The subject disclosure relates to a system and method for venting, priming and modifying a flow rate of a fluid from a container. More particularly, the present disclosure relates to a container assembly having an expandable nipple and a one-way vent valve disposed therein to modify the flow rate of a fluid withdrawn from the container assembly.
Various types of valving mechanisms are known to vent air from within a bottle and to prevent the creation of an excess vacuum. Those typically known, include numerous component parts and are large, inconvenient and clumsy to assemble and disassemble. These large valving mechanisms may be integrated into the cap, via the spout and/or an air vent disposed near the cap.
Despite the ineffectiveness of these conventional valve mechanisms, a need exists for an efficient spill proof container assembly and method capable of simultaneously priming before and during use, while enabling a caregiver to efficiently moderating the flow of fluid through the nipple of a container.
Various exemplary embodiments of this disclosure will be described in detail, wherein like reference numerals refer to identical or similar components or steps, with reference to the following figures, wherein:
Particular embodiments of the present invention will now be described in greater detail with reference to the figures.
The collar 30 includes a lower open end 34 connected adjacent to the first open end 12 of the container 10. A mating threaded fastener 36 is fastened to the threaded fastener 16 on the container 10. An aperture 32 is provided in an upper open end of the collar 30 adapted to receive a flange 22 of the expandable nipple 20.
The expandable nipple 20 includes an orifice 21 through which a fluid may flow. The expandable nipple 20 includes the flange 22 disposed at a lower end 24. An upper side 26 of the flange 22 is adapted to seat against a lower surface 38 of the collar 30. The lower side 28 of the flange 22 is adapted to seat against an upper surface 18 of the container 10. In a closed position, the flange 22 is constructed of a resilient sealing material adapted to provide a leak proof seal between the container 10, collar 30 and the expandable nipple 20.
Referring to
Second, the expandable nipple 20 is elastically adapted to be flexibly stretched outward (as shown in
This unique push and pull accordion style nipple 20 allows the infant to more readily self control the flow of milk (or other fluid) by sucking and or applying pressure (similar to breastfeeding) of the nipple 20. The flexibility of the nipple 20 helps the infant maintain a latch, even when the infant's head moves substantially out of alignment with the end of the container 10. Without the use of an expandable nipple 20, nursing infants and/or animal would likely detach from the nipple when a conventional un-expandable nipple was utilized.
As shown in
Referring back to
The size, shape, orientation of the valve, the resilient member and a variety other features are constructed to modulate the fluid flow rate of the first fluid (F1) across the valve 40. In a closed position, the resilient member 42 is constructed of an elastic resilient sealing material adapted to provide a leak proof seal between the container 10 and the cap 44. The cap 44 may be a rigid cap or the like capable of securing the resilient member 42 to the lower end of the container 10.
In doing so, the volume (VOL2) of the expandable container system 100 increases from volume (VOL1) a predetermined amount greater than that shown in
As mentioned previously, the expandable nipple 20 is made of a resilient material that is biased to rest in an unextended position such as shown in
This priming action produced in the expandable container system 100 is a coordinated effort between both, the expandable nipple 20 and the one-way valve 40 working simultaneously to initially build up an initial pressure in the expandable container system 100. Upon release of the extended expandable nipple 20, the counteracting compression force (Fc) is created that further increases the internal pressure in the enlarged volume (VOL2) so that the liquid within the expandable container system 100 is biased to pour out through the nipple passage orifice 21.
The construction of the expandable nipple and the vent valve may take various changes and/or modifications without departing from the broad inventive concepts of the subject disclosure.
In a closed position, the resilient member 42a may be constructed in a circular recessed configuration and made of a resilient sealing material adapted to provide a leak proof seal between the container 10 and the cap 44a. The resilient member 42a is disposed between the cap 44a and the lower end 14 of the container 10. The cap 44a is threadedly fastened into a mating inwardly threaded portion 39a recessed in the lower end 14 of the container 10.
In a closed position, the resilient member 42b is constructed in a flat circular configuration and made of a resilient sealing material adapted to provide a leak proof seal between the container 10, the retainer 46, and the cap 44b. The resilient member 42b is disposed between the cap 44b and the retainer 46 in the lower end 14 of the container 10. The retainer 46 may be snap locked onto the cap 44b via a detent fastener means 46b as shown in
In use, the second passages 45 are accessible from outside of the container 10. As constructed, the various vent holes in the passage 45 can be accessed and covered by a caregiver's finger unlike conventionally valving mechanisms before which could not perform this feature as described in the subject disclosure. That is, according to this subject disclosure, the caregiver can selectively block and unblock all of the vent passages 45 with a single finger.
In a closed position, the resilient member 42c is constructed in a duck bill configuration and made of a resilient sealing material adapted to provide a leak proof seal between the container 10 and the cap 44c. The resilient member 42c is disposed between the cap 44c the lower end 14 of the container 10. The cap 44c may be threadedly fastened onto a mating outwardly threaded portion 39c disposed on an outer portion of the lower end 14 of the container 10.
