Патент USA US2408157код для вставки
Sept. 24,1946. ì ‘ . l1'. L.- T11-us A ‘ , 2,408,156 uEAsURING TRAP cHAuBER WITH BARoM'ETRIc cUToFF Filed llarch l0, 1945 ' „ÉE F16. 4 THOMASA L. TlTus INI/miran.l _ 727 Patented Sept. 24, 1946` 2,408,156 UNI-TEDSSTATES PATE-NT 'OFFICE * ` H u y " k,2*,408456l _ u _' MEASURING TRAP CHAMBER WIr-i1 ». ’l _ BARQMETRICCUTÜFF " ’ " ‘ ~ _ I Thomas L. Titus, Cheyenne, Wyo.;a“ssignor~to The . r.Wyott Manufacturingr Company', Cheyenne,k Wyo., a corporation of AWyoming n l ï v ,'Appliçanonmarçh _10, 1945.,..senà1 N9. »ns1-.97.9 ’ ’ 3 Claims. 1 (Cl. Z22-¿437) . ’I_’his invention relateslto improvements in liqé uid dispensing devices. ” tlinzbsidy. the lposition ` 2 . of the lower end thereof can be -adjusted. It is the object of this invention to produce al simple, substantial and eiiicient device for dis ` Secured‘to the‘upïper end of pipe I5 isha cup IS whichxmay be made from rubber, eitherv nat pensing liquids in predetermined quantities. ural or .syÍ-ítheti'c,> or any other suitable material. The neck Il, off .the bottle or of any other liquid container, is inserted into cup I6 andthe wall of y,Another object of this invention is to- produce a device that will operate quickly an'dnwhich will be of such construction that the quantity‘of liq theliatter forms an airtight sea1 about the bottle» neck, as c’learly’shown in Figure 1. A vent Iß'ex'tends' >through the upper wall of the uid dispensed will be very accurately measured. ` Another object of this invention is to- producey a device for the purpose indicated which cannot be used for abstracti'ngemore than the measured quantity of liquid atleach operation. body ILI. The outer vsurface ofthe valve chamber wall is threaded-fas indicated at I9. An end clo sure yZIîis held in place below the valve chamber A still further object of the invention is to byrn'eans ofua threaded sleeve whose lower produce >a compactdevice that shall be capable 1,5 wall end> has an inwardly extending flange 22 that .of being manufactured in apleasing and orna engages _in a corresponding rabbet in the closure. The end closure has a downwardly extending tu , Having called attention to the various objects bular .hub 23. Positioned at the lower end of the of the invention, the invention will now be de valve- 4chamber Wallis a flexible diaphgram 211 scribed in detail and for this purpose reference 20 which may ber made of rubber or of any other will `be had t0 the accompanying drawing in which flexible material, either some suitable plastic or theÍ invention has ‘been illustrated'in'its preferred one ofthe many so-called synthetic rubbers. form,- and in which:’ ' ' ` mental form.> ` . , l This diaphragm must be quite flexible and elastic `,Figure 1 is a vertical diameter section taken on line I-I, Figure k2; ' i ' Figure 2 is a side elevation of the device shown and the material mustbe selected .so that it will 25 not >be Yaffected bythe liquid being dispensed. _In the drawing, diaphragm 2'4 has been shown* as of considerable thickness, but this is merely in Figure Figure31; isa fragmentary ' , section similar to that for- conveniencein drafting, and `'explaining vthe in shown in> Figure l, but shows the parts to an en vention. 'I‘he‘diaphragmr should` b'e asthin as larged scale and a valve in sealing position;v 30 consistent .with strength and the contemplated Figure 4 is a fragmentarysection similar to that mode of operation. Extending through the hub shown in Figure 3, but shows the valve in fullyV 23 is a discharge tube 25 whose lower end is pro opened position; vided with rlaterally Yextending wings 26. The -Figure 5 is a fragmentary _section intended to upper end. of .thisltulbe isîclosedand has a threaded illustratein a clear manner the lost >motion means 35 extension or stud 21 for a purpose which~ will which will be hereinafter referred to; Iand presently appear. Directly beneath the upper Figure 6 is a view similar to Figure 5, but shows end wall of ,the dischargerftube, there is a groove a slight modification. _ 281er the reception of the Aedge of the diaphragm 24. vThe ldiaphr’agm is 4provided with a central a support which may be of any construction; at 40 openingthat is `smaller than the bottom diameter In the drawing reference numeral I Il designates the end of the support is a body I I which, inthe of groove 28 so that when itis positioned as shown in Figures F2, 3 and 4, the tension exerted by the drawinahas been shown `as formed integral with the support Iii, but which maybe, and prefer diaphragm .willform a tight seal'between it and -the dispensing tube. The outer edge of .thevdia ably is, made from >a separate piece secured to the support -in any suitable manner. The under 45 phragmfis vclamped between the lower end of the valve chamjb'er'wall andthe upper surface of the surface of >body I0 has .a circular depressionl2 