Toddler drinking cup

Information

  • Patent Grant
  • 6783020
  • Patent Number
    6,783,020
  • Date Filed
    Friday, November 15, 2002
    22 years ago
  • Date Issued
    Tuesday, August 31, 2004
    20 years ago
Abstract
A cup that is used for children that transitions them from sippy cups to conventional drinking cups. The cup does not require any suction by the child when drinking yet is spill proof when locked for transit. The cup features a reservoir, a top and a lid. Within the top is a central passage and a plate that contains vents. When closed, the lid is flush against the plate and prevents any liquid from leaking. When the lid is rotated open, a gap is exposed between the lid and plate to allow liquid to flow from the reservoir and through the vents to the child's mouth. Regardless of whether the lid is opened or closed, the lid always remains below the top rim of the top.
Description




FIELD OF THE INVENTION




The present invention involves the field of beverage containers. Specifically, the invention is directed to a beverage container for a child, or toddler, the beverage container being suited to transition the child from a sippy cup to a conventional drinking cup.




BACKGROUND OF THE INVENTION




Drinking vessels for infants and children are known. For example, it is desirable to provide cups to meet the special demands created by infants and toddlers. Currently available to meet these needs are spill proof cups, or sippy cups. Sippy cups features valves attached to a lid. Extending outwardly from the lid is a spout. As the child provides suction on the spout, the valve in the lid opens allowing fluid to pass from the reservoir of the cup through the spout and into the child's mouth. Sippy cups are ideal for transitioning an infant from a baby nurser to a cup-like vessel since both container only allow fluid to flow when suction is initiated by the child.




However, transitioning a child from a sippy cup to a conventional drinking cup can be an onerous task. The main difference between a conventional drinking cup and a sippy cup is that a conventional drinking cup requires minimal suction by the child. Furthermore, conventional cups have an open top thus making the cup susceptible to spilling large quantities of beverage whenever the cup is tipped. Furthermore, because there is no spout on a conventional cup, the child must maneuver the rim of the cup to her mouth and lift the cup to allow the fluid to flow into her mouth, thus, increasing the probability and occurrence of a spilling. Thus, it is desirable to provide cups with means to simulate the rim of a conventional cup while providing means achieve portability of the cup with minimal spillage.




SUMMARY OF THE INVENTION




It is thus an object of the present invention to provide cup that helps a child or toddler transition from a sippy cup to a conventional cup.




It is yet another object of the present invention to provide a cup that causes the child or toddler to drink from the rim of a cup rather than a nipple or spout.




It is a further object of the present invention to provide a cup that minimizes the occurrence of leaks and spills while the child is learning how to drink from a cup.




It is still a further object of the present invention to provide a cup that is lightweight, easily used and easily cleaned.




This and other objects and advantages of the present invention are achieved by a container adapted for use by a child, or toddler, that has, e.g., three separable components: a reservoir, a top and a lid. The reservoir serves to hold any potable liquid. The top threads onto the open end of the reservoir. The top optionally includes a plate that extends across the open end of the reservoir. The plate also includes a central passage therein and a groove along its upper perimeter. A rim projects and extends upwardly from the plate of the top. The lid includes an upper disc portion and a lower cylindrical portion projecting and extending from the bottom surface of the lid. The bottom of the upper disc portion has a perimeter edge that extends axially for engaging the groove of the plate. The lower cylindrical portion further includes flexible position tabs that snap onto an internal threaded wall that defines the central opening in the top. Upon attachment, the lid is positioned below the top edge of the upper rim of the top. The perimeter of the lid that touches the top forms a seal that prevents liquid from flowing out. The lid, e.g., is rotatable with respect to the top. The ramp of the internal threads causes, when the lid is rotated, a separation between the disc portion of the lid and the plate of the top. Vents in the plate of the top permit passage of beverage when the disc portion of the lid is separated from the surface of the plate. Regardless of whether lid is in an open or closed position, the lid always remains below the top edge of the rim of the top.




Numerous, other objects, features and advantages of the present invention will readily become apparent from the following detailed description, from the claims and from the accompanying drawings.