In a closed position, the co-molded vent valve 40d may be constructed with a duck bill configuration and partially made of a resilient sealing material adapted to provide a leak proof seal between the container 10 and the co-molded vent valve 40d. The co-molded vent valve 40d is disposed in a recess 39d disposed in the lower end 14 of the container 10. The co-molded vent valve 40d is secured into the recess 39d utilizing a pair of locking protrusions 50a.
The co-molded vent valve 40d includes a flange 50c and a cut-out portion 50b mating with the shape of the locking protrusions 50a in the recess 39d in the end of the container 10. In use, the co-molded vent valve 40d is aligned inside of the recess 39d, and the cut-out portion 50b on the flange 50c is aligned with the mating shape of the locking protrusions 50a. The upper surface of the flange 50c is depressed below the lower surface of the locking protrusions 50a and twisted by the knob 50d so that the cut-out portion 50b and the locking protrusions 50a are no longer aligned and the cap 44d is prevented from being withdrawn. That is, the flange 50c is then locked within the recess 39d disposed in the end 14 of the container 10 by the upper surface of the flange 50c bearing against the lower surface of the locking protrusions 50a.
In a closed position, the resilient member 42e is constructed in a duck bill configuration and made of a resilient sealing material adapted to provide a leak proof seal between the container 10 and the cap 44e. The resilient member 42e is disposed between the cap 44e the lower end 14 of the container 10. The cap 44e is disposed in a recess 39e provided in the lower end 14 of the container 10. The vent valve 40e is secured into the recess 39d utilizing a pair of locking protrusions 50a.
The vent valve 40e includes a flange 50c and a cut-out portion 50b mating with the shape of the locking protrusions 50a. In use, the vent valve 40e and the resilient member 42e are aligned inside of the recess 39d, and the cut-out portion 50b on the flange 50c is aligned with the mating shape of the locking protrusions 50a. The upper surface of the flange 50c is depressed below the lower surface of the locking protrusions 50a and twisted by the knob 50d so that the cut-out portion 50b and the locking protrusions 50a are no longer aligned and prevented from being withdrawn. The flange 50c is then locked in the recess 39e disposed in the end 14 of the container 10 by the upper surface of the flange 50c bearing against the lower surface of the locking protrusions 50a.
The size, shape, orientation of the one way vent valve 40f may take a variety of different shapes in order to efficiently modulate the fluid flow rate across the vent valve 40f. The vent valve 40f is constructed of a resilient sealing material adapted to provide a leak proof seal between the container 10 and the outside atmosphere. The vent valve 40f may be co-molded into the side wall of the container 10. Although shown as protruding outside of the wall of the container 10, the vent valve 40f may be recessed in a variety of different ways as described and shown with respect to the various embodiments provided herein.
It is to be understood that the size, shape, orientation of the valve, its component parts, valve passages and various other features may be modified in accordance with the subject disclosure to efficiently modulate the fluid flow rate through the valves and its various components parts.
As briefly described above,
Various materials may be used according to this disclosure including, but not limited to: polypropylene, a thermoplastic elastomer, a high density polyethylene, polycarbonate, urethane rubber, silicone and/or any other suitable material may be used.
It is to be understood that the resilient member 42 is removable and adapted to allow a first fluid (F1) (such as air) to vent into the container 10 when a vacuum is generated within the container 10. Furthermore, the resilient member 42 in the container system 100 is constructed to permit a user to manually modify the rate of a first fluid (F1) which directly affects the flow of the second fluid (F2) (as shown in
Although the expandable container system 100 is illustrated for use as a baby bottle, it is to be understood that the container system and valve 40 may be used for a variety of different containers and applications, such as for example: house-wares: such as condiments, cleaning solutions, cooking ingredients; hardware: such as lubricants, stain removers, pesticides, lawn care; commercial applications: such as condiments in restaurants or the like, and/or any other contained product suitable for use with the expandable container system 100.
As shown in operation in
The first passage 43 in the resilient member 42f may be selectively closed off as shown in
As shown, the expandable container system 100 is embodied as an infant bottle having a narrowed neck 10a portion closer to the lower end of the container 10. The benefit of providing the narrowed neck 10a portion enables a caregiver to more securely and comfortably hold the container 10 from the lower end of the container 10 while allowing the caregiver's finger to lie close and conveniently adjacent to the inlet passage 43 of the resilient member 42f. As such, the caregiver is able to conveniently control the opening and closing of the passage 43 in the expandable container system 100.