end» closure as lclearly- shown in the drawing. Se, that forms 'avalve chamber. The upper Wall cured to the upper end> of the’ discharge tube is a of the. body has "a, .frustoconical depression lI3 cup' having an upwardly extending wall 29. The in its upper surface >and from »the vertex ofthis 50 bottoniof the `cup has'been designated by refer depression anllf opening LI4 extends through the ence numeral >31)'and'extending Adownwardly from wall ,and- into ’communication V»with the valve the .underfsurface (thereof _isa flange 3I. The cup chamber. A fill tube I5 is( threadedly mounted is providedwith. a central- openingl for the recep in’` opening I!! and projects downwardly into the valveì'chamber. >»13er `rotating the pipe relative to 55 tion offtheltlireaded studi] and is held .in posi tion by a «.nutï3l2. 'The _end closure is `provided 2,408,156 with an inwardly extending ledge 33 that has an annular concave surface 34 positioned beneath the diaphragm and directly beneath the flange 3| on the bottom of the cup. The discharge tube 4 valve. The weight of the liquid in the cup will, of course, be counterbalanced or made ineffec tive when the cup is surrounded by liquid as in , Figure 1. is provided with a plurality of openings 35 posi- -» tioned directly above groove 28. In the above description a lost motion con nection has been shown and described which is simple and effective for the purpose under con It will be observed from the drawing that the sideration, but it is to be understood that this is weight of the discharge tube and the cup are soVmerely illustrative of means for this purpose and related to the diaphragm and other parts that vthat it may be replaced by some equivalent lost they will normally assume the position shown 10" motion construction that will effect a seal of the in Figures l and 3 with the flange 3l resting on intake tube before the valve is opened and a the upper surface of the diaphragm. , Since the ' ' closing Yof the valve before the intake is unsealed, diaphragm is very flexible and. quite thin, the , thus assuring that no liquid will be supplied to weight of these parts will bend it downwardly into engagement with the concave upper surface of ñange 33, as shown most clearly in Figure 5_. When the parts are in normal position-,like that shown in Figures >l and 3, the plane 35 of the ¿ the valve chamber at any time when the seal be tween flange 3| and the diaphragm is broken. Attention isïagain- called to the fact that the diaphragm has been shown to an exaggerated thickness and it is to be understood that it is to upper edge of the cup wall is spaced a short dis-be as thin as can practically be used so as to tance from the lower end of the fill tube l5, as 20 afford as little resistance towards flexure in re It will be observed that due shown in Figure 1. sponse to the weight of the parts as possible. to the fact that the diaphragm is bent down Having described the invention what is claimed wardly into engagement with the concave sur as new is: face '3d when the weight of the parts rest on the 1. A device for dispensing liquid in measured diaphragm the seal between flange 3l and the 25 quantities, comprising, a body having a valve upper surface of the diaphragm will not be bro chamber, provided with a fill opening and a vent ken until the cup and the flange 3l have moved in its upper wall, a ñll tube in the fill opening, upwardly a distance‘at least equal to the distance the fill tube proiectingrbelow the upper wall sur between plane 3B and the bottom of pipe I5. face of the chamber, an airtight liquid con This construction forms a lost motion connection 30 tainer above the body in communication with the that permits the fill tube and cup to be moved a ñll tube through an opening in'its bottom, the short distance before the seal is broken. The lower end wall of the chamber having a dis purpose of this is to effect a seal between the charge opening, a discharge tube extending liquid in the cup and the lower end of the fill tube through the discharge opening, the upper end of before the seal is broken between flange 3l and said tube being closed, a flexible diaphragm hav the diaphragm. As soon as the cup moves up ing a central opening through which the dis to a position where plane 3B is in engagement charge tube extends, means for attaching the with the lower end of tube I5, or slightly above outer edge ofthe diaphragm to the wall of the it, no liquid can escape from the sealed container lvalveV chamber, the wall of the discharge tube and therefore when the parts' aremoved up having an opening above the diaphragm, a cup wardly in the position shown in Figure 4, the liq secured to the upper end of, the discharge tube, uid in the valve chamber is free to escape, and below the lower end of the 'fill tube, the under during this escape period no further liquid will