BRIEF DESCRIPTION OF THE DRAWINGS




The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an exemplary embodiment of the present invention.





FIG. 1

is a perspective view of a cup in accordance with an embodiment of the present invention;





FIG. 2

is a front elevational view of the reservoir of the cup in accordance with an embodiment of the present invention;





FIG. 3

is a perspective view of the top of the cup in accordance with an embodiment of the present invention;





FIG. 4

is a top view of the top of the cup in accordance with an embodiment of the present invention;





FIG. 5

is a bottom view of the top of the cup in accordance with an embodiment of the present invention;





FIG. 6

is a top perspective view of the lid of the cup in accordance with an embodiment of the present invention;





FIG. 7

is a front elevational view of the lid of the cup in accordance with an embodiment of the present invention;





FIG. 8

is a side elevational view of the lid of the cup in accordance with an embodiment of the present invention; and





FIG. 9

is a bottom perspective view of the lid of the cup in accordance with an embodiment of the present invention.











DETAILED DESCRIPTION OF THE INVENTION




Referring to the drawings and, in particular,

FIG. 1

, there is shown an exemplary embodiment of a container of the present invention generally represented by reference number


10


. The container


10


is preferably substantially cylindrical in shape, but may be of any shape that is adaptable for use as a container by children. For the purposes of describing an exemplary embodiment of the container


10


, the container


10


is illustrated to be cylindrical. Thus, the three main components of container


10


, reservoir


100


, top


200


and lid


300


are substantially cylindrical and/or circular. The number of main components of the container


10


may be varied to be more or less. For example, the reservoir


100


and the top


200


may be formed as a single unitary component. All of the components of the container


10


may be of the same or different materials. For example, a preferred material is a thermoplastic polymer which, e.g., can be a homo-polymer or co-polymer. Examples of thermaplastic polymers include, but are not limited to, polyethylene, polypropylene, polystyrene, high-density polyethylene, low-density polyethylene, linear low-density polyethylene and mixtures thereof.





FIG. 2

depicts a front elevational view of the reservoir


100


. The reservoir


100


may be of any shape that is suitable for holding a liquid. For example, the reservoir


100


may be substantially cylindrical or take the form of a chalice or goblet, as shown in FIG.


2


. One skilled in the art may pick a shape for the reservoir


100


that is suitable for grasping and handling by children. Furthermore, the reservoir


100


should be able to contain a volume of liquid that is suitable for drinking by children. For example, any volume from about five ounces (approx. 147 mL) to about twelve ounces (approx. 355 mL).




Referring to

FIGS. 1 and 2

, the reservoir


100


has base


110


and top end


120


. The base


110


should be designed such that it can support the container


10


when the container


10


is vertical. The top end


120


serves as the exit point for the liquid from the reservoir


100


. The outer surface of the top end


120


has fastening structure


124


thereon. The fastening structure


124


allows top


200


to attach or connect to the reservoir


100


. For example, the fastening structure


124


can be an annular groove, an annular ring or a snap-fit. Preferably, the fastening structure


124


is a spiral or thread. This threading allows the top


200


to be threadably attached to the reservoir


100


. Although not necessary, having the top


200


be detachable from the reservoir


100


allows a user to better access the interior of the reservoir


100


for cleaning and filling.





FIGS. 3-5

show perspective, top and bottom views of the top


200


, respectively. The top


200


has top rim


210


, bottom rim


220


, outer wall


230


and inner wall


240


. Extending across the top


200


and from the inner wall


240


is plate


250


. The plate


250


is situated between the top rim


210


and the bottom rim


220


and parallel to the planes that contain the top rim


210


and the bottom rim


220


. The center of the plate


250


is a circular opening or central passage


252


. Along the perimeter of the central passage


252


is passage wall


254


. The passage wall


254


, e.g., is concentric with the outer wall


230


and the inner wall


240


. Around the top perimeter of the plate


250


is, e.g., a circular seal groove


251


. When the lid


300


is locked in top


200


, the groove


251


is in physical contact with the edge of lid


300


; this is discussed in more detail below. Located adjacent to the multiple guide slots


