Patent Publication Number: US-2022228793-A1

Title: Container assembly and lid therefor with thermal reservoir

Description:
FIELD OF THE INVENTION 
     This invention relates to the field of portable containers having thermal storage reservoirs. 
     BACKGROUND OF THE INVENTION 
     Insulated coolers may have a generally box-shaped form, with the lid of the box being movable between closed and open positions to govern access to the cooler. The lid fits the body closely so the contents of the cooler are kept cool, or, in some instances, warm. Some coolers come with phase changing ice-packs that can be frozen in the refrigerator and then placed in the cooler for use. It would be helpful to be able to fill the lid with ice, and to use it as a thermal reservoir to keep the container cooler longer. Molded plastic parts may tend to deform if over-filled and frozen. It may be helpful then, not to overfill the reservoir and for the filler port to be appropriately located and oriented. 
     SUMMARY OF THE INVENTION 
     In an aspect of the invention there is a container lid. It has a hollow body that defines an internal chamber or reservoir. The reservoir has a filler port on the inside of the lid. In use, the filler port is inverted. In another aspect of the invention, there is a cooler lid that has a hollow body. It has an outside wall, an inside wall, and a peripheral wall joining the outside wall to the inside wall. The outside wall, inside wall, and peripheral wall defining boundaries of an internal chamber of the lid. The internal chamber has a filler port. The filler port is inset from the peripheral wall. The filler port has an entrance to the chamber that is intermediate the outside wall and the inside wall. Without regard to orientation of the lid, a first portion of volume of the chamber lies at a level above the entrance of the filler port, and a second portion of volume of the chamber lies at a level below the entrance of the filler port. 
     In a feature of that aspect, the cooler lid has a “fill-to” line formed therein. The “fill-to” line is visible from the filler port. In a further feature, the cooler lid has a projected volumetric envelope. The filler port has a filler pipe. It is contained within the projected volumetric envelope. In a further feature, the filler pipe is mounted to the inside wall of the lid. When the lid is placed upside-down on its outer wall, the filler pipe opens predominantly upward. 
     In another feature, the inside wall includes a peripheral formed section. The peripheral formed section is hollow to define a cavity therewithin. The cavity is in fluid communication with the chamber and forming a portion thereof. When the lid is lying upside-down on the outside wall, the cavity of the peripheral formed section is located predominantly upwardly of the entrance of the filler port into the chamber. In yet another feature, the inside wall has a peripherally extending structural section. The structural section including a hollow channel. The hollow channel is in fluid communication with and is part of the chamber. The channel has a back and a pair of spaced apart legs. The inside wall has a spanning membrane, or web, that extends front to rear and left to right. The channel merges into the inside wall and stands away from the outside wall. When the lid is mounted on a mating container, the entrance of the filler port into the chamber is higher than the hollow channel and lower than the outside wall. 
     In a further feature, at least one of (a) the outside wall; and (b) the inside wall, has at least a first out-of-plane formation formed therein. In yet another feature, the chamber has at least a first portion, a second portion, and a neck defined between the first portion and the second portion. In another feature, the lid is rectangular in plan view, and the inside wall has at least one span-wise stiffener formed therein. The at least one span-wise stiffener extending one of (a) front to rear; and (b) left to right. The span-wise stiffener is structurally connected to the outer wall. The chamber is divided into at least first and second portions by the at least one span-wise stiffener. The first and second regions of the chamber is linked by a neck. In another feature, the lid has an insulated cover that mates with the outside wall thereof. In still another feature, the lid is removably separable from the insulated cover. 
     In another aspect, there is a cooler lid. The cooler lid has a hollow body has an outside wall, an inside wall, and a peripheral wall joining the outside wall to the inside wall. The inside wall has a land for mating engagement with a cooler body. The outside wall, inside wall, and peripheral wall define boundaries of an internal chamber of the lid. The internal chamber has a filler port. The inside wall has a peripheral formation. The peripheral formation includes a land that, in use, engages a mating container body. The inside wall has at least one stiffener extending one of (a) spanwise in a front-to-rear direction; and (b) spanwise in a left-to-right direction. The at least one stiffener divides the internal chamber into at least a first portion and a second portion. The first portion and the second portion are joined by a neck. 
     In a feature of that aspect, the peripheral formation is hollow and has a cavity formed therewithin. The cavity is joined to, and forms part of, the internal chamber. When the cooler lid sits on the cooler body, the peripheral formation defines a channel. The channel of the peripheral formation has a back. The back extends downwardly. The at least one spanwise formation defines a channel that has a back that extends upwardly. 
     In another feature, the at least one spanwise formation defines at least one spanwise extending channel has a back and a pair of legs, the legs extending downwardly of the back of the spanwise extending channel. The peripheral formation defines a peripheral channel. The peripheral channel has a back, an inner leg and an outer leg. The inner leg and the outer leg extend upwardly from the back of the peripheral channel. The inner wall has at least one spanwise extending web. The at least one spanwise extending web is bounded by a combination of the at least one spanwise formation and at least one portion of the peripheral formation. The inner leg of the peripheral channel merges with the at least one spanwise extending web and extending downwardly therefrom. At least one of the legs of the channel of the at least one spanwise formation merges with the spanwise extending web and extends upwardly therefrom. 
     In a further feature, the inside wall of the lid has at least a first spanwise extending web and a second spanwise extending web. A first of the spanwise extending formations is located between, and bounds, one edge of each of the first spanwise extending web and the second spanwise extending web. The peripheral formation bounds at least two other edges of the first spanwise extending web. The filler port is mounted to the first spanwise extending web. In still another feature, the at least one spanwise formation is structurally interconnected to the outside wall at a location inwardly distant from the peripheral formation. 
     In another feature, the outside wall has at least a first out-of-contour formation formed therein, the first out-of-contour formation defining a drink pocket. In still another feature, the at least one spanwise extending formation of the inside wall has a locally extending portion connecting it to the drink pocket of the outside wall. 
     In another feature, the cooler lid has a removable insulated cover. In yet another feature, the outside wall has a contour. The inside wall has a contour. The at least one spanwise extending formation extends upwardly out-of-contour relative to the inside wall. The peripheral formation extends downwardly out-of-contour relative to the inside wall. The filler port is mounted flush with the contour of the inside wall. 
