Referring now more specifically to the drawings, the hot cup lid 10 of the invention is illustrated, in
The height of the top 16 above the peripheral rim 18 varies from a maximum height with a side wall 28 extending between the top 16 and the inner rim skirt 26 therebelow to a generally diametrically opposed position wherein the top 16 engages directly with the inner rim skirt 26 substantially below the cavity 20 defined thereby. Basically, the top 16 is of a constant height for a substantial portion of the lid 10 and, at a break point indicated by 30, slopes, as indicated at 32, progressively downward, to the rim, with a corresponding progressive decrease in the height of the lid side wall 28. Note in particular the left side of the cross-sectional details of
The lid 10 includes a central recess 34, the depth of which below the top 16 is such whereby the bottom 38 of the recess 34 is positioned substantially above the peripheral rim 18. The recess 34 is of a size and so configured as to define or retain a peripheral ridge 40 about a major portion of the lid, including the full height portion thereof and an extent of the downwardly sloping area 32, note in particular
A flap-accommodating channel 44 extends radially outward from the relatively higher recess bottom 38 centrally through the sloping portion of the top 16 to the cup rim 18.
A tear flap 46 extends centrally along the channel 44 and is defined by laterally spaced parallel tear or break lines 48 in and along the bottom of the channel 44 and through the aligned section or portion 50 of the lid rim 18. The inner end of the flap 46 is pivotally joined to the bottom 38 of the recess by an appropriate living hinge 52. The flap also includes an integral tab 54 on and projecting outward from the outer skirt portion of the rim portion 50 of the flap with this tab 54, having an upwardly projecting sealing lug 56 thereon.
The flap 46, when one desired to drink from the cup 12, is grasped by the tab 56 and upwardly and rearwardly pivoted, causing a parting of the tear or break lines 48 as well as a disengagement of the rim portion 50 integral therewith. The drinking opening thus formed is of a substantial size and, by a removal of the rim portion 50 with the flap, exposes the cup lip 14 for direct access thereto by the drinker, much in the manner of drinking from an open top cup. This substantially free access to the contents of the cup will also be facilitated by the inclined nature of the portion 32 of the top, which allows for an accommodation of the upper lip of the drinker. As desired, the bottom of the channel 44 can be strengthened or stabilized immediately outward of the tear lines 48 by a pair of downwardly directed ribs 60 formed therein and paralleling the tear lines 48 for a major portion of the length thereof.
The top 16, and more particularly the flat top ridge portion thereof formed by the recess 34, at a point diametrically opposed from the flap and opening 48 formed thereby, includes a sipping opening 62 therethrough. This sipping opening 62 is, as opposed to the drinking opening 58, of a size so as to allow for a controlled sipping of the hot contents of the cup therethrough until such time as the contents have sufficiently cooled so as to allow for a conventional drinking thereof through the drinking opening 58. It will be noted that this sipping opening 62 is provided immediately adjacent the outer periphery of the lid for convenient and safe access thereto and to the hot liquid to issue therefrom in a controlled manner. Further, the ridge 40 within which the sipping opening 62 is defined, allows for a convenient positioning of the mouth of the drinker when accessing the sipping opening. The elevated positioning of the sipping opening 62 at the uppermost position of the lid, will also provide for at least a small cooling effect as the hot liquid flows through the lid to the sipping opening.
Referring to
Inasmuch as the flap 46 incorporates a section or portion 50 of the locking rim 18, the flap can be reclosed for a substantially resealing of the drinking opening. It should also be appreciated that the hot cup lid of the invention can be formed of any appropriate thermoplastic or like material standard in the formation of cup lids and which will allow for the provision of tear or break lines, a living hinge, and a snap mounting of the lid rim and flap rim portion to a conventional hot cup.
As described, the lid is unique in its multi-functional capacity, providing, at the option of the drinker, a sipping of the contents of the cup through a small sipping opening upwardly removed from the fill level of the cup, and, upon a sufficient cooling of the cup contents to the drinker's preference, a direct drinking through an enlarged drinking opening provided in the lid which exposes the cup lip itself and provides direct access to the contents thereof as one would have in an open mouth cup. This is achieved while at the same time retaining a partial enclosure of the cup to maintain the warmth thereof and avoid accidental spillage.
The foregoing is considered illustrative of the principles of the invention. As modifications and variations may occur to those skilled in the art, it is not desired to limit the invention to the exact construction and manner of use as shown and described. Rather, all suitable modifications and equivalents may be resorted to as falling within the scope of the invention as claimed.