be supplied. When the measured quantity of liquid has been discharged and operator relieves the Vpressure on the lower end of the discharge tube, the latter falls, due to the action of gravity and before the plane 36 passes below the end of the’ñll tube l5, a seal is effected between’the diaphragm and flange 3|. The construction just described assures that no liquid can-be surrepti tiously removed by the expedient of carefully and slowly moving the valve to closed position, ' In Figure 6 a slightly modified form of con struction has been shown in which the flange 3|, instead of being made entirely of metal is made in part of a resilient flexible material Bla which bends when it comes in contact with the diaphragm and thus gives a lost motion eñect A surface of the cup having an annular flange posi tioned to engage the upper surface of the dia phragm to form a seal, the parts being so propor tioned and related that when the flange is in nor mal sealing position the plane of the upper edge of the cup'will be spaced a short distance below the loweren'd of `the fill tube, the cup being mov able upwardly to a point where the plane of its upper edge is above the lower end of the ñll tube before the seal between the flange and the dia phragm is broken, whereby air is prevented from ` entering the container until the flange returns to sealing position. 2. A device for dispensing liquid in measured quantities, comprising, a body having a valve chamber provided with a fill opening in its upper similar to that obtained by the construction 60 wall, an airtight liquid container positioned above the body, the opening in the upper wall being shown in Figure 5. formed in part by a fill tube that projects down' This device is intended to be connected with wardly into the valve chamber, the container an automatic counting mechanism that indicates communicating with the chamber through the the number of times the discharge valve has been moved upwardly and therefore an operator will c be charged with the total quantity of liquid, even if the valve chamber is only partly full at the time the valve is opened. Y Thefeature just described is a safety feature of great importance where expensive liquids are being dispensed as it discourages attempts to cheat and in fact makes' it impossible to do so. It will be observed that added to the weight-of the discharge tube and the cup is the weight of the liquid in the cup which serves to set the 75 ñll tube, the lower wall of the chamber having a discharge opening, a discharge valve comprising a >discharge tube having its upper end closed, extending through the discharge opening, a flex ible diaphragm having a central opening for the reception of the discharge »tube and connected therewith by a-watertight seal, the wall of the discharge tube having openings positioned above the diaphragm, means for effecting a seal be tween the wall of the chamber and the outer 5 2,408,156 edge of the diaphragm, and a cup connected with the upper end o-f the discharge tube, the cup; opening upwardly and positioned beneath the ñll tube, the under surface of the cup having a cir cular ñange adapted to engage the upper surface of the diaphragm to form a seal, the relationship of the parts being such that when the cup and discharge tube are supported from the dia phragm, the lower end of the ñll tube will be a short distance above the plane'of the upper end 10 of the cup, the upper wall of the _valve chamber ' having a vent. extendingvfrom the tube to the Wall of the valve chamber in sealing relation with both, the wall of the discharge tube having at least one open-v ing positioned above the diaphragm, the upper wall of the valve chamber having an Yopening positioned within the area of the cup, a fill p-ipe threadedly engaging the wall of the last named opening, the interior of the sealed container being in communication with the valve chamber through the ñll pipe, the under surface of the cup having an annular flange for engagingY the .upper surface of the diaphragm, the parts being 3. A device for dispensing liquid inv measured so related that when the cup and discharge tube quantities from a sealed container having a dis are supported from the diaphragm, the top of the charge opening in its under side, comprising, in 15 cup will be a short distance below the lower end combination, a body having a valve chamber in of the ñll tube, and will be above the lower end its under surface, ¿removable end closure for of the fill tube before the seal between the flange the chamber, the end closure having an opening, on the cup and the diaphragm is broken, whereby a discharge tube in said opening, the upperend no liquid will ñow from the sealed container of the tube being closed, ay cup supported from 20 while the valve is open. ' the upper end of the tube, a flexible diaphragm THOMAS L. 'I‘ITUS.