     The features of the aspects of the invention may be mixed and matched as appropriate without need for multiplication and repetition of all possible permutations and combinations. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       These and other aspects and features of the invention may be more readily understood with the aid of the illustrative Figures below, showing an example, or examples, embodying the various aspects and features of the invention, provided by way of illustration, and in which: 
         FIG. 1 a    is a perspective view of a cooler assembly that includes a container lid and a mating container body; 
         FIG. 1 b    is a perspective view of the cooler assembly of  FIG. 1 a    with the lid open; 
         FIG. 1 c    is a front view of the cooler assembly of  FIG. 1   a;    
         FIG. 1 d    is a rear view of the cooler assembly of  FIG. 1   a;    
         FIG. 1 e    is a left-hand side view of the cooler assembly of  FIG. 1   a;    
       Figure if is a right-hand side view of the cooler assembly of  FIG. 1   a;    
         FIG. 2 a    is an isometric view of the lid of the container assembly of  FIG. 1   a;    
         FIG. 2 b    is a top view of the container lid assembly of  FIG. 2   a;    
         FIG. 2 c    is a bottom view of the container lid assembly of  FIG. 2   a;    
         FIG. 2 d    is a front view of the container lid assembly of  FIG. 2   a;    
         FIG. 2 e    is a rear view of the container lid assembly of  FIG. 2   a;    
         FIG. 2 f    is a left-hand side view of the container lid assembly of  FIG. 2   a;    
         FIG. 2 g    is a right-hand side view of the container lid assembly of  FIG. 2   a;    
         FIG. 3 a    is a lengthwise section of the lid of  FIG. 2 c    on staggered section ‘ 3   a - 3   a’;    
         FIG. 3 b    is a lengthwise cross-section of an alternate lid to that of  FIG. 3   a;    
         FIG. 3 c    is a front-to-back section of the lid of  FIG. 2 c    taken on section ‘ 3   c - 3   c’;    
         FIG. 3 d    is a front-to-back section of an alternate lid to that of  FIG. 3   c;    
         FIG. 3 e    is a lengthwise cross-section of another alternate lid to that of  FIG. 3   a;    
         FIG. 3 f    is a perspective view of an internal baffle of the lid of  FIG. 3   e;    
         FIG. 3 g    is a perspective view of another internal baffle of the lid of  FIG. 3   e;    
         FIG. 3 h    is an alternate internal baffle to that of  FIG. 3   f;    
         FIG. 3 i    is an alternate baffle to that of  FIG. 3   g;    
         FIG. 4 a    is a front-to back section of an alternate to the lid of  FIG. 2 a    provided with an insulated external cover; 
         FIG. 4 b    is a lengthwise section of an alternate lid to that of  FIG. 4 a    in which the external insulation cover has raised retainers formed therein; and 
         FIG. 5  is a cross-section of a container assembly such as that of  FIG. 1 a    provided with an insulated cover for the lid and an insulated jacket for the container body. 
     
    
    
     DETAILED DESCRIPTION 
     The description that follows, and the embodiments described therein, are provided by way of illustration of an example, or examples, of particular embodiments of the principles of the present invention. These examples are provided for the purposes of explanation, and not of limitation, of those principles and of the invention. In the description, like parts are marked throughout the specification and the drawings with the same respective reference numerals. The drawings are substantially to scale, except where noted otherwise, such as in those instances in which proportions may have been exaggerated to depict certain features of the invention. Notably, the wall thicknesses of molded parts shown in cross-section have been exaggerated to make them more readily visible to the reader. 
     In this specification reference is made to insulated containers. It should be understood that, within the normal range of temperatures to which human food and human touch is accustomed, although the term “cooler”, or “cooler container”, or “cooler assembly” may be used, such insulated structures may generally also be used to aid in keeping food, beverages, or other objects either warm or hot as well as cool, cold, or frozen. The adjective “insulated” is intended to be given its usual and normal meaning as understood by persons skilled in the art. It is not intended to encompass single layers, or skins, of conventional webbing materials, such as Nylon (t.m.), woven polyester, canvas, cotton, burlap, leather, paper and so on, that are not otherwise indicated as having, or being relied upon to have, particular properties as effective thermal insulators other than in the context of being provided with heat transfer resistant materials or features beyond that of the ordinary sheet materials in and of themselves. Following from Phillips v. AWH Corp., this definition provided herein is intended to supplant any dictionary definition, and to prevent interpretation in the US Patent Office (or any other Patent Office) that strays from the customary and ordinary meaning of the term “insulated”. The Applicant also explicitly excludes cellophane, waxed paper, tin foil, paper, or other single use disposable (i.e., not intended to be re-used) materials from the definition of “washable”. 
     Similarly, this description may use multiple nouns when providing nomenclature for the features annotated in the drawings. The multiple nouns are used as synonyms, and the detailed description is used as a thesaurus to convey understanding at both the specific level and at the broader conceptual level. English often has many terms for the same item, and where multiple terminology is provided, the description is showing that any synonym for the item is to be included in the understanding of the feature, and that it is not limited to one particular noun.  FIGS. 1 a -1 f   , show a container assembly generally as  20 . Container assembly  20  has a first portion  22 , and a second portion  24 . The first portion and the second portion are mutually engageable. The first portion may be thought of, and may also be termed, the container body  22  of the container assembly  20 , be it large or small. The second portion is a closure that mates with container body  22 . The second portion may likewise be termed, and throughout this specification is termed, the lid  24  for the body of the container defined by first portion  22 . Lid  24 , i.e., the second portion, is movable between a closed position and an open position relative to container body  22 . Lid  24  may be, and in the examples illustrated is, removable, and re-usable. In terms of general construction, both container body  22  and lid  24  may be, and as illustrated are, made of blow-molded plastic. A suitable polymer feed stock may be used for this purpose. Container body  22  and lid  24  may be understood to be rigid. One, the other, or both of them may be, and in the examples herein are, hollow. 
     When container assembly  20  sits at rest on a surface such as a table or counter-top, or in a vehicle, the first portion is the lower or bottom, or base portion of container assembly  20 ; and the second portion, being lid  24 , is the upper or top portion. The terms “upper” and “lower” are determined by the direction of gravity when container assembly  20  stands predominantly upright (i.e., it may not always be placed on a precisely flat, level, horizontal surface). That is, lid  22  is above body  24  when container assembly  20  is closed. However, by its nature, container assembly  20  may be inverted to some extent when emptied or washed, and it may be dropped, or carried in a bag or other container in which it is not necessarily always upright. In that sense, the designation “upper” or “lower” or “top” or “bottom” is to some extent arbitrary. 
