Portable food container cover with detachable utensil

Information

  • Patent Grant
  • 6604646
  • Patent Number
    6,604,646
  • Date Filed
    Friday, January 11, 2002
    23 years ago
  • Date Issued
    Tuesday, August 12, 2003
    21 years ago
Abstract
A cover for a portable food container comprising a cover body and a utensil. The utensil includes a head piece and a handle piece. The head piece and the handle piece are each detachably secured to the cover body and are configured for assembly to each other upon detachment from the cover body to form the utensil. In one preferred embodiment, the handle piece includes a reinforcement for limiting longitudinal bending thereof. In an alternative embodiment, the cover further includes a protective film resealably secured to the cover body.
Description




BACKGROUND OF THE INVENTION




The present invention relates to a cover for a portable food container. More particularly, it relates to a cover incorporating a detachable utensil, the cover designed for improved performance and cost effective mass production.




A variety of different of snack food andlor drink products are packaged in relatively small, single serving containers. For example, yogurt, pudding, soup, etc. are all available in single serving packages. Consumers have expressed a strong interest in the convenience presented by this packaging technique. Namely, with a small, single serving package, the consumer is able to easily transfer the packaged food from one location (e.g., home) for consumption at another location (e.g., work, outdoor event, etc.).




Many of the available single serving food products are consumable without the use of a separate eating utensil. For example, relatively solid snack food items, such as cheese sticks and candy bars, can be eaten by hand. Similarly, drink products, such as soda pop and fruit drinks, are typically consumed directly from the package or container, without the need for an eating utensil.




A third category of consumable snack items relates to semi-liquid items such as yogurt, cottage cheese, oatmeal, etc., or food items that are normally eaten hot or cold such as soup or ice cream. Consumption of these types of food normally requires a spoon, fork or similar utensil. In other words, the relatively liquid snack food items are not solid enough to be grasped by the consumer's hand, and have too high a viscosity to be drunken. Soups frequently contain solid pieces dispersed in a liquid broth. Along these same lines, the containers associated with semi-liquid food items are normally rigid and therefore do not facilitate direct consumption. Alternatively, it may be difficult for a consumer to handle directly a frozen food item or an item that is served hot. In still other food applications, foods may require mixing for best use prior to consumption. For example, “Sundae” style yogurt contains a layer of fruit sauce that is desirably mixed with the yogurt prior to consumption.




In light of the above, consumers are normally required to provide their own eating utensil to consume a single serving container of semi-liquid or temperature sensitive food. Occasionally, however, the consumer may not have ready access to such a utensil. For example, a consumer may desire to consume a single serving container of yogurt at a park. If the consumer forgets to bring a spoon with him or her, it is quite likely that the yogurt will not be consumed. The resulting frustration may dissuade that same consumer from purchasing the product again in the future. Similarly, a potential purchaser may decide against initially trying a particular product due to a perceived inconvenience in consumption. Obviously, these lost sales opportunities are of great concern to food product manufacturers. As such, any efforts to alleviate the consumption problem associated with semi-liquid food and/or temperature sensitive items will likely provide the particular food product manufacturer with a distinct competitive advantage.




One possible solution to the above-described problem is to provide an eating utensil with the product packaging. As a point of reference, one generally accepted snack food packaging approach entails an open-ended container and an associated lid or cover. A food item is maintained within the container. The cover normally seals the open end of the container, but is removable so as to provide access to the food. With this in mind, attempts have been made to incorporate an eating utensil into the packaging configuration. U.S. Pat. No. 5,705,212, for example, describes a food package having a foldable spoon disposed in a storage compartment formed underneath the cover. While this approach does directly provide the consumer with an eating utensil, it is likely not a viable solution from a cost standpoint. In terms of mass production, the increased packaging expense associated with providing a separate spoon element, in conjunction with the additional manufacturing steps of locating the spoon within a small compartment, likely renders this design cost prohibitive. Alternatively, other efforts have been made to integrally form a detachable spoon or other utensil into the cover. While this approach is more cost effective, certain other issues remain. For example, the integrally formed utensil may fail during normal use where the spoon does not have sufficient rigidity. Additionally, it may be difficult, if not impossible, to reseal the cover to the container once the spoon has been removed therefrom. Conversely, even a slight increase in spoon thickness to improve performance may result in an unacceptable increase in overall production costs. Other unforeseen manufacturing and design concerns will likewise increase the production costs and cycle time, potentially beyond a cost effective level.




Consumers continue to demand snack food items packaged in convenient, single serving containers. However, for certain types of food, the requirement of a separate eating utensil may diminish purchasing enthusiasm. Therefore, a substantial need exists for a portable food container cover having a detachable utensil with optimized performance and manufacturing characteristics.




SUMMARY OF THE INVENTION




One aspect of the present invention provides a cover for a portable food container. The portable food container includes a base and a side wall terminating in a lip opposite the base. With this in mind, the cover comprises a cover body and a utensil. The cover body is configured to selectively receive the lip formed by the container. The utensil includes a head piece and a handle piece. The head piece is detachably secured to the cover body. Similarly, the handle piece is detachably secured to the cover body. Further, at least a portion of the handle piece includes a reinforcement for limiting longitudinal bending of the handle piece. Finally, the head piece and the handle piece are configured for assembly to each other upon detachment from the cover body. In this assembled position, the head piece and the handle piece combine to form the utensil. In one preferred embodiment, the head piece includes a bowl such that the assembled utensil is a spoon. Prior to use by a consumer, the cover is secured to the container via the cover body. When the consumer is ready to consume the contents of the container, the cover is removed from the container. The head piece and the handle piece are detached from the cover body and assembled to form the utensil. The utensil, in turn, is then used by the consumer to consume food maintained in the container. In this regard, the reinforcement limits bending of the handle piece to reduce the potential for disassembly of the handle piece from the head piece during use.