256


and on the passage wall


254


are position locks


258


. The position locks


258


can be located, e.g., clockwise or counterclockwise from the multiple guide slots


256


depending on the rotation of the lid


300


in the top


200


. For example, if the lid


300


were to be rotated clockwise with respect to the top


200


as viewed from the top, then each position lock


258


is located to the left of a corresponding guide slot


256


when viewing the bottom of the top


200


. The position locks


258


serve to hold lid


300


in an open, or “drink” position. The edge of each arcuate piece of the passage wall


254


between each guide slot


256


and the next locking slot


258


, e.g., between the guide slot


256




a


and the position lock


258




b


, is sloped or tapered as the position tabs


326


travel along such arcuate piece of the passage wall


254


. Also along the inner surface of the passage wall


254


are grooves, or drive ribs


257


. The drive ribs


257


serve as attachment points for the lid


300


, as will be seen later.




Disposed along the plate


250


between the passage wall


254


and the inner wall


240


are vents


260


. The vents


260


extend through the entire thickness of the plate


250


. The vents


260


can be of any shape, number and size. For example, as shown in

FIGS. 3 and 4

, vents


260


are trapezoidal in shape and are twelve in number. When the container


10


is tilted downward, liquid flows from the reservoir


100


and through the top


200


via the vents


260


.





FIGS. 6-9

depict top perspective, front, side and bottom perspective views of the lid


300


, respectively. The lid


300


provides a mechanism to seal the reservoir


100


and the top


200


to prevent any liquid from exiting the container


10


when the lid


300


is sealed. The lid


300


has upper portion


310


and lower portion


320


which are, for exampled, one-piece integrally formed together. The upper portion


310


is, e.g., a disc that has a diameter that approximates that of the inner wall


240


of the top


200


. Along the perimeter of bottom surface of upper portion


210


is edge


316


. For example, the edge


316


projects axially away from the bottom surface of upper portion. The edge


316


should have a thickness that is compatible with the width of groove


251


in the plate


250


. When the lid


300


is inserted in the top


200


and closed, the upper portion


310


of the lid is disposed or oriented below the top rim


210


of top


200


to form a physical seal. Additionally, e.g., when the lid


300


is closed, the upper portion


310


covers the vents


260


and prevents any liquid from flowing out of the reservoir


200


and through the vents


260


. When the lid


300


is opened or in an open position, the lid


300


remains disposed or oriented below the top rim


210


of top


200


. Although it is preferable that the edges of the upper portion


310


touch the inner wall


240


, e.g., to form a physical seal, when the lid


300


is locked or closed, it is not necessary provided that the vents


260


are sufficiently covered by the upper portion


310


when the lid


300


is locked or closed. On the top surface


312


of upper portion


310


is handle


314


. Handle


314


provides a means for a user to easily remove lid


300


from top


200


. Additionally, handle


314


provides a place for a user to grasp when rotating lid


300


.




Projecting from the bottom surface of the lid


300


is the lower portion


320


. Although as depicted in

FIGS. 5-7

, the lower portion


320


is cylindrical and has edge


322


, the lower portion


320


can be any other shape provided that such shape is compatible with the central passage


252


. What is meant by “compatible” is that the central passage


252


and the lower portion


320


have shapes that are similar. For example, if the central passage


252


is circular than the lower portion


320


is cylindrical and the edge


322


is circular. The diameters of the central passage


252


should closely match that of the lower portion


320


.




Along the distal end of the lower portion


320


opposite of the upper portion


310


are position tabs


326


. For example, the bottom portion


320


can have any number of position tabs


326


, preferably three. Each position tab


326


is located along the perimeter of -edge


322


and formed into wall


324


of the lower portion


320


. At the distal end of each position tab


326


is extension


328


, which projects and extends perpendicular and away from the axis of the lower portion


320


. Each extension


328


should match the shape of the guide slot


256


in the top


200


. For example, if the extension


328


has a semi-circular shape, then the guide slot


256


should also have a semi-circular shape. Located along the wall


324


in between the position tab


326


and the upper portion


310


are thread tabs


329


. For example, there is one thread tab


329


for each position tab


326


. The thread tabs


329


are protrusions in the wall


324


that extend radially from the wall


324


of the lower portion


320


. The thread tabs


329


prevent the lid


300


from falling out of the top


200


in the event that the container


10


is ever turned upside-down.