     In general, first portion  22  may also be referred to as the body of container assembly  20 , and may also be termed a vessel, can, canister, jug, stein, mug, base, container, glass, vase, canteen, tumbler, reservoir, cup and so on. Many different terms could be used. Usually, when container assembly  20  is sitting at rest on a surface such as a table or counter-top, first portion  22  is the lower or bottom, or base portion of container assembly  20 , and second portion  24  is the upper or top portion. Similarly, a variety of names that may be used for second portion  24 . It may be termed a closure, a closure member, a closure assembly, a cap, a lid, a cover, or a top. There are many possible terms that could be used as nomenclature for an object or assembly that mates with, and provides a covering for, the vessel. From this point, first portion  22  will be referred to as the body; and, similarly, second portion  24  will be referred to as the lid. 
     Container assembly  20  may be, and in the example in the Figures is shown as being, a cooler that has a six-sided box shape form. Each of the various sides is generally rectangular, although the upstanding sides may be gently tapered to facilitate molding, for example. The body,  22 , defines a five-sided open-topped box. The space inside the five-sided box is identified as an internal chamber  40  into which objects that the user desires to keep cool or warm (as may be) are placed. The lid  24  defines the sixth side of the box. Lid  24  is movable between open and closed positions to govern access to chamber  40 . The five panels or walls of body  22  may be identified as bottom wall  26 , and an upstanding peripheral sidewall  28  that stands upwardly and away from bottom wall  26 . Peripheral sidewall  28  includes first, second, third, and fourth portions identified as front wall  30 , rear wall  32 , left-hand side wall  34  and right-hand side wall  36  the opening of chamber  40  is identified as  38 ; and, as understood, lid  24  covers, or uncovers, opening  38  when it is closed or opened as may be, thereby governing access to chamber  40 . Clearly, upstanding peripheral sidewall  28  could have more than four sides, or it could have a continuous curved wall, whether circular, oval, elliptical, or some other shape, as may be. For convenience of description, the example will be referred to as having generally rectangular sides. 
     The generally rectangular-sided box is conveniently described in a Cartesian frame of reference, or geometric context, for container assembly  20  more generally. That is, the examples of main body  22  and lid  24  herein have the common feature of an upward or vertical direction, or z-axis, which is nominally vertical when container assembly  20  stands on a horizontal surface, and which is measured upwardly from the first end, or bottom, or base, or bottom wall  26  of main body  22 , however it may be called. Main body  22  has a width across front wall  30  that defines the x-axis or x-direction. Body  22 , and therefore container assembly  20  more generally, has a depth measured in the front-to-back direction that defines the y-axis or y-direction. The upper margins of side walls  30 ,  32 ,  34  and  36  co-operate to define a land or rim  42  with which lid  24  engages. As can be seen, the portions of the rim of the various upstanding the sides may have an intermediate groove or set of grooves  44  that run horizontally and peripherally to provide a shoulder upon which to mount internal dividers or shelves, as may be. Such a horizontal shelf may be a horizontally extending web with a peripheral flange that sits on the shoulder. Similarly rim  42  may include downwardly inset shoulder  46  and an upwardly extending sidewall  48  that terminates at the uppermost margin, or lip, of rim  28  of main body  22  most distant from bottom wall  26 . It may be noted that the corresponding vertical faces of the closures of lid  24  and body  22  may have, and as illustrated do have, a groove in one and a protruding detent in the other such that when the two mate they are forced into contact and must deflect in an interference fit. This interference fit discourages accidental opening of the lid, and aids in keeping the closure sealed or snug when it is closed. The juncture of bottom wall  26  and sidewall  28  is formed to contain liquids, whether they are separate parts that are joined together, or made from a single part that is molded or extruded as a one-piece unit. 
     Main body  22  is hollow, and defines internal chamber  40  in which liquid is contained. The walls of main body  22  are themselves hollow, each having a respective inside wall  52 , and outside wall  54 , and a space or cavity  50  therebetween. In some embodiments, cavity  50  may be filled with insulating material, such as foam insulation. 
     Lid assembly  24  has a lid body  60 . Lid body  60  has an outside wall  62 , and inside wall  64 , and a peripheral wall  66  that extends about the respective peripheral edges of, and joins, outside wall  62  and inside wall  64 . Peripheral wall  66  includes first, second, third, and fourth portions that form the edges, or edge walls of peripheral wall  66  and that are identified as a front wall, rear wall, left hand wall, and right hand wall  72 ,  74 ,  76 ,  78 . Outside wall  62  and inside wall  64  are spanning members that span lid  24  from front to rear walls  72 ,  74  and from left-hand to right-hand walls  76 ,  78 , such that, when lid  24  is mounted to body  22 , lid body  60  extends across and covers, or substantially covers, opening  38 . By spanning opening  38 , and thereby obstructing it, lid  24  serves to retain the contents of chamber  40 . As indicated, the corners of lid  24  may be radiused, as shown, to match the radius of container body  22 . An internal reservoir or internal chamber  100 , is defined within lid  24  and is bounded by inside wall  64 , outside wall  62  and peripheral wall  66 . One or more external formations  68  may be formed in outside wall  62 . External formations  68  can be formed to protrude outwardly from (i.e., stand proud of) the general contour of outside wall  62 , or to intrude into (i.e., be shy of) that contour, or both. In the example illustrated, external formation  68  are be sunken into outside wall  62  to form a well  70 . Well  70  may be of any shape in plan form, but is typically either rectangular or round, and may most often be circular. The well so formed defines a retainer to keep objects from sliding when place on top of lid  24 . Well  70  may also be referred to as a “drink pocket”, since diameter of the well is sized to accommodate the base of a drink can, with room to spare. The deformed side-wall  58  of well  70  functions as a stiffening flange relative to the larger unsupported span of outside wall  62  more generally. Similarly, as seen in  FIG. 2 c   , outside wall  62  may also have a rectangular depression that has the appearance of a name-plate, and which may be embossed with a commercial branding mark of some kind. This out-of-plane rectangular deformation also functions as a stiffener of the unsupported span. 