Another aspect of the present invention relates to a cover for a portable food container. The portable food container includes a base and a side wall terminating in a lip opposite the base. With this in mind, the cover comprises a cover body, a head piece, a handle piece and a plurality of breakable tabs. The cover body includes a face member and a skirt extending from an outer periphery of the face member. The face member forms a head opening and a handle opening. The skirt, in turn, is sized to selectively receive the lip formed by the container. The head piece is disposed within the head opening and includes a leading end and a trailing end. Similarly, the handle piece is disposed within the handle opening of the face member and includes a leading end and a trailing end. The plurality of breakable tabs detachably secure the head piece and the handle piece, respectively, to the face member. In this regard, individual ones of the breakable tabs are located to connect both the leading end and the trailing end of the head piece to the face member. Likewise, separate breakable tabs are positioned so as to connect both the leading end and the trailing end of the handle piece to the face member. Finally, the head piece and the handle piece are configured for assembly to each other upon detachment from the face member to form a utensil. In one preferred embodiment, the head piece includes a bowl such that the assembled utensil is a spoon.




Yet another aspect of the present invention relates to a cover for a portable food container defined by a base and a side wall forming a lip. The cover comprises a cover body, a head piece, a handle piece and a plurality of gate markings. The cover body includes a face member and a skirt. The skirt extends from an outer periphery of the face member and is sized to selectively receive the lip. The head piece and the handle piece are each detachably secured to the face member. Further, the head piece and the handle piece are configured for assembly to each other upon detachment from the face member to form a utensil. In one preferred embodiment, the head piece includes a bowl such that the assembled utensil is a spoon. Finally, the plurality of gate markings is indicative of a plurality of plastic injection gates. Thus, the cover is formed by a device incorporating a plurality of plastic injection gates that result in the plurality of gate markings.




Yet another aspect of the present invention relates to a cover for a portable food container defined by a base and a side wall forming a lip. The cover comprises a cover body, a head piece and a handle piece. The cover body includes a face member and a skirt. The skirt extends downwardly from an outer periphery of the face member such that the face member defines an upper most plane of the cover. The head piece and the handle piece are detachably secured to the face member. Further, the head piece and the handle piece are configured for assembly to each other upon detachment from the face member to form a utensil. In one preferred embodiment, the head piece includes a bowl such that the assembled utensil is a spoon.




Yet another aspect of the present invention relates to a cover for a portable food container. The portable food container includes a base and a side wall terminating in a lip opposite the base. The cover comprises a cover body, a utensil and a protective film. The cover body includes a face member and a skirt. The skirt extends from an outer periphery of the face member and is sized to selectively receive the lip formed by the container. The utensil is formed in the cover body and includes a head piece and a handle piece. Each of the head piece and the handle piece are detachably secured to the face member. Further, the head piece and the handle piece are configured for assembly to each other upon detachment from the cover body to form the utensil. In one preferred embodiment, the head piece includes a bowl such that the assembled utensil is a spoon. Finally, the protective film is resealably secured to the cover body. The protective film provides a sanitary seal for the head piece and the handle piece. Prior to use, the cover is mounted to the container via the skirt. To access the contents of the container, a consumer simply removes the cover from the container. Once removed, the head piece and the handle piece are detached from the face member and assembled to form a utensil. As part of this detachment process, or for other reasons, the protective film may partially disengage the cover body. However, the protective film can be resealed to the cover body and the cover body resecured to the container so as to protect any remaining food contents.




Yet another aspect of the present invention provides a cover for a portable food container defined by a side wall forming a lip. The cover comprises a cover body, a utensil, a plurality of breakable tabs, a plurality of gate markings and a protective film. The cover body includes a face member and a skirt. The face member forms a head opening and a handle opening. The skirt extends downwardly from an outer periphery of the face member such that the face member defines an upper most plane of the cover body. Further, the skirt is configured to selectively receive the lip formed by the container. The utensil includes a head piece and a handle piece. The head piece is disposed within the bowl opening and defines a leading end and a trailing end. Several of the plurality of breakable tabs detachably connect the head piece to the face member, including the leading end and the trailing end. The handle piece is disposed within the handle opening and defines a leading end and a trailing end. Several of the plurality of breakable tabs detachably connect the handle piece to the face member, including the leading end and the trailing end. Upon detachment from the face member, the head piece and the handle piece are configured for assembly to each other to form the utensil. In one preferred embodiment, he head piece includes a bowl such that the assembled utensil is a spoon. The plurality of gate markings is indicative of a plurality of injection mold gates. Finally, the protective film is resealably secured to the cover body.




Yet another aspect of the present invention relates to a method of manufacturing a cover for a portable food container. The cover includes a cover body and a utensil detachably connected to the cover body, the utensil including a head piece and a handle piece. The method of manufacturing includes providing a mold configured to produce a portable food container cover having a desired shape and size, and including a detachable utensil. A plurality of gates are formed in the mold. A flowable plastic is injected into the mold via the plurality of gates to form the portable food container cover. Finally, the portable food container cover is removed from the mold. By employing a plurality of gates, the above process greatly reduces the overall costs of manufacture.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective, exploded view of a cover in accordance with the present invention, shown in conjunction with a portable food container;





FIG. 2A

is a top, elevational view of the cover of

FIG. 1

in accordance with the present invention;





FIG. 2B

is a bottom, elevational view of the cover of

FIG. 1

in accordance with the present invention;





FIG. 2C

is an enlarged, cross-sectional view of the cover of

FIG. 2A

, along the line


2


C—


2


C;





FIG. 3

is a cross-sectional view of the cover in accordance with the present invention, partially assembled to a portable food container;





FIG. 4

is a cross-sectional view of the cover in accordance with the present invention, assembled to a portable food container;





FIG. 5

is a perspective view of the cover in accordance with the present invention in a deflected state;





FIG. 6

is a perspective, exploded view of a spoon detached from the cover;





FIG. 7

is a bottom, perspective view of the assembled spoon of

FIG. 6

;





FIG. 8

is a side, elevational view of the assembled spoon of

FIG. 6 and a

portable food container.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




One preferred embodiment of a cover


10


is shown in FIG.


