US1658720A - Means for controlling the fluid outlet of ampules - Google Patents

Description

Feb. 7, 1928,

G. N. HEIN MEANS FOR CONTROLLING THE FLUID OUTLET OF AMPULES Filed April 16, 1927 7 %7% 5 allow @H Patented Feb. 7; 1923. V I 1 UNITED STATES lATENT OFFICE.

.enonen N. item, or sen rniinoisoo, ostrronnin. MEANS FUR CONTROLLING THE FLUID OUTLET OF AMPULES;

Application filed April 16, 1927. Serial No. 184,198. The present invention relates to the moons filtering screen and provided with it yield controlling the transferring or discharge able cmiuiression vnlve. of third from the mitlet of mnuules and is Referrrn to the drmvln 's where n l-llifl 1 l7 7 r: m J

adopted 4 s generally. ing parts, the numeral 1 designates n 0011- so he invention are to provide ventionol thin glass ampule preierehl vt or c trolling the discharge of pointed at its opposite ends as atfl, although the on, et oi ampules; to provide the same may he pointedonlv at one endnt filtering the discharged fluid 2-Fig. 4. Overone end of the oinpule admission into the barrel of a tightly fitted or stretched an elastic tubular 65 *ode c s e or other vhle reeepsleeve 8. The treeiend oi: the sleeve isnoren ondto provide or qnsi and positive inally closedhy a conjipressionvalve, illus means for sealing portinllyused ampules to tinted es comprising nyieldahle Wall 4, dispreclude the circulation of air therethrough. posed transversely of the end; ofthe sleeve With the above inentio? 2d and other ohzi -d provided with on elongatedislit 6, the 7 iects in view the invention co l the 1 0t which are normallyinmeeting relnand l n or ports tion to the slit, constituting a valve opening.

' F the nc- The Wall 4i may be integral with ore part out in separate from the sleeve so long: as it extends under transversely otthe sleeve and is provided i, pr Withnn opening capable of being distorted. t

portion, size and minor trim The other end of. the enipuleinsy also he tion Within the scope oi ns may be pro ided With an elastic tubular sleeve 7 resorted to without departing from the detochnbly carrying at its "free endaii vo conispirit or sacrificing any of the advantages cnl iilteringscreenlh the hese'lO of which is t0 of the invention. 7 embraced by the end 8 of the sleeveeFigs.

To more fully comprehend the invention, Qimd 3.

or use in connection characters of reference indicate correspondit means prior to novel construction herein: or de l coni 'ienying d. swings n. the claims h v stood that various: chnn reference is directed to the accompanying The elastic sleeves after positioning on drawings, wherein oppos1te ends of the :nnpule gripped he- Fig. 1 is a iew in id l v tion of n tween the fingers and are given a slight lne he einpnle showing the tubular sleeve members eral movement W B sired to fracture in position on each pointed end thereof. the znnpule ends, as shown in 3, 4e and Fig. 2 is a view in side elevation of n 5, thefracturing etlordine; the fl id i'lQ double end sinpnle, illustrating in longifrom the mnpnle by gravity whentippedon In; tudinnl section the sleeve members in postend d l i admitted i uppe 6 1d 0f 0 w :1 cap covering the filtering means the ends '5 s eeve 7, as shown in Fig. 3 closing the Fin, 5 is a. View inv side elevation of an W 5 is elite-1161861 lilo 1001111 3 :1 view in ii nil oi the sleeve carrying the 7 preferably over the other end, the ends oi:

tion, one bein provided ith a filt i the :inipule. This sir admission iscontrolled screen, and the end oi? the other being pro- 136 5 31 the a H l ite t 1 1 vided wit it yieldeble compression valve. slit 6, HS Shown in 1f desired? A Sealf Fi 3 is a View Simflm to Fi 2 l i ing cap 11 may be fitted over the outer end f th 21111191118 ba t a g, end of sleeve 7 and sealing the unused. con- Fig. l: illustrates a single end ztrnpule with tents 01? said ilmlmle fewest P -EQ- the sleeve member in position emln'ncing its Figil ustletes a construction ivn fractured discharge end. the end oi the sleeve 3 he 'ond the slotted ole bulb 9 :nnpnle with the sleeve embracing its tapered rueture 12 provided with a l end, th 5199, at it outer d b i trolled air vent 13. This structure pan \Jidgd ith a i ld bl b lb h i a t ticulnrly adapted for i'forcing the fluid under therein. pressure "from the empule Where speed is re- Fj 6 i a i i d l ti f a sleeve quired or Where the density of the fluid conshowing the compression valve in its normal t n s of the empule is too greet to pass by or closed position. Y gravity through the filtering screen 9.

Fig. 7 illustrates the compression valve in In p o With h ve 3 p sitioned its compressed or open position. Fig. 8 i over one end of the ampule, and the sleeve int ill)

the ainpule are fractured; the slit Walls of sleeve 3 are compressed endvvise of the slit (5, asshown inFig. 7, opening the Slit thereby admitting air into the ampule, allowing the fluid to discharge by gravity from its opposite iraetured enthand it sleeve 7 is in position the fluid passes through the lilter- ,ingscreen 9 into any desired receptacle.

Where the density ofthe thud too great to pass through the filtering means, the sleeve (Fig. 5) carrying thebulb structure 12 at its free end may be used. In this construction, the airvent 13 is closed by placing the linger thereover and the bulb compressed, which forces air through the slit (5 1n the Wall 5, thus forcing the fluid under pressure from the am pulse and through the filtering means. \Vhen the lingerie; removed from the air vent 13 and the same is opened to allow air to enter the bulb Stl'!l(lture, and pressure on the bull released the bulb assumes its normal position, the slit in the vall closes, tillttpl'GtfltltltE the ad mission of air into the ampule. a

One end2 of the ampule may be fractured and removed prior to placing the sleeve 3 thereover, and when the opposite end is broken, the ampule contents rill be pre [cludedtrom flowing therefrom until such time as the slit 6 of the sleeve is opened, admitting air into the ampule.

The sleeve 3 with the bulb structure 12 at its end may be used as previously described to force the fluid under compression from the ampule or the samemay be used in the same manner, as the sleeves 3, illus trated in Figs. 1 to i inclusive. When used to control the gravity flow of the ampule contents it is only necessary to compress the Wall 5 endwise of the slit 6, the necessary air to displace the fluid discharging from the ampule being admitted through thenormally open vent 13. p

In Fig. 8 the sleeve 7 is illustrated as being providedintermediate of its ends with a transverse Wall 14 provided with a slit 15 adapted on endwise 0011'11')1'(3Ej.'-1l01] to open and close. i

It to be understood that the screen or filtering member may be positioned on either side of the wall It in accordance with manufacturing advantages.

With the sleeve T equipped as designated, it will be apparent that both slits (i closing the body inwardly from its open end said wall provided with a normally olosed vent adapted for distortion and opening on l'JtQSilll'Q being applied longitudinally of the we ll transveri'aely or the elastic body.

In combination with a fluid eontainim. ampule having pointed ends; a pair otyieldable tubular members, one stretched over each of said ends; an elastic wall dispos wl transversely across the free end of one or" said tubular membersasaid elastic u'all pro vided with a slit adapted -J'or distortion to provide a vent; and means carried by the other n'ien'ibcr for filtering the discharged fluid. i

3. An elastic tubular member :tor stretching over one tapered end of a fragile fluid containingampule, said member comprising a tubular elastic body open at one end and provided with a compressible bulb at its other end; and a slit elastic Wall disposed transversely of said tubular member at a point between the compressible bulb and the open end of the body.

In testimony whereof I have signed my name to this specification.

GIEOIR G11) N. H hi I N,

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