     The edge defined by peripheral wall  66  of lid  24  may have, and as shown does have, a rabbet or groove  80 . The rabbet has an inwardly extending wall identified as a land  82  that runs around the outside and has a width and footprint sized to seat on the upper edge of the rim of container body  20 . In some instances land  82  may have a gasket. Inwardly of land  82 , lid  24  has a formed section  84 , that extends around inside wall  64  in the manner of a border, or frame (e.g., in the sense of a picture frame). Formed section  84  may be of a variety of shapes when seen in cross-section. It could have the form of a rounded profile rib or hemisphere, for example. In the example shown, formed section  84  has the form of a channel  86  having and back  88  an inner leg  92 , and an outer leg  94 . Inner leg  92  merges with the main flat portion  96  of inside wall  64  at a radiused corner. Outer leg  94  merges with the inner margin, or root, of land  82 . Outer leg  94  is formed to have a mating profile to engage the vertical leg of rim  42  of peripheral upstanding sidewall  28 , being formed with one of the other of a groove or a protruding detent, as noted above. In the example illustrated, lid  24  have the protruding ridge that defines the detent, and body  22  has the groove. It is arbitrary which part has the groove, and which part has the protrusion. Although legs  92  and  94  are shown generally parallel, they may be splayed with a draft angle to facilitate removal from the mold after manufacture. The combined effect of land  82 , outer leg  94 , back  88 , inner leg  92  and the adjacent influenced region of flat portion  96  is to function as a stiffening flange around the outside edge of inside wall  64  more generally. This structure may be termed a flange in one context, but can also be called a channel section or a hat section  90 . It is not necessary that land  82  and flat portion  96  be co-planar. However, it is convenient that they be co-planar. Relative to the plane of inside wall  64  (or, alternatively, relative to any horizontal datum of lid  24 , such as a mid-depth plane, or the plane of land  82 , the stiffener defined by the flange, channel or hat section  90  is formed to protrude inwardly in the z-direction relative to chamber  40 , in the sense of protruding downwardly toward the base of container body  22  when lid  24  is mounted in the closed position on container body  22 . 
     It may be noted that “flat portion  96 ” need not be “flat” in the sense of precisely horizontal or precisely planar, but is seen as being flat in the context of meeting inner leg  92  at an angle such that flat portion  96  functions as a flange relative to the out-of-plane shear web defined by inner leg  92 . This function can be performed even if flat portion  96  is neither precisely horizontal nor precisely planar. It will serve if it is predominantly cross-wise to inner leg  92 , and if it extends generally span-wise either front-to-back-or left-to-right. Inside wall  64  need not define a monolithic horizontal flat web. As discussed below, inside wall  64  may have internal formations. Moreover, inside wall  64  could be formed on a continuous curvature, or set of curvatures to define a continuous are, or a set of lobes, a set of undulations, and so on. In this context, the actual contour of the internal wall, namely inside wall  64 , whatever it may be, defines a liquid-containing barrier, or membrane that defines the lower boundary or inside boundary of chamber  100 . Similarly, the same commentary may apply to outside wall  62 , whatever its actual shape, contour or profile may be, whether or not planar or arcuate, whether or not precisely horizontal, be it arcuate or wavy or otherwise, defines the upper boundary, or outside boundary of chamber  100  when lid  24  is installed on container body  22 . In this explanation the “flat portion” has a continuous surface that has slope continuity. In the case of the “flat portions” the continuous surface may extend in both front-to-back (i.e., y-direction) and side-to side (i.e., x-direction) and so may be a surface of compound curvature. It is distinguished from a stiffener formation, for example, where there is a slope discontinuity. Internal formations  110  and  112  discussed below, and external formation  68 , being large scale departures from the contour of the adjacent spanning web portions  132 ,  134  and  136 , define such slope discontinuities, notwithstanding that their transitions are locally radiused. Of course, if lid  24  is lying on its back, upper and lower are reversed, and if lid  24  is standing on one end for filling, then they are sides, not upper and lower. In the more general sense, outside wall  62  and inside wall  64  define spaced-apart, span-wise extending, opposed boundaries, or boundary surfaces, of chamber  100 . They extend span-wise in both the front-to-rear context and in the left-to-right context. Peripheral wall  66  also defines a boundary surface of chamber  100 , with the various pairs of front and rear walls  72 ,  74  and left-hand and right-hand walls  76 ,  78  being mutually opposed and spaced apart from each other and forming the front, rear, left-hand and right-hand sectors of that boundary extending in the through-thickness direction of lid  24 . 
     In that context, too, flange, or channel, or hat section  90 , however it may be called, defines a peripherally extending stiffener bounding inside wall  64  peripherally, but also contributing to the lower or inside boundary of chamber  100  defined by inside wall  64  in terms of containing liquid. It provides stiffness against bending both side-to side in the x-direction and front to back in the y-direction. In addition, inside wall  64  has additional stiffening in the form of first and second formations  110  and  112 . Although these formations need not be the same, and need not be located symmetrically relative to the lid centerline, whether in the x-direction or the y-direction, nonetheless it is convenient that they be the same (or the same but of opposite hand) and that they be spaced apart from each other symmetrically relative to the front-to-back vertical plane of lid  24 . In this instance, whereas the stiffening of the peripheral flange is inward, first and second formations  110  and  112  are formed outwardly in the z-direction, i.e., away from the base of container body  22  when lid  24  is in the closed position. 
     Formations  110  and  112  have the form of a trench, or channel, running fore-and-aft across the inside of the lid. With lid  24  lying upside down on the ground, formations  110 ,  112  have a back  114 ; a pair of long sides  116 ; and a pair of end walls  118 . The side walls merge into the end walls at radiused corners. Since side walls  116  and end walls  118  are sunken at an angle into inside wall  64 , the radiused corners are conical. Formations  110 ,  112  then form an elongate, generally rectangular pyramidal well  120 . At the well bottom, i.e., at its distal extremity farthest from the main plane of the flat region of inside wall  64 , back  114  has a further set of sockets, or protrusions, identified as dimples  122 . Dimples  122  are truncated circular conical sections. 
       FIGS. 3 b  and 3 d    are intended to illustrate an alternate embodiment, or embodiments, in which there is a lid  180  that may generally be the same as lid  24 , unless otherwise noted. It differs, however, in that it has dimples  184  of its respective formations  110 ,  112  that have narrowed tips  128 . Tips  128  of the section merge with the inside of outside wall  182 . Is this example, wells  178  have been relocated to lie more centrally over dimples  184  as seen in  FIG. 3 b   , such that two dimples  184  merge with each well  70 . Whether part of the same embodiment or a different embodiment, where the lid has no drink pocket wells  70 , or where those wells do not overlie the dimples, there may be larger, more extended depth dimples  186  that have narrowed tips that merge into the outer skin of outside wall  182 , as at  188 ; or, alternatively there may be an arrangement of one or more internal dimples  190  that co-operate with external dimples  192  to yield a structural linkage between inside wall  64  and outside wall  182 . The linking of the inside and outside walls  64 ,  182  may tend to make lid  180  stiffer, and may tend to reduce deflection of outside wall  182  during freezing cycles. That is, at the locations of dimples  184 ,  186 ,  190 ,  192  inside wall  64  and outside wall  182  are joined together in the molded part. The effect of joining the inner and outer walls together is that they mutually stiffen each other, and share the benefit of the stiffening of the channel sections defined by formations  110  and  112 . 