1


. As a point of reference, the cover


10


is shown in conjunction with a portable food container


12


. Disposed within the container


12


is a food item such as yogurt (not shown). The container


12


includes a base


14


and a side wall


16


. The side wall


16


extends from the base


14


and forms a lip


18


at an open end opposite the base


14


. In general terms, the container


12


is sized to be portable, preferably maintaining a single serving or multiple servings of food. Because the container


12


is in direct contact with food, a material approved for food contact should be employed, as is well known in the art. The skilled artisan will appreciate that in other variations, containers


12


can be fabricated wherein the base


14


and the side wall


16


are integrally formed. The side wall


16


is depicted in

FIG. 1

as being frusto conically shaped. Alternatively, the side wall


16


can be any of a number of different shapes, including cylindrical, rectangular, square, etc. The side wall


16


can be continuous as depicted or formed of separated pieces.




In one preferred embodiment, the cover


10


includes a protective film


30


, a cover body


32


and a utensil (shown generally at


34


). As described in greater detail below, the cover body


32


is configured to be releasably secure to the lip


18


formed in the container


12


. The utensil


34


includes a head piece


36


and a handle piece


38


, each of which are detachably secured to the cover body


32


. In one preferred embodiment, the utensil


34


is a spoon, with the head piece


36


configured as a bowl piece. As described below, however, the utensil


34


may assume a wide variety of forms, including a fork, spork (i.e., a combined fork and spoon) or knife. Finally, the protective film


30


is resealably secured to the cover body


34


.




One function of the protective film


30


is to provide a sanitary seal for the head piece


36


and the handle piece


38


, and is preferably shaped in accordance with the cover body


32


. Thus, in the embodiment shown in

FIG. 1

, where the cover body


32


is generally circular, the protective film


30


is likewise circular in shape. While a wide variety of film materials may be used for the protective film


30


, the material selected preferably exhibits a high degree of clarity, such as that found with polystyrene (PS). To this end, PS facilitates rapid manufacture in that PS is relatively stiff and is therefore readily removable from a backing material. It should be noted, however, that any other similar polymer-type film may be employed. To this end, the protective film


30


need not necessarily be clear but may be tinted, translucent or even opaque. Additionally, the protective film


30


may include indicia (not shown), such as a manufacturer trademark or trade name, product description, etc. Finally, while the protective film


30


does serve to protect the utensil


34


from contamination, the protective film


30


is not a necessary element of the present invention. In other words, the cover


10


will function without the protective film


30


. A second function of the protective film is to provide the cover


10


with a reclosure feature for when only a portion of the food contents is consumed.




The cover


10


is shown in greater detail in

FIGS. 2A-2C

. For purposes of illustration, the cover


10


is depicted in

FIGS. 2A-2C

with the protective film


30


(

FIG. 1

) removed. The cover


10


shown in

FIGS. 2A-2C

includes the cover body


32


, the head piece


36


, and the handle piece


38


each detachably secured to the cover body


32


by a plurality of breakable tabs


40


.




The cover body


32


preferably includes a face member or portion


42


, a downwardly extending skirt


44


and a plurality of spaced apart support runners or ribs


46


(FIG.


2


B). Further, as best shown in

FIG. 2B

, each of the plurality of support runners


46


project radially inwardly from the skirt


44


along the face member


42


.




The face member


42


is preferably substantially planar, defining a top surface


50


and a bottom surface


52


. Further, the face member


42


is fabricated to include a head opening


54


and a handle opening


56


. The shape of the head opening


54


corresponds with, and is slightly larger than, a shape of the head piece


36


; whereas the handle opening


56


is shaped in accordance with, and is slightly larger than, a shape of the handle piece


38


. In one preferred embodiment, the face member


42


is circular corresponding with the container


12


(FIG.


1


), although any other shape is acceptable. In a preferred embodiment, and as shown most clearly in

FIGS. 2A and 2B

, the head opening


54


and the handle opening


56


are entirely closed relative to the skirt


44


. In other words, the face member


42


preferably includes material between the entire periphery of each of the head opening


54


and the handle opening


56


, and the skirt


44


.




As best shown in

FIG. 2C

, the downwardly extending skirt


44


includes a first section


60


, a shoulder or ridge


62


and a second section


64


. The first section


60


projects from the face member


42


and is connected to the second section


64


by the ridge


62


. In this regard, the first section


60


has a diameter less than a diameter of the second section


64


such that the ridge


62


extends radially outwardly from the first section


60


to the second section


64


. With this preferred configuration, a second, similarly constructed cover body (not shown) can be stacked on top of the cover body


32


, with the skirt portion of the second cover body nesting against the ridge


62


. Finally, the second section


64


is configured to releasably engage the lip


18


(

FIG. 1

) of the container


12


(FIG.


1


). To this end, the second section


64


preferably forms an annular groove


66


that is sized to engage the lip


18


.




The plurality of support runners


46


are provided to assist in proper assembly of the cover body


32


to the container


12


(FIG.


