|Publication number||US3602273 A|
|Publication date||Aug 31, 1971|
|Filing date||Jan 14, 1970|
|Priority date||Jan 14, 1970|
|Publication number||US 3602273 A, US 3602273A, US-A-3602273, US3602273 A, US3602273A|
|Inventors||Flentge Robert L, Schulz Gerald L|
|Original Assignee||Us Army|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (3), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
2 United States Patent  Inventors Robert L. Flentge PlIl1Vi11Q,A18- 4 Gerald L. Schulz, Holliston, Mass.
 Appl. No. 2,772
 Filed Jan. 14.1970
 Patented Aug. 31, 1971 v  Assignee The United States of America as 'repraentedbytheSecretaryottheArmy  ATTACHMENT FOR FLUID DISPENSER 5 Claims, 3 Drawing Figs.
52] us. (I 141/313, 222/566  IILCL .L B651) 1/18  Field Search ..l4l/3l-3'317,
 References Cited UNITED STATES PATENTS 798,019 3/1905 Denel 141/314X 1,725,345 8/ 1929 Donnellan 141/314 X 1,747,312 2/1930 Middelboe 141/314 X 1,753,852 4/1930 Donnellan... 141/314 UX 2,545,820 3/1951 Lehr..... 222/566 X 3,368,302 2/1968 Martino 222/566 X Primary Examiner-Samuel F. Coleman Assistant ExaminerNorman L. Stack, Jr.
Attorneys-Harry M. Saragovitz, Edward J. Kel1y, Herbert Berl and Charles F. Murphy ABSTRACT: An attachment for a fluid dispenser havin an the collar induced by the pivoting of ahandle pivotably attached to the body of the attachment.
ATTACHMENT roa FLUID DISPENSER i i The invention described herein may be manufactured, used, and licensed by or for the Government for governmental purposes without the payment to us of any royalty thereon.
This invention relates to an attachment for a fluid dispenser which is maintained in a fluidtight connection with a sleevelike portion of a flexible film container during the dispensing of fluid into the container from the fluid dispenser.
Dehydrated foods have become important elements of the diets of personnel-who may be confined in space vehicles for protracted periods of time where it is important to reduce the weight of the food as much as possible as well as to preserve it. A fluid dispenser, known as the Apollo Water Dispenser, has been developed for the purpose of metering and-dispensing water, which is obtained as a byproduct of fuel cell reaction,
the threaded portion of bore 11 and locked by setscrew 16.
' Adapter may be formedintegrally with tube 13 by being into flexible film packages of dehydrated food products and for dispensing water directly into the mouth for drinking purposes while an astronaut is wearing a space suit. However, heretofore it has been customary to have one-way valves in the flexible film packages containing dehydrated foods in order to preventthe escape of droplets of water from the packages and to insert the nozzle of the Apollo Water Dispenser into the package through the one-way valve. Such one-way valves add a significant amount of weight when each machined as one piece therewith or being threadedly mounted thereon or welded thereto. Tube 13 and adapter 15 are provided with a continuous internal bore 17 therethrough which is coaxial with bore 11 in body member 10 and is adapted to snugly receive a portion of the barrel 40 of fluid dispenser 41 therein. An O-ring 18 of resilient material, such as rubber, is.
which fits loosely about expansion sleeve 20 and has an inwardlyv flanged portion 22 at the end thereof nearest the body member 10 which defines a centrally located opening 23 through which tube '13 extends to connect with the body member 10. The collar is open at its other end so as to receive package is provided with a valve. They are difficult to affix to the flexible packages and at best produce packages of irregu lat-shape. This causes difficulties in stowing the food when storage space is at a premium. Further, the one-way valves are expensive, particularly for one-time use in. each flexible package, and have sometimes caused malfunctions in theuse of the packages. This is unfortunate since such foods are taken on space flights in minimum quantities to fulfill the needs of the astronauts during: their carefully planned and tightly scheduled space expeditions; Furthermore, the specially prepared space foods are relatively expensive'and the wasting of any such foods is very undesirable.
It is, therefore, an object of the invention to provide an attachment for use in combination with a fluid dispenser for dispensing a fluid into a flexible film container under fluidtight conditions so that none of the fluid will be permitted to escape into the interior of a space vehicle in which the container is used.
Another object is to provide an attachment for a fluid dispenser which obviates the incorporation of a one-way valve in a flexible film container into which fluid is required to be dispensed from the fluid dispenser.
Other objects and advantages willbe apparent from the following description of the invention, and thenovel features will be particularly pointed out in connection with the .appended claims.
