance in the reservoir, which is geometric shape, provides for a positive ejection of substance from the reservoir and also serves The extent to which the plunger is retracted for the admission of air into the reservoir may depend upon the shown at 2 I, may be used as a supplemental anti- ` l ' the purpose of a sealing valve. septic in the brushing of the teeth. In other ._ words, if an antiseptic is employed, the teeth may be cleaned by a paste or powder appliedy to the 15 desires of the particular individual, although the device may be provided with a means for limiting brush and a small amount of antiseptic used in a the extent of retraction or for indicating the` supplementary fashion. The substance in the reservoir may alone be used in the cleaning> and average or proper extent of retraction. The reser voir may be refilled by removing the plunger en brushing of the teeth. This may be leftfsome- . what to the desires of the particular users. The 20 tirely and introducing a new supply through the opening. ' substance in the reservoir may, on the other hand, have cleansing properties for the cleansing of the I claim: .. , , teeth or it may combine cleansing properties with 1.’ A fountain brush for liquid substance com antiseptic properties. ¿ v . prising, a brush head, a hollow handle therefor The manner of use, other than the actual brush 25 constituting a reservoir, an elongatedV capillary ing of the teeth, is illustrated in the drawing. In Fig. 2 the plunger is` positioned so `that its tapered valve portion »I4 is lscrewed home against the seat 8 >thus sealing the reservoir. The lock nut I3 may be tightened against the 30 passageway leading from one end kof the reser voir to a point adjacent the brush head, a dis placement member mounted in the wall at Vthe opposite end of the reservoir for movement lengthwise in the wall so thatfit vmay be ad end of the reservoir handle so as to tighten the vanced into and retracted from the reservoir to thread engagement at II to thus, seal the reser ensmall and enlarge the reservoir respectively, voir at this point. In this condition,> with the caps the end of the displacement member having a applied the' device may be carried with facility. valve formation thereon for seating vandclosing Ineorder to obtain a supply of the substance for Y use, the brush is positioned with the brush head uppermost as shown in Fig. 3 so that the liquid the reservoir end of the passageway, whereby upon retraction of the displacement member, the__pas.~ sageway is opened and the reservoir is Venlarged so that atmospheric air enters >the same through the passageway, the lbrush adaptedk to be posi-. Therplunger is now turned so that its valve por tion I4 backs off the seat so that the passages ‘àA 40 tioned so that the substance gravitates tothe end of the reservoir having the ¿joassageiìvam- the and "I, are> now open to the atmosphere. The operato-r continues to turn the plunger so ~that it capillary passageway >offering such restri'ctionV is retracted a distance from the valve seat and itv thatî ther liquid substance will not ,normally ` iiow` therethrough, whereby upon advancement of' the, will be observed that this enlarges the capacity substance gravitates away froml the passage »'I. of the reservoir. , This isbecause some of the body 45 of the valve plunger is moved from within the reservoir to outside of the reservoir. During this period air passes into the reservoir through the aligned passages 6 and 1. . displacement member into _the reservoir, some of ‘ the substance is ejected through Vthe passageway by the pressure caused by the ensmalling ofthe reservoir. ' . . 2. >A fountain brush for readily ñovvable liquid The brush is now positioned so that the brush 50 substance comprising, a brushv head, a hollow head extends downwardly as shown in Fig. 4 and » handle therefor constituting a reservoir, said the «liquid gravitates to the lower portion of ,the handle being rigid for retaining aflxed geometric reservoir which is now at the outlet end. The small passages 6 and/or 1, however, are such that ing a passage leading from thevreservoir to a point shape, a single opening in the reservoir compris-. the,v liquid does notrilow out through'the same. 55 adjacent the brush head, said passage being elongated and of capillary characteristicsA so thatl Thejplunger is now turned on its screw-threads to it offers such resistance that the liquid substance` advance it into the reservoir.~ This ensmalls will not normally ñow therethrough, a ‘displace the reservoir fand tends to create a . pressure ment plunger in substantial alignment with the therein greater than atmospheric. As a result a certainamount of the substance is forced. out 60 passage and threaded in avvall of the handle, said displacement plunger having a valve- forma through the passages 6 and 'I into the brush tion adapted to seat and close the passageway," bristles. This is shown in Fig.> 5.y This forcing the displacement plunger adapted to be retracted of thesubstance out through the outlet passages from the reservoir to open the passageway and continues until the valve portion I4 again comes to» rest upon the valve seat 8. 65 enlarge the'reservoi‘r capacity whereby air `enters the -reservoirgrthe displacement vplunger being The substance is accordingly actually ejected adapted to be advanced into the reservoir thereby by aï pressure action by the simple expedient of to ensmall its capacity, so that, when the brush» creating a gaseous pressure within the reservoir is positioned with the passage below the levelof which exceeds that of atmospheric. The outlet end of. the passage 5 may be suitably positioned to 70 the substance in the reservoir, some of the‘sub stance is ejected out of the -reservoir throughV the discharge the substance into or on the brush bristles as desired. In actually using the device in thisv marmer it need not be positioned vertically asshownin Figs. 3 and 4..- Itis suflicient that passage. CLARENCE y . A‘NOTMAISI...4 i '.