1


), as well as to facilitate a more rigid interface between the two components. In this regard, each of the plurality of support runners


46


terminate at the annular groove


66


in the skirt


44


and are preferably uniformly spaced about the circumference of the bottom surface


52


of the face member


42


. By uniformly spacing the plurality of support runners


46


, a relatively uniform force distribution across the cover body


32


can be achieved, although a slight deviation to this preferred uniform spacing is acceptable. As best shown in

FIG. 2B

, formation of the bowl opening


54


and/or the handle opening


56


may limit an allowable length of one or more of the plurality of support runners


46


. Preferably, however, each of the support runners


46


has a substantially similar size. So that the plurality of support runners


46


do not overly diminish flexibility of the cover body


32


, a ratio of a diameter of the cover body


32


to a length of each of the plurality of support runners


46


is preferably greater than approximately 15:1; more preferably 20:1, although other dimensions are equally acceptable. For example, where the cover body


32


has a diameter of 80 mm, each of the plurality of support runners


46


will preferably have a length of approximately 4 mm. Notably, by incorporating the plurality of support runners


46


as opposed to a continuous strip of material, the total amount of material required for the cover body


32


, and thus the per unit cost, is greatly reduced. However, an adequate number of support runners


46


are required to sufficiently support the cover body


32


relative to the container


12


. In this regard, preferably at least nine support runners


46


are provided; most preferably twelve support runners


46


.




Still referring to

FIGS. 2A-2C

, the head piece


36


is sized to be disposed within the head opening


54


and includes a food retaining means


70


and a neck


72


. In one preferred embodiment, as shown in

FIGS. 2A-2C

, the utensil


34


is a spoon. With that preferred design, the head piece


36


is a bowl piece such that the food retaining means


70


is a bowl. Alternatively, the food retaining means


70


may be fork tines, a knife blade, a spork body, etc. The food retaining means


70


and the neck


72


are preferably integrally formed and combine to define a leading end


74


, a trailing end


76


, a top surface


78


and a bottom surface


80


of the head piece


36


. Importantly, the terms “top surface” and “bottom surface” are with reference to a desired orientation of the head piece


36


upon removal from the face member


42


and assembly to the handle piece


38


, as described in greater detail below. This direction terminology does not limit orientation of the head piece


36


relative to the face member


42


. The trailing end


76


forms a coupling means, preferably including a pair of slots


82


separated by a finger


84


. Finally, as best shown in

FIG. 2B

, the head piece


36


preferably includes a reinforcement


86


and an indicia


88


. The reinforcement


86


is, in one preferred embodiment, a centrally disposed rib extending in a longitudinal fashion along the bottom surface


80


from the neck


72


to the food retaining means (or bowl)


70


. The reinforcement


86


is provided to limit longitudinal bending of the head piece


36


. The indicia


88


is preferably inscribed on the top surface


78


of the head piece


36


and, as described below, is provided to assist a user (not shown) in properly orienting the head piece


36


relative to the handle piece


38


upon detachment from the face member


42


. In one preferred embodiment, for example, the indicia


88


is a trademark.




In one preferred embodiment, the head piece


36


has a length (from the leading end


74


to the trailing end


76


) greater than 6.0 centimeters, more preferably greater than 6.5 centimeters, although other dimensions are equally acceptable. Further, the head piece


36


is preferably sized to provide sufficient surface area for a user to retrieve and transfer food, while also establishing an appropriate overall length. Thus, in one preferred embodiment, where the head piece


36


is configured to include a bowl, the neck


72


has a length greater than one-third a length of the bowl


70


.




The handle piece


38


is preferably sized to be disposed within the handle opening


56


in the face member


42


, and includes a base portion


100


and a reinforcement


102


. The base portion


100


defines a leading end


104


, a trailing end


106


, a top surface


108


and a bottom surface


110


. A coupling means is preferably formed at the trailing end


106


and, in one preferred embodiment, includes a pair of posts


112


. Importantly, the terms “top surface” and “bottom surface” are with reference to a desired orientation of the handle piece


38


upon removal from the face member


42


and assembly to the head piece


36


, as described below. This directional terminology does not limit possible orientation of the handle piece


38


relative to the face member


42


. In other words, as shown in

FIGS. 2A-2C

, the top surface


108


of the handle piece


38


may be adjacent the bottom surface


52


of the face member


42


; whereas the bottom surface


110


of the handle piece


38


is adjacent the top surface


50


of the face member


42


.




In one preferred embodiment, the reinforcement


102


of the handle piece


38


includes a plurality of ribs


114




a-




114




c.


As best shown in

FIG. 2A

, each of the plurality of ribs


114




a-




114




c


extend in longitudinal fashion along the base portion


100


. In one preferred embodiment, three of the ribs


114




a-




114




c


are provided; with two of the ribs


114




a,




114




b


positioned at opposite sides of the base portion


100


, respectively, and a third rib


114




c


centrally located relative to the base portion


100


. Alternatively, any other number of ribs may be employed. For example, only the central rib


114




c


may be included. Regardless of the exact number, the plurality of ribs


114




a-




114




c


serve to limit longitudinal bending of the handle piece


38


. In light of this strengthening characteristic, the amount or thickness of the base portion


100


can be reduced, thereby reducing the per unit cost while increasing overall stiffness. With this in mind, it is preferred that the ribs


114




a-




114




c


have a thickness greater than a thickness of the base portion


100


. For example, in one preferred embodiment, the base portion


100


has a thickness of approximately 0.04 inch (0.1 mm), whereas each of the ribs


114




a


-


114




c


has a thickness (or extension from the base portion


100


) of 0.07 inch (0.2 mm). On a mass production basis, this presents a substantial savings over a handle piece comprised solely of a base portion having a thickness of 0.1 inch (0.2.5 mm). Pointedly, a so-constructed handle piece


38


has been shown to be approximately 25% stiffer (per unit length) than a handle piece having a base portion of 0.07 inch thickness and no reinforcement, while using approximately 15% less plastic (per unit length). Obviously, other dimensional characteristics are acceptable, as are other configurations for the reinforcement


102


. For example, the reinforcement


102


may be an angularly extending rib, a small block of material, etc.