In the accompanying drawings:
FIG. 1 is a side view in elevation'of the attachment connected to a flexible film package and ready for insertion of the barrel of a fluid dispenser thereinto for the purpose of dispensing fluid into the package; r
FIG. 2'is an enlarged view in vertical section through the central axis of the adapter. thecollar, the expansion sleeve, the body and thehandle of the attachment shown cooperating with the barrel of the fluid dispenser; and
FIG. 3 is-an exploded view of the attachment, including the barrel portion of the fluid dispenser.
In the illustrated embodiment of the invention, the attachment includes a body member 10 having a bore 11 passing longitudinally therethrough and adapted toreceive the barrel 40 of a fluid dispenser 41, shown in part in FIGS.'2 and 3. Internal threads 12 are provided in the end of bore 11 opposite the end into which the barrel of fluid dispenser 41 is inserted. A cylindrically shaped tube 13 having external threads 14 on one end thereof and a frustoconically shaped adapter 15 on the other end thereof is mounted in bore 11 of the body member 10 by engagement of the threaded end thereof with a sleevelike portion 50 of a flexible film container 51 between its inner wall and the outer surface of the expansion sleeve. The open end of the collar 21 has a concavely bevelled portion 24 to facilitate introduction of the sleevelike portion of the container inside of" the collar. The collar 21 alsois provided with an open-ended slot 25 formed in its sidewalls ex-' thereon by means'of bolts 27 passing through the handle and threadedly fastened to each side of the body member at internally threaded holes 28. The handle has an eccentric portion 29 at the end thereof nearest to the pivot axis formed by bolts 27 so.that when the other end of the handle is pulled back in the direction of the fluid dispenser, the eccentric portion of the handle bears against the outer surface 30 of the inwardly flanged portion of the collar 21 causing movement of the col- Iar' along tube 13 toward adapter 15. This movement of the collar compresses the expansion sleeve 20 from end to end between the inwardly flanged portion of the collar 21 and the, rearsurface of the adapter 15 causing circumferential expansion of expansion sleeve 20. Body member 10 has stop means 31 on each side thereof to limit the movement of handle 26 in its backward motion toward the fluid dispenser so that it will not pivot past the position causing the maximum movement forward of the collar effected by the eccentric portion 29 of the handle. I,
In using the attachment for a fluid dispenser, the attachment may be first connected to the sleevelike portion 50 of a flexible film container and thereafter connected to the fluid dispenser; or it may be first connected to the fluid dispenser 41 by inserting barrel 40 into the attachment until the open end 42 of the barrel passes through and forms a fluidtight connection with O-ring 18 and preferably until the open end 42 reaches the open end of the frustoconically shaped adapter 15. In the latter case, the attachment is then connected to the sleevelike portion 50 of the flexible film container. This con-, nection is made in either of the above cases by flaring the sleevelike portion 50, inserting the adapter therein, permitting the heat-sealed fin portion 52 of the flexible film container to enter open-ended slot 25 in collar 21. This is done with the handle in the position 26', as shown in broken lines in FIG. 1. When the handle is in this position, the front and rear edges of the collar are in the positions shown in broken lines and designated by numerals 21' and 30' respectively in FIG. 1.
. When the collar is in this position, it may be rotated to align open ended slot 25 with the heat-sealed fin of the container and the thin-walled sleevelike portion of the container can he slid into the annular space or opening between the expansions sleeve 20 and the inner surface of the collar 21 until it is stopped by the inwardly flanged portion of the collar. The collar'is then rotated about its axis sufficiently to cause the fin portion 52 to be drawn through the open-ended slot and folded so as to lie'flat against expansion sleeve 20. This reduces strain on the heat-sealed fin portion and minimizes the chances of leakage at the fin portion. The handle 26 is then pulled back toward the fluid dispenser as far as possible to the position shown in solid lines and designated by numeral 26 in FIG. .1, forcing the collar forward to the position shown in solid lines and designated by numerals 21 and 30 in FIG. 1. This forward movement of the collar compresses the expansion sleeve between the rear surface of the adapter 15 and the inner surface of the-inwardly flanged portion 22 of the collar. This compression from end to end causes the expansion sleeve 20 to expand circumferentially, thus creating a fluidtight seal between the expansion sleeve, and film of the sleevelike portion of the flexible film container, and the inner surface of the collar.
The fluid dispenser is then activated by means of a trigger, notshown, to discharge a predetermined quantity of fluid, usually water, into the flexible film container under fluidtight conditions so that none of the fluid will be spilled or be able to leak out of the flexible film container in the form of droplets or otherwise. When the fluid has been adequately absorbed by dehydrated food or other material inside of the container the handle of the attachment may be moved forward again to position 26', releasing the sleevelike portion of the container so that it may be withdrawn from the annular space between the expansion sleeve and the inner surface of the collar. The attachment is then ready for connection to another flexible film container in fluidtight relation and for the dispensing of fluid thereinto.
