초록 ▼

A disposable cup lid is substantially circular, and has a downwardly facing cup rim engaging recess extending from 300.degree. to 360.degree. around the periphery. The recess is defined at its outer side by a downwardly depending apron, at its inner side by a downwardly directed recess sidewall, and

A disposable cup lid is substantially circular, and has a downwardly facing cup rim engaging recess extending from 300.degree. to 360.degree. around the periphery. The recess is defined at its outer side by a downwardly depending apron, at its inner side by a downwardly directed recess sidewall, and at its top by a top wall between the apron and the recess sidewall. The apron extends 360.degree. around the periphery. An arcuate portion of the top surface extends radially outwardly to the apron, and has a radially directed axis of symmetry. A depressed "U"-shaped hinge is formed in the arcuate portion, and is oriented so as to be perpendicular to the axis of symmetry. A fault line is stamped into the the arcuate portion, in a location opposed to the "U"-shaped hinge, and is spaced radially inwardly from the apron by a distance which is at least equal to the width of the top wall of the cup rim engaging recess. The fault line defines an outer extremity of a tear-back flap which, when torn back, will fold backwardly at the "U"-shaped hinge so as to define a drink-through opening. An upwardly extending lifting stub is formed in the arcuate portion of the top surface, and is such that it may be easily grasped between the thumb and a finger of an adult hand, so that it may be torn back by grasping and lifting the stub, and so as to provide access to the drink-through opening.

대표청구항 ▼

[ What is claimed is:] [1.] A disposable cup lid for placement onto a drinking cup having an opening at its upper end, said opening being defined by a substantially circular cup rim whose upper extremity lies substantially in a single plane;wherein said disposable cup lid is thermoformed from plasti

[ What is claimed is:] [1.] A disposable cup lid for placement onto a drinking cup having an opening at its upper end, said opening being defined by a substantially circular cup rim whose upper extremity lies substantially in a single plane;wherein said disposable cup lid is thermoformed from plastics sheet material, and comprises:substantially circular and substantially planar top surface; anddownwardly facing cup rim engaging recess formed near the outer periphery of said disposable cup lid;wherein said cup rim engaging recess extends from 300.degree. to 360.degree. around the periphery of said disposable cup lid, and is defined at its outer side by a substantially circular, downwardly depending apron, and at its inner side by a first downwardly directed recess sidewall;wherein said downwardly depending apron extends 360.degree. around the periphery of said disposable cup lid;wherein said cup rim engaging recess has a top wall which extends between said downwardly depending apron and said first downwardly directed recess sidewall;wherein there is an arcuate portion of said substantially planar top surface which extends radially outwardly to said downwardly depending apron;wherein said arcuate portion of said substantially planar top surface has a radially directed axis of symmetry;wherein a depressed "U"-shaped hinge is formed in said substantially planar top surface in the region thereof occupied by said arcuate portion, and said "U"-shaped hinge is oriented so as to be perpendicular to said axis of symmetry of said arcuate portion of said substantially planar top surface;wherein a first fault line is stamped into said substantially planar top surface in said arcuate portion thereof, in a location opposed to said "U"-shaped hinge;wherein said location of said first fault line is spaced radially inwardly from said downwardly directed apron by a distance which is at least equal to the width of said top wall of said cup rim engaging recess, and wherein said first fault line defines an outer extremity of a tear-back flap which, when torn back, will fold backwardly at said "U"-shaped hinge and will thereby define a drink-through opening in said substantially planar top surface;wherein an upwardly extending lifting stub is formed in said arcuate portion of said substantially planar top surface in a location thereof between said first fault line and said "U"-shaped hinge, and at a defined distance from said "U"-shaped hinge; andwherein the dimensions of said lifting stub are such that the lifting stub may be easily grasped between the thumb and a finger of an adult hand;whereby said tear-back flap may be torn back by a grasping and lifting action of said lifting stub so as to be folded backwardly about said "U"-shaped hinge, and so as to thereby provide access to said drink-through opening.