In one preferred embodiment, the handle piece


38


further includes indicia


116


inscribed along the top surface


108


. The indicia


116


can visually or tactually assist a user (not shown) in properly orientating the handle piece


38


relative to the head piece


36


upon detachment from the cover body


32


. In one preferred embodiment, the indicia


116


is a trademark or trade name. Alternatively, other letters, numbers or symbols may be used. Even further, the indicia


116


may be eliminated entirely.




The handle piece, in one preferred embodiment, has a length (from the leading end


104


to the trailing end


106


) greater than 5.5 centimeters, more preferably at least 6.0 centimeters, although other dimensions are acceptable.




The head piece


36


and the handle piece


38


, respectively, are detachably secured to the face member


42


by the plurality of breakable tabs


40


. As shown in

FIGS. 2A and 2B

, the plurality of tabs


46


extend from various locations along the outer periphery of both the head piece


36


and the handle piece


38


. In a preferred embodiment, the plurality of tabs


40


are located to provide relatively uniform support to the head piece


36


and the handle piece


38


, respectively. For example, tabs


40


are provided not only along sides of the head piece


36


, but also at least one of the tabs


40




a


connects the leading end


74


of the head piece


36


to the face member


42


, and at least another one of the tabs


40




b


connects the trailing end


76


to the face member


42


. Similarly, at least one of the tabs


40




c


is positioned to connect the leading end


104


of the handle piece


38


to the face member


42


, and another one of the tabs


40




d


connects the trailing end


106


to the face member


42


. It should be understood that more than one tab


40


may be provided to connect the respective leading ends


74


,


104


and trailing ends


76


,


106


to the face member


42


.




In one preferred embodiment, the cover body


32


, the head piece


36


, the handle piece


38


and the breakable tabs


40


are integrally formed from a plastic material. For example, a polypropylene material may be used. Alternatively, any other relatively rigid polymer that is preferably conducive to injection molding may be useful. Preferably, however, the selected material is approved for contact with food.




One preferred method of integrally forming the cover body


32


, the head piece


36


, the handle piece


38


and the plurality of breakable tabs


40


is plastic injection molding. To this end,

FIG. 2A

depicts a plurality of gate markings


120




a-




120




d


in the cover


10


. The plurality of gate markings


120




a-




120




d


are indicative of a manufacturing process in which a mold is provided with a plurality of gates. In one preferred embodiment, four gates, and therefore four gate markings


120




a-




120




d,


are provided. By utilizing a plurality of gates, as opposed to a single gate, the cycle time required to produce the cover


10


is greatly reduced. For example, it has been found that a production capacity for a four gate mold is approximately six times greater than a single gate mold. As shown in

FIG. 2A

, the plurality of gate markings


120




a-




120




d,


and therefore the plurality of gates used in conjunction with the mold used to produce the cover


10


, are balanced to facilitate a relatively uniform plastic flow. To this end, the mold may be definable by a cover body section for forming the cover body


32


; a head section for forming the head piece


36


and a handle section for forming the handle piece


38


. With this construction in mind, the gate marking


120




a


and the gate marking


120




b


are positioned at opposite sides of the face member


42


. A third one of the gate markings


120




c


is positioned in the head piece


36


, whereas a fourth one of the gate markings


120




d


is located within the handle piece


38


. Alternatively, any other number and location of gate markings, and therefore gates, may be used. For example, one or all of the gate markings


120




a-




120




d


may formed on the bottom surface


52


of the face member


42


. In addition to reducing fabrication cycle time, utilization of a plurality of gates also can aid in provision of highly uniformly shaped lid elements.




Following manufacture of the cover body


32


, the head piece


36


, the handle piece


38


and the breakable tabs


40


, the protective film


30


(

FIG. 1

) is secured to the cover body


32


. In one preferred embodiment, the protective film


30


is secured to the face member


42


. To effectuate a more complete engagement between the face member


42


and the protective film


30


, the face member


42


, and in particular the top surface


50


, defines an upper most surface for receiving the protective film


30


. In other words, the skirt


44


, the head piece


36


and the handle piece


38


do not project above a plane of the top surface


50


. Further, in one preferred embodiment, the face member


42


encloses each of the head opening


54


and the handle opening


56


relative to the skirt


44


such that a continuous engagement surface is provided. The top surface


50


of the face member


42


, the top surface


78


of the head piece


36


and the ribs


114




a-




114




c


of the handle piece


38


may all be the same plane, such that at least a portion of the head piece


36


and the handle piece


38


receive the protective film


30


. However, it is preferred that the head piece


36


and the handle piece


38


do not extend above the top surface


50


of the face member


42


. For example, where the head piece


36


includes a bowl (the food retaining means


70


in FIG.


2


C), the head piece


36


is orientated relative to the face member


42


such that the convex extension of the bowl


70


projects downwardly below the top surface


50


. By mounting the protective film


30


to the face member


42


instead of an annular shoulder or similar body, a more complete engagement is achieved. Thus, the face member


42


provides a relatively large bonding area for receiving the protective film


30


. As a result, a more complete engagement between the protective film


30


and the cover body


32


is achieved.




In one preferred embodiment, the protective film


30


is secured to the face member


42


via a pressure sensitive adhesive. For example, a hot melt adhesive such Aromelt®, available from Ashland Chemical, may be used. Alternatively, any other hot melt adhesive or other type of adhesive may be useful. Preferably, however, the selected adhesive conforms with applicable national standards (such as in U.S.A. 21 Code of Federal Regulations 175.125) relating to materials in direct or indirect contact with various foods. Importantly, the particular adhesive employed preferably allows for repeated partial or full removal and resealing of the protective film


30


to the face member


42


. In other words, the protective film


30


may be partially or completely peeled away from the face member


42


, and then later resealed. To this end, the selective adhesive preferably has a bond strength that allows for partial or full removal of the protective film


30


by a user (not shown).