It is also to be understood that resilient member 42 may be used in a container without the use of an expandable outlet device (such as the expandable nipple 20 described in this subject disclosure). In such a system, a non-extendable nipple may be used and the user may still selectively control the flow rate of a second fluid (F2) coming out of the container 10 by selectively covering and uncovering the passage of the resilient member. Likewise, the nipple can be replaced by some other type of dispenser or dispensing element for a different product capable of integrating the one-way valve which can be manually manipulated by a user selectively covering and uncovering the inlet 43 passage of the resilient member 42 disposed in the lower end, or other wall of the container 10.
It is to be understood that the valving mechanism may be disposed at various locations on the bottle container. For example, the valve may be located in the collar, on a dispensing element, in the container near the top of the container, the side or at the bottom of the container. According to this subject disclosure, the inlet may be manipulated at any location by the hand of a user, and more particularly by a finger of a user.
Referring back to
As shown in
In this closed position, the finger of the caregiver 2 blocks off the first passage 43 of the resilient member 42f so that the first fluid (F1, i.e. atmospheric air) may not enter through the first passage 43 of the resilient member 42f and into the container 10. In this way, the user may manipulate the flow of the second fluid (F2) out of the orifice 21 in the nipple 20 by selectively blocking the first passage 43 of the resilient member 42f. By blocking the first passage 43 of the resilient member 42f, as the second fluid (F2) is drawn through the orifice 21 outlet in the nipple 20, a vacuum is created in the container 10 as a result of the displacement of the second fluid (F2) in the container 20 since the atmospheric air is not allowed to enter through the first passage 43 of the resilient member 42f and into the container 10 to restore the displacement of the second fluid (F2) escaping from the container 10.
As the vacuum increases in the container 10, the continuous drawing of the fluid from inside of the container 10 becomes more difficult to suck out of the orifice 21 in the nipple 20 because of the build-up of the negative pressure vacuum inside of the container 10.
The caregiver 2 can selectively manipulate the flow of the second fluid (F2) coming out of the container 10 by intermittently blocking and unblocking the first passage 43 of the resilient member 42f with her finger as shown in
As shown, the resilient member 42f includes a narrow neck portion 43d bordered by an upper shoulder portion 43e defining a lower end of the lips and a lower shoulder portion 43f that extends into a larger flange that fits within a recess 39d in the lower end of the container 10, as shown in
As shown, the resilient member 42g includes a flared narrow neck portion 43h bordered by an upper shoulder portion 43e defining a lower end of the lips and a lower shoulder portion 43f that extends into a larger flange that fits within a recess 39d in the lower end of the container 10. The recess 39d is adapted to receive the resilient member 42g. Secured within the recess 39d, the resilient member 42g provides a leak proof seal preventing the leakage of fluid inside and outside of the container 10.
The cover 70 may be attached to the container 10 in a variety of ways. For example, and as shown in
As shown in
A second portion of the complimentary attachment mechanism 74 disposed on the collar 30. The second portion of the complimentary attachment mechanism 74 may include a slight recess 78 in the collar 30 adapted to matingly receive the projecting ledge 77 in a secure manner.
When the cover 70 is attached to the collar 30 as shown in
Although the attachment mechanism 74 is shown as a projecting ledge 77 and mating recess 78, it is to be understood that the attachment mechanism 74 can be any attachment mechanism capable of fastening the cover 70 to the collar 30. For example, the attachment mechanism 74 can be embodied as: a threaded fastener; a snap lock connection (such as shown in
A second portion of the complimentary attachment mechanism 74 may be disposed on the collar 30. The second portion of the complimentary attachment mechanism 74 may include a slight recess 78 adapted to matingly receive the projecting ledge 77.
It is also to be understood that the cover 70 may be constructed and adapted for use as a feeding container. That is, a caregiver 2 can use the cover 70 as a feeding bowl by turning it upside down so that the open portion of the cover 70 faces substantially upward forming a lower closed end 75 bowl into which various edible items may be placed. A utensil, such as a spoon or fork may be used to scoop the edible contents from the lower closed end 75 of the cover 70 when used inverted as a bowl or similar container. In such a use, the fastener loop 72 may be conveniently used as a finger hole into which a caregiver, or the like, can secure the bowl in their hand by looping a finger through the loop 72 in the cover 70.
The cover may include various level measurement indicia (such as measurements in teaspoon, tablespoon, cup, liter or the like) so that when used as a bowl-like container, the caregiver can visually identify the quantity amount of an item disposed in the cover 70 when used as a bowl.
The illustrations and examples provided herein are for explanatory purposes and are not intended to limit the scope of the appended claims. It will be recognized by those skilled in the art that changes or modifications may be made to the above described embodiment without departing from the broad inventive concepts of the invention. It is understood therefore that the invention is not limited to the particular embodiment which is described, but is intended to cover all modifications and changes within the scope and spirit of the invention.
This application claims priority to U.S. Provisional Patent Application Ser. No. 61/647,341, filed May 15, 2012; and to U.S. Provisional Patent Application Ser. No. 61/565,972, filed Dec. 1, 2011; the contents of which are hereby incorporated by reference herein in their entirety into this disclosure.
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