     With or without interconnection of the inner and outer walls, formations  110 ,  112  also act as dividers or partitions that sub-divide internal chamber  100  into sub-volumes or regions  102 ,  104 ,  106 . They would do so even if dimples  122 ,  184 ,  186 ,  190  or  192  were not present. With the presence of dimples the “neck”  126 ,  128  is even more constricted, and, where inside and outside walls  62  and  64  are connected by the dimple structure, the “neck” is then divided into a plurality of sectors, analogous to a perforated strip. Formations  110 ,  112  likewise divide the flat portion  96  of inside wall  64  into three parts or regions  132 ,  134  and  136 . Region  132  extends between, and is bounded by, an end portion  98  and the ends of two long portions  108  of hat section  90 , and first formation  110 . Region  134  is the central region or portion bounded on two ends by the central portions of long side portions  108  of peripheral flange or hat section  90 , and on its two sides by formations  110 ,  112  (i.e., itis between formations  110  and  112 ). Region  136  extends between, and is bounded by, the other end portion  98  and the ends of two long portions  108  of hat section  90 , and second formation  112 . Accordingly, each of the webs defined by regions  132 ,  134  and  136  of flat portion  96  is stiffened along all of its four sides or margins. Whether it is a side portion  108  or an end portion  98 , the peripheral formation is a slope discontinuity that defines a boundary condition along the edge of the flat portion, the boundary condition being that of a hinge of little or no out-of-plane displacement but also no bending moment transmission. It is therefore functionally equivalent to a hinged edge. Similarly, the junction with either of formations  110  or  112  is also a slope discontinuity, and also defines a boundary of little or no out-of-plane deflection, and no bending moment transmission. Each of portions or parts or regions  132 ,  134  and  136  may therefore be conceptualized as a membrane with four hinged edges for the purposes of structural analysis. Moreover, apart from the stiffening achieved, dividing the chamber into sub-volumes in this way may tend to prevent all of the ice from sliding to one end as melting occurs, and may tend to keep it distributed such that there is some ice associated with each sub-volume for a longer time. 
     Inside wall  64  also has a filler port  130 . Filler port  130  includes a filler pipe  144  that has the form of a nipple, or stub,  140 , that is rooted to first region  132  of inside wall  64 . Filler pipe  144  has a first end, or outer end  146  and a second end, or inner end,  148 . Stub  140  mates with filler cap  142 . It may be, and in the example shown it is, that stub  140  and filler cap  142  are both threaded, and their threads mate together. Stub  140  may be either internally threaded or externally threaded. In the example shown stub  140  is externally threaded (i.e., is the male engagement interface), and filler cap  142  is internally threaded (i.e., is the female engagement interface). Filler cap  142  may also have, and as shown does have, a seal that is compressed as filler cap  142  is tightened. 
     When lid  24  lies on its back, the open end, i.e., outer end  146 , of stub  140  is uppermost. That end lies flush with, or as illustrated, shy of, the extremity of formed section  84  defined by back  88  of channel  86 . Termination of filler pipe  144  shy of the end of the formed section may tend to protect filler pipe  144  from inadvertent damage in use. The root end, i.e., inner end  148 , of stub  140  lies flush with the contour of flat region or flat portion  96 , however it may be, at the location of that junction. Thus the terminus of the inlet (i.e., in flat portion or flat region  96 ) lies at an intermediate level between the plane of the flange back  88  and the outside wall  62  of lid  24 . That is, it lies intermediate the upper and lower, or outside and inside boundaries of chamber  100  defined by walls  62  and  64 . A practical result of this arrangement is that when the ice inside the reservoir defined by chamber  100  of lid  24  begins to melt, if the lid is closed, the water will want to collect in the lowest point which is, initially, the inside of peripheral hat section  90 . Conversely, if lid  24  is lying on its back, the water may tend first to collect next to outside wall  62 . In addition, the presence of formations  110 ,  112  and the various dimples, such as dimples  122 , may tend to discourage, or delay, the tendency of loose pieces of ice to form, and to slosh about, inside lid  24 , but rather to encourage the ice to remain distributed in the lid for longer. In addition, the presence of formations  110  and  112  tends to resist deformation of lid  24  on freezing, such as may cause land  82  to retain its planar condition. 
     Filler port  130  need not be, and in the example illustrated is not, symmetrically located. Rather it is off-set from the centerline in both the x and y directions. As described above, the entry of filler port  130  into chamber  100  at inner end  148  is intermediate (a) the inner boundary of chamber  100  (and, in particular, that portion of the inner boundary defined by channel section  86 ) of inside wall  64 ; and (b) the outer boundary of chamber  100  defined by outside wall  62 . Similarly, in every direction in the x-y plane, inner end  148  is inset from peripheral sidewall  66 , and therefore it lies intermediate both the front-and-rear boundaries of chamber  100  and the left and right hand boundaries of chamber  100 . Thus, when chamber  100  is being filled, it may tend to be filled toward one corner. However, given that port  130  is on the inwardly facing side of lid  24 , given that it is not fully at the extremity of chamber  100 , and given that the flange defined by formed section  84  is hollow, in the usual course or filling from a tap of water, the user may tend not entirely to fill the full internal volume of chamber  100 . Rather a portion of that volume may continue to contain air. If lid  24  is placed in the freezer on its back, the air will collect in the hollow volume  138  inside formed section  84 . If lid  24  is place in the freezer right-side-up, then the air will collect against outside wall  62 . As the water freezes, it will expand and compress the air. Were there no air in lid  24 , the expansion on freezing of the water would tend to want to deform the shape of lid  24 , perhaps to an unwanted extent. Lid  24  may have, and in the embodiment illustrated does have a “Fill Line”  150 . In the embodiment illustrated fill line  150  is molded into lid  24 . Lid  24  may have, and in the example illustrated does have, a “Do Not Over Fill” instruction  152  (i.e., as part of the overall instruction: “Fill to this line. Do not over fill. Remplir a la ligne. Ne pas trop remplir. Llena hasta esta linea. No llena demasiado.”) also molded into lid  24  immediately adjacent to fill line  150 . In the example illustrated, fill line  150  is flush with the bottom edge of filler port  130  when lid  24  is held upright, or predominantly upright with its long axis (i.e., its nominal x-axis)  154  lying in a vertical plane. 
     The rim of container body  22  has at its ends on the vertical y-direction plane a pair of half spindles, or half stub-axles  156 . Lid  24  has a corresponding pair of half spindles or half stub-axles  158 . Container body  22  also includes a carrying handle  160 . Carrying handle  160  may be, and in the example illustrated is, a molded hard-plastic part that has a bail  162  having a pair of arms  164  and a spanning portion  166  by which handle  160  is lifted. The roots of bails  162  are pivotally mounted to half stub axles  156 . When handle  160  is rotated either to the lifting position or to lie forwardly of container body  22 , rotating root fittings  168  rotate forward to capture the upper lid axle halves  158 , and thereby defining a movable lock by which to secure lid  24  in its closed position relative to container body  22 . Lid  24  also has hand-holds or grips  170  molded into the central portion of its long sides to facilitate removal. 