To assemble the container


10


, the top


200


is attached, e.g., by screwing, onto the reservoir


100


. The lid


300


is then inserted into the top


200


with the user ensuring that the position tabs


326


are aligned with the guide slots


256


. As the lid


300


is inserted into the top


200


, the position tabs


326


pass through the guide slots


256


. Once the lid


300


is fully inserted into the top


200


, the position tabs


326


engage the edge of the passage wall


254


. This engagement of the position tabs


326


with the edge of the passage wall


254


of the top


200


, e.g., helps to prevent the lid


300


from falling out of the top


200


when the container


10


is inverted or tipped over. As the user rotates the lid


300


in a clockwise fashion, the thread tabs


329


travel along the drive ribs


257


whereas the position tabs


326


travel along the arcuate section of the passage wall


254


. Finally, the lid


300


has a complete physical seal when the edge


316


of upper portion


310


of lid


300


is fully engaged with the groove


251


of the plate


250


of the top


200


.




To use the container


10


, the user rotates in a counterclockwise fashion the lid


300


a set number of degrees. The counter-rotation of the lid


300


creates a gap between the lid


300


and the inner wall


240


when the edge


316


of upper plate


310


of lid


300


is no longer fully engaged with groove


251


of the plate


250


of the top


200


. When the child drinks from the container


10


, fluid flows from the reservoir


100


through the vents


260


of the plate


250


and through the gap between the lid


300


and the inner wall


240


and ultimately into the user's mouth. No or minimal suction by the user is required or needed.




Additional features as known in the art can be added to the container


10


to enhance userability. For example, visual markers can be incorporated into the container


10


to show when the lid


300


is property aligned with top


200


to facilitate easy insertion of the lid


300


into the top


200


. An example of a visual marker is an arrow on the lid


300


and a corresponding arrow on the top


200


. Moreover, audible markers can be incorporated to signal to the user that the lid


300


has been locked: e.g., when the position tabs


326


are rotated into the is position locks


258


, a “click” sound can be heard. Furthermore, to enhance the spill-proofness of the container


10


, a gasket can be incorporated between the lid


300


and top


200


.




It is understood that while the present invention has been described in conjunction with the detailed description thereof that the foregoing description is intended to illustrate and not limit the scope of the invention, which is defined by the scope of the following claims. Other aspects, advantages and modifications are within the scope of the claims.



Claims
  • 1. A cup comprising:a) a reservoir; b) a top, said top having a top rim, an inner wall and a passage wall, said passage wall having a plurality of guide slots, said passage wall defining a central passage; c) a plate having a plurality of vents being disposed between said inner wall and said passage wall, said plate having a seal groove along its top perimeter; d) a lid having an upper portion and a lower portion one-piece inteqrally formed with and extending from said upper portion; said lower portion being sized to fit in said central passage and having a plurality of position tabs located on a distal end of said lower portion, said lower portion of said lid is releasably attached to said top and rotatable with respect to said top, said upper portion having an edge; wherein when said lid is attached to said top, said position tabs pass through said guide slots and engage said passage wall, and said edge engages said seal groove when said lid is in a closed position.
  • 2. The cup of claim 1, wherein said central passage is circular.
  • 3. The cup of claim 1, wherein said lower portion is cylindrical.
  • 4. The cup of claim 1, wherein said passage wall further comprises a plurality of drive ribs.
  • 5. The cup of claim 1, wherein said passage wall further comprises a plurality of position locks.
  • 6. The cup of claim 1, wherein said plate is substantially parallel to said top rim.
  • 7. The cup of claim 1, wherein said lid further comprises a handle.
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