Once the cover


10


, including the protective film


30


, is complete, the cover


10


may then be assembled to the container


12


as shown in FIG.


3


. With one preferred mass production technique, the cover


10


is located above the container


12


and positioned at a slight angle. More particularly, the cover


10


is maneuvered toward the container


12


such that a portion of the skirt


44


passes over the lip


18


of the container


12


. This motion is continued until one of the plurality of support runners


46


contacts the lip


18


. Because, as previously described, the plurality of support runners


46


are uniformly spaced about the outer circumference of the face member


42


, regardless of the exact rotational position of the cover


10


relative to the machine arm, at least one of the plurality of support runners


46


will contact the lip


18


, thereby preventing damage to the cover


10


. As the cover


10


is directed into complete engagement with the lip


18


(

FIG. 4

) such as with a mechanical roller, the plurality of support runners


46


direct deflection of the skirt


44


such that the lip


18


nests within the annular groove


66


(FIG.


2


C).




Following complete assembly of the cover


10


to the container


12


(as shown in FIG.


14


), the product may be maneuvered to a separate location. For example, the assembled cover


10


/container


12


may be placed within a larger package having a number of similar products. To this end, a pick-and-place handling device including a machine arm (not shown) having a suction cup (not shown) may be used to engage and move the cover


10


/container


12


. In this regard, because the head piece


36


(

FIG. 2A

) and the handle piece


38


(

FIG. 2A

) are connected to the face member


42


(

FIG. 2A

) by at least one of the plurality of breakable tabs


40


(

FIG. 2A

) at the respective ends, contacting the cover


10


with a suction cup will not cause the head piece


36


or the handle piece


38


to deflect away from the face member


38


by an appreciable distance. Similarly, because the protective film


30


is uniformly sealed to the face member


42


, contact by a suction cup or similar device will not cause the protective film to peel away. Notably, where a number of similar products are stacked on top of the cover


10


/container


12


, these same attributes will minimize the potential for defect.




As shown in

FIG. 4

, the container


12


may include a partition


130


sealing the contents of the container


12


. For example, the partition


130


may be a foil material. Use of the foil partition


130


to seal the contents of the container


12


is a widely accepted practice. Optionally, foil partition


130


can be fabricated to include a tab feature (not shown) to facilitate its removal. While the foil partition


130


is impermeable to environmental contaminants, it may be possible to unexpectedly pierce the foil partition


130


with a relatively sharp object. Obviously, any defect imparted into the foil partition


130


will expose the contents of the container


12


to contaminants, potentially rendering the contents inedible. Notably, the foil partition


130


is normally not flexible, but is secured to the container


12


so as to have a slight slack. Thus, the foil partition


130


can deflect slightly either downwardly or upwardly. With this in mind, the closer the outside force is to an outer edge of the foil partition


130


, the more likely it is that the force will pierce the foil partition


130


.




In light of the above concern, the cover


10


is preferably configured to minimize the potential of puncturing of the foil partition


130


. More particularly, the posts


112


of the handle piece


38


present the most likely puncture-causing surface. With reference to

FIGS. 2B and 5

, the handle piece


38


is orientated relative to the face member


42


such that the posts


112


are as close to a center of the face member


42


as possible. With this more central location, the opportunity for the posts


112


to unexpectedly puncture the foil partition


130


in response to a downward force placed upon the cover


10


(such as by the machine arm (not shown) or when another container (not shown) is stacked on top of the cover


10


) is greatly diminished.




With the cover


10


assembled to the container


12


, the entire product is available for use by a consumer (not shown). The consumer removes the cover


10


from the container


12


. The head piece


36


and the handle piece


38


are then detached from the cover body


32


. To this end and with reference to

FIGS. 2A and 5

, the cover body


32


is preferably sufficiently flexible such that the breakable tabs


40


adjacent the leading end


74


of the head piece


36


and the trailing end


106


of the handle piece


38


are broken via a bending force focused on the cover body


32


adjacent the leading end


74


of the head piece


36


. For example, as shown in

FIG. 5

, the cover body


32


has been bent or flexed upwardly. To accomplish this effect, the consumer may grasp the cover body


32


such that the consumer's thumb is placed in the middle of the face member


42


, with the consumer's fingers grasping the skirt


44


adjacent the leading end


74


of the head piece


36


. With this technique, the consumer's thumb serves as a pivot point about which the cover body


32


is bent. As the cover body


32


is maneuvered through this bending motion, the breakable tab


40




a


adjacent the leading end


74


of the head piece


36


and the breakable tab


40




d


adjacent the trailing end


106


of the handle piece


38


are severed such that the leading end


74


of the head piece


36


and the trailing end


106


of the handle piece


38


can easily be grasped apart from the cover body


32


. The remaining tabs


40


are then broken by pulling the head piece


36


and the handle piece


38


away from the cover body


32


. It should be noted that in a preferred embodiment, the protective film


30


(

FIG. 1

) need not be removed from the cover body


32


for detachment of the head piece


36


and the handle piece


38


. In practice, however, the flexing motion may cause a portion of the protective film


30


to disengage or otherwise peel away from the cover body


32


.




Once detached from the cover body


32


, the head piece


36


and the handle piece


38


are assembled to form the utensil


34


, for example a spoon, as shown in FIG.