       FIGS. 3 e , 3 f  and 3 g    are intended to illustrate that internal stiffening can be obtained, alternatively, with internal frames or gussets that inter-link the inside wall and the outside wall of the lid. In this example, lid  172  can be taken as being the same as lid  24 , or any other lid describes so far, except that rather than having outside wall  62  and inside wall  64 , lid  172  has outside wall  174  and inside wall  176 . Rather than being joined by a combination of inside formations  110 ,  112 , and dimples, such as may be, lid  172  may have internal frames or gussets  194 ,  196 ,  198  that extend between, and join the inside and outside walls. Once again, this has the effect of dividing the reservoir into zones, in this case four zones rather than three zones. Fluid can flow between the four zones through openings  202 ,  204  in gussets  194 ,  196 ,  198 . As may be noted, gussets  196  and  198  may be the same, and may be shorter in vertical height in the region of external formation  68  than is gussets  194 . Moreover, in a further alternate, a vertically truncated version of internal formation  110 ,  112  can be used with vertically shorter versions of gussets  194 ,  196 ,  198 , as may be, in place of the various dimples of the other examples. The use of smaller formations  110 ,  112  and gussets may tend somewhat to increase the volume of ice that may be contained in the reservoir. 
     The example of  FIGS. 3 h  and 3 i    is intended to illustrate that the baffles of gussets  194 ,  196 ,  198  could be replaced by baffle or gusset  234  in the case of gusset  194 , or gusset  236  in the case of baffle or gusset  196 ,  198 . The profile of gussets  194 ,  196  and  198  could be altered to fill the entire section of the lid around its entire periphery, including extensions to seat in the hollow of channel  86 . Were that the case, the gusset could have relieved or clipped corners  228  as seen in the case of gusset  234 , to facilitate draining of the reservoir. The reliefs defined by clipped corners  228  leave an opening to permit melt water to drain past gusset  234 . Similarly, or alternatively, gusset  196 ,  198  could have an additional relief  238  (or more than one) along the opposite side of gusset  236  as shown. Clearly, any of gussets  194 ,  196 ,  198  could have any combination of openings, clipped corners  228  or additional edge reliefs  238  as may be. 
     In the example of  FIGS. 2 a -2 h    lid  24  is separable from container body  22  so lid  24  can be placed in the freezer by itself. In the example of  FIGS. 4 a -4 b   , lid  200  for use with container body  22  is substantially the same as lid  24 . In some embodiments, it could be lid  24 . It differs from the depiction of lid  24  in  FIG. 1 c   , for example, in having an insulated cover  206 . Insulated cover  226  has a layer of thermal insulation  208 . Thermal insulation  208  may have an inner skin  210  and an outer skin  212 . Inner skin  210  may be a reflective skin having a shinny metallic surface. Outer skin  212  may be made of, or may include, a relatively heavy, scuff-resistant or wear resistant fabric, such as a woven nylon. Thermal insulation  208  can be mounted permanently to lid  200 , as, for example, with an adhesive. Alternatively, as shown, insulated cover  206  may be removable, i.e., separable, from lid  200 , such that it can be removed when lid  200  is placed in the freezer. To that end, the edges of lid  200  are provided with retention fittings, in the form of inset reliefs, or seats, or an accommodation  214 . These seats or accommodations  214  may run around the entire periphery of lid  200 , or may be formed only at the four corners, or in such a manner to yield a statically determinate set of catches by which the edge of cover  206  is captured and must be stretched to release. Cover  206  has corresponding engagement fittings or retainer fittings  216 . In this example, the retainer fitting or fittings may include, and as shown does include, an elasticized band  218  is sewn into a fabric or web skirt  222  of insulated cover  206 . When cover  206  is in place, the elasticized band seats in accommodation  214 . When cover  206  is to be removed, elasticized band  218  is stretched to disengage accommodation  214 . Cover  206  may be relieved along the short ends of lid  200  to permit passage of arms  164  of handle  160 . Insulated cover  206  may be a soft-sided insulated cover, and, rather than being rigid molded plastic, the insulation of insulated cover  206  may be a softer, compressible, “spongy” foam. The external layer may be a fabric covering. 
     The external surface of cover  206  may be smooth, without external formations, as shown in  FIG. 4 b   , in which the exterior surface is relatively flat and is unimpeded by ridges, bumps, depressions, and so on. By contrast, the cover may have internal engagement fittings, external formations, or both. In the example of  FIG. 4 a   , cover  220  has an optional internal formation, or formations  224 , which might be thought of, or take the form of, a pimple, or a nub, identified as item  226 , which is formed in the negative image of the cavity of dimple  192  of lid  180 . In an alternate form of internal formation, cover  220  could has a deepened section to occupy a drink pocket well, such as well  70 . Engagement of nub  224  in dimple  192  will discourage creeping of cover  220  relative to lid  180  in the x and y directions. Also in the example of  FIG. 4 a   , cover  220  has an external formation, or formations,  230 , which may be of any suitable shape in plan form view. In the example of  FIG. 4 a   , formations  230  identified as circular retainers  232 , which may define drink holders, as before. Formations  230  could be sunk into the foam of cover  226  to yield a well that is shy of the rest of the outside surface of cover  226 ; however, in the example shown they are shown as raised ridges that stand proud of the surrounding surface. 
     Just as lid  24  or  180  or  200  may have an insulated cap or cover, container body  22  may have an insulated wrapping, or insulated jacket. In the example of  FIG. 5 , container assembly  240  has a main body  242  and a lid  244 . Lid  244  has an insulated cap or cover  246 . Main body  242  has an insulated jacket  250 . Cover  246  and jacket  250  may be joined by a hinge  248 . As may be understood, lid  244  may be the same as, or substantially the same as, any of the lids described above. In each case, whatever style of type of lid it may be, it continues to have the mating interface that permits engagement with main body  242 , and opening and closing relative to chamber  40 . Similarly, body  242  can be of any style provided that it also retains the mating interface geometry for co-operation with the lid, whichever permutation or combination of the above described examples that may be. Cover  246  may be the same as, or substantially the same as, any of the above-described covers such as may be suitable for co-operation with lid  244 . 