It will be-apparent from the foregoing description of the invention that the attachment of the invention is particularly useful in connection with space flight where weightlessness is encountered and the introduction of water into flexible film packages of dehydrated foods is necessary in order to prepare such foods for eating. It is most important to avoid releasing droplets of water into the interior of a space vehicle since the droplets would float about therein and eventually might lodge in some critical portions of the equipment or controls therefor. The attachment produces a fluidtight connection between the fluid dispenser, which meters and dispenses the water in predetermined quantities needed for rehydrating the food, and the flexible film container, in which the dehydrated food is packaged and kept until it has been rehydrated and is ready to be eaten.
It will be understood that various changes in the details, materials and arrangements of parts which have been herein described'and illustrated in order to explain the nature of the invention, may be made by those skilled in the art within the principle and scope of the invention.
. We claim:
1. An attachment for a fluid dispenser of the type having a barrel having a central bore therein through which fluid is dispensed, said attachment comprising a body member having a bore passing longitudinally therethrough, said longitudinal bore in said body member being adapted to receive said barrel of said fluid dispenser in snugly fitting relation, a frustoconically shaped adapted having a bore coaxial with the central axis thereof, said adapter being sized to fit into an opening in the end of a sleevelike portion of a flexible film container, said adapter being connected to said body member by a cylindrically shaped tube coaxial with said adapter and threadedly attached to said body member coaxially with said longitudinal bore therein, said tube having an internal diameter to snugly receive at least a portion of said barreltherein, a cylindrically shaped expansion sleeve of resilient material fitting snugly about said cylindrically shaped tube between said adapted and said body member, a cylindrical] shaped collar fitting loosely about said expansion sleeve an having an inwardly flanged portion at one end thereof defining a centrally located opening through which said tube extends to said body member, said cylindrically shaped collar being open at its other end to receive said sleevelike portion of said flexible film container between the inner wall thereof and the outerwall ofv said 'ex-;
pansion sleeve, said expansion sleeve being heldbetween the internal surface of the inwardly flanged portion of said cylindrically shaped collar and the rear surface of said adapter, and
mean for forcing said collar to move along said tube away from said body member, whereby said expansion sleeve is compressed from end to end between said inwardly flanged portion of said collar and the rear surface of said adapter and thereby expanded circumferentially to form a positive seal between said sleeve, said sleevelike portion of said flexible film container, and said collar.
2. Attachment according to claim 1, wherein said means for forcing said cylindrically shaped collar to move along said' tube away from said body member comprises a handle pivotally mounted on said body member, said handle having a first end thereof which bears against the outer surface of the flanged portion of said collar and which forces said collar to move toward said adapter when the other end of said handle is moved toward said fluid dispenser causing said handle to pivot.
3. Attachment according to claim 2, wherein said first end of said handle comprises an eccentric portion which bears against the outer surface of the flanged portion of said collar when said handle is pivoted.
4. Attachment according to claim 3, wherein said body member is provided with stop means for preventing said handle from pivoting beyond a predetermined amount.
5. Attachment according to claim 2, wherein said cylindrically shaped collar has an open-ended slot formed in the sidewalls thereof extending from the open end of said collar parallel to the axis thereof, said slot being adapted to receive a heat-sealed fin portion of said sleevelike portion of said flexible film container.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US798019 *||Nov 1, 1904||Aug 22, 1905||Edward S Fitch||Bag-holder.|
|US1725345 *||Jul 5, 1928||Aug 20, 1929||Standard Johnson Company Inc||Bag holder|
|US1747312 *||Sep 11, 1928||Feb 18, 1930||Smidth & Co As F L||Bag-filling machine|
|US1753852 *||Aug 3, 1928||Apr 8, 1930||Standard Johnson Company Inc||Bag holder|
|US2545820 *||Feb 24, 1948||Mar 20, 1951||Paul E Lehr||Quick-setting rate flow nozzle|
|US3368302 *||May 5, 1965||Feb 13, 1968||Dom Martino||Balloon inflator with rotatable valved nozzle|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3727638 *||Apr 26, 1971||Apr 17, 1973||Progressive Prod Inc||Drain plug assembly|
|US5190083 *||Oct 3, 1991||Mar 2, 1993||The Coca-Cola Company||Multiple fluid space dispenser and monitor|
|US8210318 *||Apr 4, 2006||Jul 3, 2012||Haas Automation, Inc.||Minimum oil machining system|
|U.S. Classification||141/313, 222/566|
|International Classification||B64G1/22, B64G1/60|