6


. In the preferred embodiment, the head piece


36


is maneuvered in vertical fashion toward the handle piece


38


such that the pair of posts


112


are engaged within the pair of slots


82


, respectively. Notably, it may be possible for a consumer to mistakenly assemble the head piece


36


to the handle piece


38


such that the head piece


36


is “upside down”. To this end, the indicia


88


in the head piece


36


and the indicia


116


in the handle piece


38


are provided to facilitate proper orientation of the head piece


36


relative to the handle piece


38


. For example, where the indicia


88


and the indicia


116


are identical trademarks, a consumer is more likely to orientate the head piece


36


and the handle piece


38


such that these trademarks are aligned. Alternatively, the indicia


88


and the indicia


116


may provide directional language to facilitate proper orientation.




In addition to the indicia


88


,


116


on the top surfaces


78


,


108


of the head piece


36


and the handle piece


38


, respectively, the head piece


36


and the handle piece


38


may include additional directional indicators. For example, in the assembled position shown in

FIG. 7

, the reinforcement


86


of the head piece


36


aligns with the centrally disposed rib


114




c


of the handle piece


38


. Once again, by locating the reinforcement


86


on the bottom surface


80


of the head piece


36


and the central rib


114




c


on the bottom surface


110


of the handle piece


38


, the consumer is given a clear, visual or tactile indication of proper assembly orientation.




Once assembled, the utensil


34


has a total length at least slightly greater than a depth of the container


12


as depicted in FIG.


8


. It is highly likely that for the overall product configuration to be successful, the consumer (not shown) must be able to reach the bottom of the container


12


with the utensil


34


without the consumer's fingers contacting the contents of the container


12


. For example, where the container


12


maintains a food item that requires stirring prior to consumption, such as a yogurt product with fruit on the bottom, the consumer will likely desire the ability to reach the bottom of the container


12


with the utensil


34


. Thus, in one preferred embodiment, the spoon


34


has an overall length at least 5 millimeters greater than a depth of the container


12


.




Following consumption, the consumer may recycle or otherwise discard the utensil


34


and the container


12


. Where the contents of the container


12


are only partially consumed, however, the consumer may wish to store the remaining contents of the container


12


for future consumption. It will be recalled that during detachment of the head piece


36


and/or the handle piece


38


, a portion of the protective film


30


(

FIG. 1

) may disengage or peel away from the cover body


32


(FIG.


1


). In this regard, the protective film


30


can be resealed to the cover body


32


. The cover body


32


is then secured to the container


12


. Notably, the protective film


30


prevents contaminants from potentially contacting the contents of the container


12


via the head opening


54


(

FIG. 2A

) and/or the handle opening


36


(FIG.


2


A).




The cover of the present invention provides a marked improvement over previous designs. First, the cover includes a detachable utensil to facilitate convenient consumption of food maintained by a portable food container associated with the cover. To this end, the utensil, and in particular the handle portion, is reinforced so as to limit longitudinal bending thereof. Where the reinforcement is a longitudinally extending rib, the overall material thickness of the handle can be greatly reduced, thereby reducing costs. A further savings is realized by utilizing a plastic injection manufacturing technique in which four gates are incorporated. Additionally, by connecting the utensil components to the cover with breakable tabs located along the entire periphery of each component including their ends, the cover itself will have sufficient structural integrity for processing through various manufacture, packaging, and storage steps. Finally, by incorporating a pressure sensitive adhesive, a protective film otherwise associated with the cover can be repeatedly removed and resealed to the cover.




Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the present invention. For example, the head piece and the handle piece have been described as being coupled via a dual post and slot configuration. Alternatively, any other coupling approach is equally acceptable. Similarly, the cover has been shown as including a detachable spoon. Alternatively, any other type of eating utensil, such as a fork, spork, knife, spatula (for spreading a frosting, jam or jelly or soft cheese, for example), etc., can be formed.




A number of attributes have been ascribed to one preferred embodiment the cover of the present invention. However, one or more of these features may be eliminated, yet the resulting cover still perform. For example, the handle piece and the head piece have been preferably described as including directional indicia for facilitating proper orientation in a assembled utensil position. These indicia are not necessarily required. Similarly, the protective film need not necessarily be resealably connected to the cover body. Along these same lines, an upwardly extending shoulder may be provided to receive the protective film.