     Jacket  250  has an upstanding peripheral wall  252  which may be considered as a sleeve. The sleeve has a smaller periphery at the bottom than at the top. Optionally, jacket  250  may also have a bottom panel, or base pan, or shoe,  254 . Peripheral wall  252  may be a soft-sided insulated wall having an inner layer or inner skin  256 , an outer layer or outer skin  258 , and insulation  260  between the inner and outer skins  256  and  258 . Peripheral wall  252  may be somewhat resilient, i.e., stretchy, to allow it to hug main body  242  in the manner of a sweater. Shoe  254  may also be of the same, soft-sided fabric construction with an inside skin  262 , an outside skin  264  and a layer of insulation  266 . However, since the weight of container assembly  240  rests on it, and since it may be in contact with the ground, or may be dragged across rough or uneven surfaces, shoe  254  may alternatively be made of a different construction. First outside skin  264  may be made of a thicker, more durable material than outside skin  258 , so that it acts as a scuff-resistant protective layer. This skin may be a fabric, and may be a woven high-molecular weight polymer such as a Nylon (t.m.). Alternatively, skin  258  may be a substantially rigid molded part that, again, is capable of functioning as a scuff pad. It may have an array of feet or skids  268 . 
     Jacket  250  has an upper retainer  270 . Upper retainer may engage with, and in the example of  FIG. 5  does engage with, an accommodation, or set of accommodations  272  formed in the uppermost rim of main body  242 . Accommodation  272  may have the form of a groove or rebate formed in that rim, whether around the entire periphery or around such portion of the periphery defines a statically determinate retaining footprint. For example, accommodation  272  may have the form of a set of four such groove located at the four corners of main body  242 . Retainer  270  may be resilient, e.g., elasticized, such as to set in, or grasp, accommodation  272  and to resist axial motion of peripheral wall in the downward direction. Conceptually, retainer  270  can be thought of as the waist-band that holds a pair of pants from falling down. Similarly, the bottom margin of the sleeve, i.e., the lower edge of peripheral wall  252 , may also have a retainer  274 , which engages an accommodation, or set of accommodations,  276  defined by the formed lower rib of main body  242 . Retainer  274  may likewise be resilient, or elasticized such that retainer  274  will grip accommodation  276 . Retainer  274  thus acts like a waist-band in reverse, to prevent the lower cuff of the sleeve from creeping up the outside wall of main body  242 . The sleeve may also additionally, or alternatively, have an upwardly running tracked fastener such as a zipper located in either the back or a side of the jacket to allow it to be zipper up at the back like a dress. Where jacket  250  includes a bottom pan, such as shoe  254 , shoe  254  may be attached to, and may share the resiliency of, retainer  274 , as shown in  FIG. 5 . 
     On installation, main body  242  is slid downward into jacket  250 , with retainers  270  and  274  being stretched as this occurs. Where a zipper is used, the zipper is open as this occurs, to allow jacket  250  to flex and stretch more easily. Where removal is desired, if there is a zipper, it is released. Upper retainer  270  is stretched to disengage accommodation  272 , and the upper edge is slid partially down the outside wall of main body  242 . This permits jacket  250  to be drawn downward and removed. 
     In the embodiment of  FIG. 5 , cover  246  and jacket  250  are joined by a hinge  248 . Hinge  248  is a flexible hinge. Hinge  248  may be, and as shown is, a flexible fabric hinge. Hinge  248  functions as a lanyard to keep lid  244  attached to main body  242 . However, when it is time to re-freeze lid  244 , it may be released from cover  246  and placed in a freezer as may be desired. Alternatively, in a different context, container assembly  240  may function as a thermal bottle for retaining heat, and hot or boiling water may be contained in lid  244  in the manner of a hot water bottle to aid in delaying the cooling of objects inside chamber  40 . 
     In summary, in each of the examples there is a cooler lid, be it  24 ,  180 ,  200  or  244 , as may be. The cooler lid has a hollow body  60 , or as may be, having an outside wall  62 , an inside wall  64 , and a peripheral wall  66  joining the outside wall  62  to the inside wall  64 . Outside wall  62 , inside wall  64 , and peripheral wall  66  define boundaries of an internal chamber  100  of lid  24  (or as may be). Internal chamber  100  has a filler port  130 . Filler port  130  is inset from the peripheral wall defined by formed section  84 , and, alternatively, by peripheral wall  66 . That is, filler port  30  is spaced from, or distant from, the peripheral wall in the front-to-back sense (y-direction). Filler port  130  is also distant from, or spaced from, the peripheral wall in the side-to-side sense (x-direction). It is in the midst of flat portion  132 , rather than being formed at the edge thereof. Filler port  130  has an entrance  148  to chamber  100  that is intermediate outside wall  62  and inside wall  64 . That is, as shown, outside wall  62  has a dominant location symbolised by plane P 62  in  FIGS. 3 a  and 3 d   . Inside wall  64  (or as may be) has a datum in the “flat portion” symbolised by the contour or surface identified by plane P 64  in  FIG. 3 d    of plane P 148  in  FIGS. 3 a  and 3 b   . Inside wall  64  also has a distant extremity in the sense of the z-direction symbolized by the lower boundary of hollow volume  138 , symbolised by the surface or contour identified as plane P 88  of back  88  of formed section  84 . As can be seen, whether inner end  148  lies in a plane or not, to the extent that the entrance to chamber  100  defined by inner end  148  lies flush with the contour of the surface of the “flat portion”  132 , it lies intermediate planes P 88  and P 62 . Accordingly, without regard to orientation of lid  24 , a first portion of the volume of chamber  100  lies at a level above the entrance of filler port  130  into chamber  100 , and a second portion of the volume of chamber  100  lies at a level below the entrance of filler port  100  into chamber  100 . Thus when chamber  100  is being filled, even if it is filled past the “fill to” line  150 , there will nonetheless remain a substantial amount of air in the unfilled volume. The locations of the first and second portions of that volume will change depending on the actual orientation of lid  24 , just as a bubble moves in the glass of a bubble level according to its orientation. 
