US1228758A - Liquid-dispensing device. - Google Patents

Description

K. L. DIETERLE.

LIQUID DISPENSING DEVICE. APPLICATION FILED APR. 10, 1916.

Patented June 1917.

KARL L. DIETERLE, DE LOS ANGELES,. CALIFORNIA.

LIQUID-DISPENSING DEVICE.

Application filed April 10, 1916.

To all whom it may concern: I

Be it known that I, K.\uL L. Diu'ricmac, a. citizen of the United States of America,

. residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Liquid-Dispens ing Device. of which the following is a specification.

This invention relates to a device for dispensing ether, or other liquids which require to be dispensed in a graduated or regulated manner, for example. drop by drop. and the main object of the present invention is to provide for regulation of the tlow of the liquid from the device and for uniformity v of such flow when so regulated.

Another object of the invention isto provide dispensing means for the stated pur-' pose, in which the container for the. liquid is hermeticallysealed until the time of use.

p A further object of the invention is to enable rescaling of the container after each dispensing operation so as to prevent waste or deterioration of the liquid by evaporation or otherwise.

The accon'ipanying drawings illustrate an embodiment of my invention, and referring thereto, Figure 1 is a vertical section of the container provided with my in'iproved dispensing means. I

Fig. 2 is a vertical section of the container in inverted position, showing the dispens- 1ng means operated to dispense the liquid by drops.

' Fig. 3 is a vertical section of a modified form of the invention.

1 designates a suitable container, which may be of sheet metal or other material, and

. may be provided with ancck 2 which is closed by a. cover 3 secured by'solder or otherwise to the neck 2 after the liquid indicated at 4 is placed in the container, so as to hermetically seal the container, this cover 3 consisting, for example, of a disk or plate extending completely over the neck to close the same. t

The container is provided with means mounted thereon and supported thereby, for puncturing said cover, consisting, for example, of a screw 5 screwing in a boss or projection 6 on the cover 3 and provided with handle means such as a knurled head I 7 and with a pointed end 8 adapted to puncture the central portion 3 of the cover 3, said central portion, at least, of the cover being made of comparatively soft metal so Specification of LettersPatnt.

of the screw may be provided with a packing ring 9 adapted to engage the top of the boss (3 when the screw is screwed down toward the same to form a tight joint. Screw 5 is preferably provided witha groove 11 extending longitudinally thereof orscribed.

In order to provide for entrance of air to the interior of the container for displacement of the liquid therefrom, a tube 12 is preferably provided extending from near the bottom of the container through the cover 3 and normally closed at its outer end as indicated at 12 to maintain hermetic sealing of the container. This airvent tube is preferably formed of soft metal to enable passage of liquid as hereinafter dei as to be readily punctured. 'The knurled head 7 being regulated by screwing back the screw any desired extent so as to enlarge the opening between the point of the screw and the cover and. if'necessary, to cause groove 11 to extend beyond boss 6 so as to facilitate leakage of the liquid past the screw. The liquid will then drop from thehead 7 at a definitely regulated rate so that the device, having'been once set by a skilled operator, the administration of the other, for example, may be left to a comparatively inexperienced person with instructions to administer it for a certain time atthe regulated rate. d

When the container is inverted, as stated,

air will pass through the air tube 12 to the upper part of the container displacing the liquid, which therefore flows from the con tainer uniformly without interference due to difference of pressure on the inside and outside of the can.

When the dispensing operation has been completed the screw 5 is screwed down to bring the packing 9 into tight engagement with theboss 6 and the outer end of the vent tube 12 is pinched by a suitable instrument to close the same, the container being thereby' sealed so as to prevent further escape of liquid by evaporation or otherwise. hen the device is to be used again an additional portion of the tube 12 is cut off, the tube being made long enough to permit several repetitions of this operation.

The cover member 3, with the vent tube 12. may be cast in one piece of suitable soft metal, and be afterward soldered on to theneck 2, or on to the surface of a can of any kind, over an opening therein. The cover being soft may be readily cut, if desired, to enable the ether can to be used with the usual cork or otherwise.

The puncturable cover member may be applied to the container in other ways. For example. as shown in Fig. 3, the said member, indicated at 16, may be secured to a cork 14: by meansof a tubular projection 19 on said cover member fitting within a hole in said cork. The edge portion 17 of said cover member may be turned down or crimped to form a tight seal over a flange 18 on the neck 15 of a bottle 20'which may be a chloroform bottle. The construction is otherwise the same as above described. the cover member 16 being of soft metal and having a puncturable part 16 adapted to be penetrated by the pointed end of screw- 5 in the same manner as above explained.

An important feature of this invention is that the means for puncturing the seal is permanently mounted on the container so that each container is provided with means for allowing the liquid contained therein to be dispensed, without requiring the use of an additional puncturing device.

A further feature of the invention is that the puncturing means is also adapted to cooperate with the punctured portion of the container, operating as a valve seat, to act as a regulating means for the flow of liquid after the container is punctured, and eventually to act as a closing and sealing means for the-container.

l. A container for liquid, provided with a puncturable sheet metal seal portion, and a puncturing and regulating device mounted on and supported by said container to move toward or from said seal portion to puncture the same and to form a variable dispensing opening.

2. A container for liquids, provided with a puncturable seal portion, and a punctura pointed end and screwing onsaid con-H tainer to cause said pointed end to puncture the seal or to open or close the opening formed by puncturing the seal, and an air inlet tube extending from near the bottom of the container to the outside of the. container, said air inlet tube being of soft metal and being of sufficient length outside the container to enable it to be repeatedly cut for opening the tube or pinched for closing the same, and said puncturing means being provided with packing means for tightly engaging the outside of the container to close the same.

4. A container for liquids, provided with a puneturable seal portion, a projection on the container, a screw working in said projection and having a pointed end adapted to puncture the seal portion and to cooper ate therewith as a valve, and a normally closed air inlet tube communicating with the interior of the container and consistingof easily cut material to enable it to be opened for admission of air.

5. A container for liquids, having a portion formed with a screw threaded opening, a puncturable seal normally closing said opening, a screw working in said screw threaded opening and'having a pointed end adapted to puncture said seal and to cooperate with the punctured portion to form a variable dispensing opening, said screw having a longitudinal groove for enabling liquid to pass the screw, and said screw having an operating head and provided with a paeking member on said head to engage the portion of the container around the screw threaded opening, to provide for tight closure of the container.

In testimony whereof I have hereunto set my hand, at Los Angeles, California, this 23rd day of March, 1916.

. KARL L. DIETERLE.

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