Claims
  • 1. A cover for a portable food container including a base and a side wall terminating in a lip opposite the base, the cover comprising:a cover body including: a face member forming a head opening and a handle opening, a skirt extending from an outer periphery of the face member, the skirt sized to selectively receive the lip, wherein the skirt extends downwardly from the face member such that the face member defines an upper most plane of the cover; a head piece disposed within the head opening, the head piece defining a leading section terminating at a leading end, a trailing section terminating at a trailing end and a periphery, the head opening being slightly larger than the head piece such that a gap exists between the periphery and the face member; a handle piece disposed within the handle opening, the handle piece defining a leading end and a trailing end; and a first plurality of spaced, breakable tabs extending across the gap to detachably secure the head piece to the face member, wherein the leading end and the trailing end of the head piece, respectively, are each directly connected to the face member by at least a respective one of the first plurality of spaced tabs, the breakable tabs positioned in an upper most plane of the cover body; wherein the head piece and the handle piece are configured for assembly to each other upon detachment from the face member to form a utensil.
  • 2. The cover of claim 1, wherein the head piece includes a bowl such that the utensil is a spoon.
  • 3. The cover of claim 1, wherein the face member defines a top surface and a bottom surface, the cover further comprising:a plurality of support runners each extending between the bottom surface and the skirt for contacting the lip of the container, wherein the plurality of support runners are substantially uniformly spaced.
  • 4. The cover of claim 1, wherein the cover is formed from injection molded plastic, the cover further comprising:a plurality of gate markings indicative of a plurality of plastic injection gates.
  • 5. The cover of claim 4, wherein the plurality of gate markings comprises:a first gate marking in the face member indicative of a first plastic injection gate; a second gate marking in the head piece indicative of a second plastic injection gate; and a third gate marking in the handle piece indicative of a third plastic injection gate.
  • 6. The cover of claim 1, wherein the skirt includes a first section connected to the face member, a second section and an outwardly extending ridge connecting the first section and the second section, the ridge being sized for stackably receiving a second, similarly constructed cover.
  • 7. The cover of claim 6, wherein the face member, the head piece and the handle piece each define an upper surface and a lower surface, and further wherein the first and second plurality of tabs maintain the head piece and the handle piece relative to the face member such that the upper surfaces of the face member, the head piece and the handle piece, respectively, are substantially planar.
  • 8. The cover of claim 1, wherein the handle piece further defines a periphery, the handle opening being slightly larger than the handle piece such that a handle gap exists between the periphery of the handle piece and the face member, the cover further comprising:a second plurality of spaced, breakable tabs extending across the handle gap to detachably secure the handle piece to the face member.
  • 9. The cover of claim 8, wherein the leading end and the trailing end, respectively, of the handle piece are each connected to the face member by at least a respective one of the second plurality of spaced tabs.
  • 10. The cover of claim 1, wherein at least two of the tabs detachably secure the trailing end of the head piece to the face member.
  • 11. A cover for a portable food container including a base and a side wall terminating in a lip opposite the base, the cover comprising:a cover body including: a face member, a skirt extending from an outer periphery of the face member, the skirt sized to selectively receive the lip; a head piece detachably secured to the face member by at least one tab; a handle piece detachably secured to the face member by at least one tab; wherein the head piece and the handle piece are configured for assembly to each other upon detachment from the cover body to form a utensil; a first gate marking in the face member indicative of a first plastic injection gate; a second gate marking in the head piece indicative of a second plastic injection gate; a third gate marking in the handle piece indicative of a third plastic injection gate; and a fourth gate marking in the face member indicative of a fourth plastic injection gate, the fourth gate marking being approximately opposite the first gate marking.
  • 12. The cover of claim 11, wherein the head piece includes a bowl such that the utensil is a spoon.
  • 13. The cover of claim 11, wherein the face member forms a head opening and a handle opening, and further wherein the head piece is disposed within the head opening and the handle piece is disposed within the handle opening, the cover further comprising:a plurality of breakable tabs detachably securing the head piece and the handle piece to the face member.
  • 14. The cover of claim 11, wherein prior to detachment, the head piece and the handle piece are maintained relative to the face member such that the head piece and the handle piece do not project above the upper most plane defined by the face member.
  • 15. A cover for portable food container including a base and a side wall terminating in a lip opposite the base, the cover comprising:a cover body including: a planar face member, a skirt including a first section, a shoulder, and a second section, the first section extending downwardly from an outer periphery of the face member such that the face member defines an upper most plane of the cover, the shoulder extending radially outwardly from the first section, and the second section extending downwardly from the shoulder with that the second section defines an outer diameter greater than the first section and is sized to selectively receive the lip; a head piece detachably secured to the face member; and a handle piece detachably secured to the face member; wherein the head piece and the handle piece are configured for assembly to each other upon detachment from the cover body to form a utensil.
  • 16. The cover of claim 15, wherein the head piece includes a bowl such that the utensil is a spoon.
  • 17. The cover of claim 15, wherein the cover is formed from injection molded plastic, the cover further comprising:a plurality of gate markings indicative of a plurality of plastic injection gates.
  • 18. The cover of claim 15, wherein the plurality of gate markings comprises:a first gate marking in the face member indicative of a first plastic injection gate; a second gate marking in the head piece indicative of a second plastic injection gate; and a third gate marking in the handle piece indicative of a third plastic injection gate.
  • 19. The cover of claim 15, wherein the face member forms a head opening and a handle opening, and further wherein the head piece is disposed within the head opening and the handle piece is disposed within the handle opening, the cover further comprising:a plurality of breakable tabs detachably securing the head piece and the handle piece to the face member.
  • 20. The cover of claim 15, wherein a downward extension of the head piece and the handle piece relative to the planar face member is not greater than a downward extension of the first section relative to the planar face member.
  • 21. A cover for a portable food container including a base and a side wall terminating in a lip opposite the base, the cover comprising:a cover body including: a planar face member forming a head opening and a handle opening, a skirt including a first section, a shoulder, and a second section, the first section extending downwardly from an outer periphery of the face member such that the face member defines an upper most plane of the cover body, the shoulder extending radially outwardly from the first section, and the second section extending downwardly from the shoulder such that the second section defines an outer diameter greater than the first section and is sized to selectively receive the lip; a utensil including: a head piece disposed within the head opening, the head piece defining a leading section terminating at a leading end and a trailing section terminating at a trailing end, a handle piece disposed within the handle opening, the handle piece defining a leading end and a trailing end; a plurality of breakable tabs detachably securing the head piece and the handle piece to the face member, wherein the leading end and the trailing end of the head piece and the handle piece, respectively, are each directly connected to the face member by at least a respective one of the plurality of tabs; wherein the head piece and the handle piece are configured for assembly to each other upon detachment from the face member to form the utensil; a first gate marking in the face member indicative of a first plastic injection gate; a second gate marking in the head piece indicative of a second plastic injection gate; a third gate marking in the handle piece indicative of a third plastic injection gate; and a fourth gate marking in the face member indicative of a fourth plastic injection gate, the fourth gate marking being approximately opposite of the first gate marking.
Parent Case Info

This application is a continuation of U.S. patent application Ser. No. 09/249,401, filed Feb. 12, 1999, the teachings of which are incorporated herein by reference.

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Continuations (1)
Number Date Country
Parent 09/249401 Feb 1999 US
Child 10/044573 US