     As described, lid  24  has a “fill-to” line  150  integrally formed therein, and it is visible from filler port  130  so that a person filling lid  24  has the “fill to” line in sight as filling occurs. Cooler lid  24  can be thought of as having a projected volumetric envelope—i.e., the 3-dimensional volume defined by the intersection set of the projections of container lid  24  as projected orthogonally in the x, y, and z-directions. Filler pipe  144  of filler port  130  is contained within said projected volumetric envelope. As such it may tend to be at least somewhat protected from inadvertent damage. As seen, filler pipe  144  is mounted to inside wall  64  of lid  24  (or  180 ,  200  or  244 , as may be), and, when said lid is placed upside-down, as when lying on its outer wall  62 , filler pipe  144  opens predominantly upward. Moreover, inside wall  64  of lid  24  (or  180  etc.) includes a peripheral formed section  84  that is hollow to define a cavity  138  therewithin, said cavity  138  being in fluid communication with chamber  100  more generally, inasmuch as cavity  138  forms a portion thereof. When lid  24  (etc.) is lying upside-down on outside wall  64  (etc), cavity  138  of peripheral formed section  84  is located predominantly upwardly of the entrance end  148  of filler port  130  into chamber  100 . As described, inside wall  64  has peripherally extending structural section  84 , which includes a hollow channel  86  that is in fluid communication with chamber  100 . Channel  86  has a back  88  and a pair of spaced apart legs  92 ,  94 . Inside wall  64  includes a spanning membrane  96  that extends front-to-rear and left-to-right. Channel  86  merges into spanning membrane  96  of inside wall  64 . Channel  86  stands away from outside wall  62 . When lid  24  is mounted on a mating container body  22 , the entrance of inner end  148  of filler port  130  into chamber  100  is higher than hollow channel  86  and lower than outside wall  62 . As described at least one of (a) outside wall  62 ; and (b) inside wall  64 , has at least a first out-of-plane formation formed therein. That is, inside wall  62  has out-of-plane formations  110 ,  112 ; and outside wall  64  has formations  68  or  194 , or both, as may be. Chamber  100  has first, second, and third portions  102 ,  104 , and  106 . Neck  126  is formed between portions  102  and  104 ; neck  128  is formed between portions  104  and  106 . Lid  24  (etc.) is rectangular in plan view. Inside wall  64  has at least one span-wise stiffener formed therein, namely the stiffeners defined by internal formations  110 ,  112  that run spanwise in the front-to-rear direction, although they could run side-to-side in the left-to-right spanwise direction. The spanwise stiffeners so defined are structurally connected to outer wall  64  and to outer peripherally extending formed section  84  thereof at either end. Chamber  100  is divided into first, second and third portions by spanwise extending internal formations  110 ,  112 . As noted above, those portions are linked by respective necks  126 ,  128 . In the embodiments of  FIGS. 4 a  and 4 b    cooler lid  24  has an insulated cover  206  that mates with said outside wall  64  (etc.) thereof. In this example, lid  24  (etc.) is removably separable from insulated cover  206 . 
     Looking at lid  24  from a different aspect, as before it has a hollow body having an outside wall, an inside wall, and a peripheral wall joining said outside wall to said inside wall. The inside wall has a land  82  for mating engagement with a corresponding land, namely upwardly facing shoulder  46  a cooler body  22 . The outside wall, inside wall, and peripheral wall define boundaries of internal chamber  100  of lid  24 . Internal chamber  100  has a filler port  130 . Inside wall  64  has a peripheral formation, namely formed section  84 . It has land  82  that, in use, engages mating container body  22 . Inside wall  62  has at least one stiffener extending one of (a) spanwise in a front-to-rear direction; and (b) spanwise in a left-to-right direction. As above, the stiffeners divide the internal chamber into first, second, and third portions. The first, second, and third portions are joined by respective necks. In that lid, the peripheral formation is hollow and has a cavity  138  formed therewithin. Cavity  138  is joined to, and forms part of internal chamber  100 . When lid  24  is sitting on cooler body  22 , peripheral formation  84  defines a channel  86  having a back  88  that extends downwardly; and the spanwise formations  110 ,  112  define channels each having a back  114  that extends upwardly. Each spanwise formation defines a spanwise extending channel having a back  114  and a pair of legs  116 . Legs  116  extend downwardly of back  114 . Peripheral formation  84  defines a peripheral channel  86  that has a back  88 , an inner leg  92  and an outer leg  94 . Inner leg  92  and outer leg  94  extend upwardly from back  88 . Inside wall  64  has a spanwise extending web  96  that has three portions  132 ,  134 ,  136 , each of which is bounded by a combination of at least one of spanwise formations  110 ,  112  and at least one portion  98  or  108  of peripheral formation  84 . Inner leg  92  merges with at least one spanwise extending web portion  132 ,  134 ,  136  of web  96  and extends downwardly therefrom. At least one of legs  116  of the channel defined by formation  110 ,  112  merges with a portion  132 ,  134  or  136  of spanwise extending web  96  and extends upwardly therefrom. 
     As described inside wall  64  of lid  24  has a first spanwise extending web, namely any one of portions  132 ,  134 ,  136  of flat portion  96 , and a second spanwise extending web, namely an adjacent other one of portions  132 ,  134  or  136  of flat portion  196 . One of spanwise extending formations  110 ,  112  is located between, and bounds an edge of each of the first and second spanwise extending webs, or web portions. Peripheral formation  86  bounds at least two other edges of the first spanwise extending web or web portion. Filler port  130  is mounted to the first spanwise extending web, or web portion. In some embodiments, formations  110 ,  112  are structurally interconnected to outside wall  62  at a location inwardly distant from peripheral formation  86 . As seen in  FIGS. 3 b  and 3 d   , this may be achieved in a number of ways. Outside wall  62  has at least a first out-of-contour formation  68  formed therein. It defines a drink pocket  70 . Spanwise extending formations  110 ,  112  of inside wall  64  (etc.,) have a locally extending portion, namely dimples  122 ,  184 ,  186 ,  190 ,  192  connecting it to drink pocket  70  of outside wall  62 . Cooler lid  24  has a removable insulated cover  206 . Outside wall  62  has a contour. Inside wall  64  has a contour. Spanwise extending formations  62 ,  64  extend upwardly out-of-contour relative to inside wall  64 . Peripheral formation  86  extends downwardly out-of-contour relative to inside wall  64 . Filler port  130  is mounted flush with the contour of inside wall  64 . 
     Both cooler body  22  and cooler lid  24  may be made of blow-molded plastic. Either or both of them could alternatively be made of other materials such as fiberglass or metal, although these materials might be formed using a lay up or casting process. Alternate fabrication methods may also be used. Those methods could include the use of a 3-D printing process or other molding process. 
     Various container body and lid combinations have been shown, or described, or both. The features of the various embodiments may be mixed and matched as may be appropriate without the need for further description of all possible variations, combinations, and permutations of those features. 
     The principles of the present invention are not limited to these specific examples which are given by way of illustration. It is possible to make other embodiments that employ the principles of the invention and that fall within its spirit and scope of the invention. Since changes in and or additions to the above-described embodiments may be made without departing from the nature, spirit or scope of the invention, the invention is not to be limited to those details, but only by the appended claims.