US2557648A

US2557648A - Container with evacuated closure

Info

Publication number: US2557648A
Application number: US679324A
Authority: US
Inventors: Laurence G Gerson
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-06-26
Filing date: 1946-06-26
Publication date: 1951-06-19
Anticipated expiration: 1968-06-19

Description

June 19, 1 951 L; G. GERSQN 2,557,648

CONTAINER WITH EVACUATED CLOSURE Filed June 26, .1946

v/A 1%; W2 1 v Vi V kyi igm IIl/lllllll! p v INVENTOR LAURENCE'G. GERsoN 72h ATTORNEY.

rllllllllllllllllllllll Patented June 19, 1951 NITED STATES 8 Claims.

My invention relates to an improved type of closure for vessels.

My invention is to provide a closure for vessels which closure results in the rarification or dilution of air remaining in a vessel immediately upon the insertion and installation of such closure and without any further operation.

My invention further provides a closure for vessels which closure results in the charging of any content immediately upon the insertion and installation of such closure and without any further operation.

The closure according to my invention is provided with a chamber or bulb which is subsequently opened to the interior of the vessel.

The object of my invention is to provide a means by which the chamber section of the closure is fractured and opened to the interior of a vessel as part of the insertion or installation operation.

It is not an infrequent occurrence for an individual to open a container of chemicals, particularly medicines, use the desired amount and then be obliged to discard the remaining contents of the container. This rejection is a necessity because, Where the container was originally filled with the chemical, it now has a comparatively large amount of air trapped in contact with the chemical. Consequent decomposition of the chemical is likely to occur when the chemical is exposed for a protracted period of time to the fresh and relatively large amount of air. The possibility of decomposition of a chemical may render further use of the containers contents dangerous. Hence, the remaining contents are discarded. The elimination of this wasteful, but heretofore necessary procedure is an object of my invention. When a bottle containing a sub stance unstable in the presence of air is opened for use, it is a simple matter to apply a cover, constructed according to my invention, to the bottle and thus retard or eliminate decomposition and make the bottle contents available for subsequent use.

A further object of my invention is to provide a cover which acts first to seal the container and then to rarefy the air in said container.

The bulb can be filled with an inert gas like nitrogen which would also serve to dilute the oxygen content of the air over the substance in the bottle. Or it might be desirable to have a substance in the bulb which would chemically react with the contents of the container.

If the bulb is charged with carbon dioxide, a simple carbonating device results.

These and other objects will be understood from the following description, appended claims and accompanying drawings in which:

The closure is to be made of any frangible material, a plastic being the most logical.

Figure l is a longitudinal sectional view of the closure as partially installed on the vessel.

Figure 2 is a partial view of the closure fully installed on the vessel showing the throat of the vessel as having fractured and opened the closure.

Figure 3 is substantially a transverse view of a modified form of the closure.

Referring to Figures 1 and 3, vessel i0 is a conventional design having a throat H threaded to receive the closure l2. Closure l2 carries a hermetically sealed chamber or bulb I3 which is part of the complete closure. Chamber l3 has protrusions projecting outward as indicated by M. Interposed between the closure and the throat I5 is a washer I! made of rubber or the like. The contents of vessel IE] are represented by i8. I 6 represents one of many points for activating and then sealing the bulb. As the closure :2 is installed on the vessel It), washer I"! first makes contact with the closure I2 and the vessel Ill. Further installation of the closure I2 forces the throat or neck 15 against the protrusions Hi. The pressure of the throat I5 against the protrusions It causes the closure to automatically fracture and open at point 49 as shown in Figure 2. This novel means of fracturing the closure therefore requires no other effect or outside aid than that of installing the closure on the vessel in the same manner as any conventional bottle cap since the fracturing is done entirely automatically by the vessel during the.

process of installing the closure.

As is evident from these ,drawings all fracturing is done automatically within the vessel during the process of installing the closure.

It is understood that changes may be made in arrangements and proportion of parts, and equivalents may be substituted without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim:

1. A vessel having air and some contents therein; a closure for said vessel said closure made of a frangible material, and said closure comprising a threaded cap to fit over the throat of said vessel so as to make an airtight seal, and having a hermetically sealed chamber charged with a gaseous element depending from said cap which chamber is inserted in said vessel, and said chamher having external protrusions around a portion of its side wall said protrusions projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusions causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

2. A vessel having air and some contents therein; a closure for said vessel made of a frangible material, and said closure comprising a threaded cap to fit over the throat of said vessel so as to make an airtight seal, and having a hermetically sealed evacuated chamber depending from said cap which chamber is inserted in said vessel, and said chamber having external protrusions projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusions causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

3. A vessel having air and some contents therein; a closure for said vessel said closure made of a frangible material, and said closure comprising a hermetically sealed chamber charged with a gaseous element, which chamber is inserted in said vessel, and having a flange around one end of it said flange to seal the throat of said vessel, and said chamber having external protrusions around a portion of its side wall said protrusion projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusions causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

4. A vessel having air and some contents therein; a closure for said vessel said closure made of a frangible material, and said closure comprising a hermetically sealed chamber evacuated of air, which chamber is inserted in said vessel, and having a flange around one end of it said flange to seal the throat of said vessel, and said chamber having external protrusions around a portion of its side wall said protrusions projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusions causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

5. A vessel having air and some contents therein; a closure for said vessel said closure made of a frangible material, and said closure comprising a hermetically sealed chamber charged with a gaseous element, which chamber is inserted in said vessel, and having a flange around one end of it said flange to seal the throat of said vessel, and said chamber having an external protrusion on a portion of its side wall said protrusion projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusion causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

6. A vessel having air and some contents therein; a closure for said vessel said closure made of a frangible material and said closure comprising a hermetically sealed chamber evacuated of air, which chamber is inserted in said vessel, and having a flange around one end of it, said flange to seal the throat of said vessel, and said chamber having an external protrusion on a portion of its side wall said protrusion projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel, the throat of said vessel is caused to exert pressure against said protrusion causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

7. A vessel having air and some contents therein; a closure for said vessel made of a frangible material, and said closure comprising a threaded cap to fit over the throat of said vessel so as to make an air tight seal, and having a hermetically sealed chamber charged with a gaseous element depending from said cap which chamber is inserted in said vessel and said chamber having an external protrusion on a portion of its side wall said protrusion projecting outward for engagement with the interior Wall of the throat of said vessel so that during the process of installing said closure on said vessel, the throat of said vessel is caused to exert pressure against said protrusion causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

8. A vessel having air and some contents therein; a closure for said vessel made of a frangible material, and said closure comprising a threaded cap to fit over the throat of said vessel so as to make an airtight seal, and having a hermetically sealed evacuated chamber depending from said cap which chamber is inserted in said vessel and said chamber having an external protrusion on a portion of its side wall said protrusion projecting outward for engagement with the interior wall of the throat of said vessel so that during the process of installing said closure on said vessel the throat of said vessel is caused to exert pressure against said protrusion causing the wall of said chamber to automatically fracture and open to the interior of said vessel.

LAURENCE G. GERSON.

REFERENCES CITED UNITED STATES PATENTS Name Date Casey Oct. 30, 1945 Number