Bottle cap having a latch ring portion that is formed with reinforcing ribs

Abstract

A bottle cap includes a cover body adapted to be sleeved on a neck of a bottle, a latch ring portion having a lower peripheral margin with a plurality of integral retaining fins extending upwardly and inwardly therefrom, and a plurality of frangible tabs for interconnecting integrally the cover body and the latch ring portion. The retaining fins have upper ends adapted to be disposed under the flange of the bottle so as to prevent removal of the cap from the neck of the bottle. Each retaining fin has a pair of inclined inner and outer side surfaces, one of which is formed with a plurality of integral reinforcing ribs that are spaced apart from one another along the circumferential direction of the latch ring portion.

We claim:  
     
         1 . A bottle cap adapted to cover an upper end opening in a neck of a bottle, the neck having an outer surface that is formed with an integral annular flange, said bottle cap comprising: 
 a cover body adapted to be sleeved on the neck of the bottle and adapted to cover the opening in the bottle;    a latch ring portion connected to and disposed under said cover body, said latch ring portion having a lower peripheral margin that is formed integrally with a plurality of molded retaining fins, which extend upwardly and inwardly therefrom and which are arranged along a circumferential direction of said latch ring portion, said retaining fins having upper ends that are adapted to be disposed under and that are adapted to be disposed adjacent to the flange of the bottle so as to prevent removal of said cap from the neck of the bottle, each of said retaining fins having a pair of inclined inner and outer side surfaces, one of which is formed with a plurality of integral reinforcing ribs that are spaced apart from one another along the circumferential direction of said latch ring portion; and    a plurality of frangible tabs for interconnecting integrally said cover body and said latch ring portion.    
     
     
         2 . The bottle cap of  claim 1 , wherein each of said reinforcing ribs is wedge-shaped.  
     
     
         3 . The bottle cap of  claim 1 , wherein each adjacent pair of said retaining fins are spaced apart from each other.  
     
     
         4 . The bottle cap of  claim 1 , further comprising a plurality of connecting strips, each adjacent pair of said retaining fins being formed respectively and integrally with two opposite sides of a respective one of said connecting strips.