Bottle cap

Abstract

A bottle cap includes a cap seat and a cap. The cap seat has a receiving space confined by an inner tubular wall and a bottom wall. The cap is disposed within the inner tubular wall, and has a top panel and a tubular cutter body. The tubular cutter body has a beveled bottom open end that has a cutting end and a pushing end. When the top panel is pressed, the cutting end cuts the bottom wall, and the pushing end pushes a portion of the bottom wall so that the bottom wall moves away from the cutting end. Preferably, the bottom wall and the inner tubular wall are formed as one piece.

1 . A bottle cap comprising:
 a cap seat having an inner tubular wall, a bottom wall closing a bottom end of said inner tubular wall and having a peripheral connection portion that is connected to said bottom end of said inner tubular wall, and a receiving space confined by said inner tubular wall and said bottom wall; and   a cap disposed within said inner tubular wall, and having a top panel proximate to a top end of said inner tubular wall and closing said receiving space, and a tubular cutter body extending downwardly from a peripheral end of said top panel toward said bottom wall, said tubular cutter body having a beveled bottom open end slanting downwardly from a higher part to a lower part, said bottom open end having a cutting end formed at said lower part, a pushing end formed at said higher part and diametrically opposite to said cutting end, and two opposite valleys formed at said higher part and between said cutting end and said pushing end, said bottom open end slanting upwardly from said cutting end to said valleys and extending downwardly from said valleys to said pushing end, said cap being movable downwardly from a non-cutting position to a cutting position when said top panel is pressed, said pushing end pushing a part of said connection portion of said bottom wall when said cap is in the cutting position.   
     
     
         2 . The bottle cap as claimed in  claim 1 , wherein said bottom wall and said inner tubular wall are molded as one piece. 
     
     
         3 . The bottle cap as claimed in  claim 1 , wherein a height of said pushing end from a bottommost end of said cutting end is substantially equal to a distance between the non-cutting position and the cutting position. 
     
     
         4 . The bottle cap as claimed in  claim 3 , wherein said inner tubular wall has an upper tubular portion that is proximate to said top end thereof, that receives said top panel, and that has an inner surface formed with upper and lower annular grooves, said cap having an annular protrusion that engages said upper annular groove when said cap is at the non-cutting position and that engages said lower annular groove when said cap is at the cutting position, said height of said pushing end from said bottommost end of said cutting end being substantially equal to a distance between said upper and lower annular grooves. 
     
     
         5 . The bottle cap as claimed in  claim 1 , wherein said bottom wall is thick at a center thereof and is thinned gradually from said center to a peripheral end thereof, which is adjacent to said bottom end of said inner tubular wall. 
     
     
         6 . The bottle cap as claimed in  claim 4 , further comprising a tearable lid disposed removably around said upper tubular portion and covering said top panel. 
     
     
         7 . The bottle cap as claimed in  claim 6 , wherein said upper tubular portion further has an outer surface formed with an outer annular groove, said tearable lid having a sealing ring extending around said upper tubular portion, a puller fixed to said sealing ring, a lid plate disposed above said top panel, and a plurality of spaced apart tearable connectors interconnecting said lid plate and said sealing ring, said sealing ring having an inner surface formed with an annular ridge engaging said outer annular groove. 
     
     
         8 . A bottle cap comprising:
 a cap seat having an inner tubular wall, a bottom wall closing and connected to a bottom end of said inner tubular wall, and a receiving space confined by said inner tubular wall and said bottom wall, said inner tubular wall and said bottom wall being formed as one piece; and   a cap disposed within said inner tubular wall, and having a top panel proximate to a top end of said inner tubular wall and closing said receiving space, and a tubular cutter body extending downwardly from a peripheral end of said top panel toward said bottom wall, said tubular cutter body having a beveled bottom open end slanting downwardly from a higher part to a lower part, said bottom open end having a cutting end formed at said lower part.   
     
     
         9 . The bottle cap as claimed in  claim 8 , wherein said bottom wall is thick at a center thereof and is thinned gradually from said center to a peripheral end thereof, which is connected to said bottom end of said inner tubular wall. 
     
     
         10 . A bottle cap comprising:
 a cap seat having an inner tubular wall, a bottom wall closing and connected to a bottom end of said inner tubular wall, a receiving space confined by said inner tubular wall and said bottom wall, and an outer tubular wall, said inner tubular wall and said bottom wall being formed as one piece, said inner tubular wall having an upper tubular portion that is proximate to a top end of said inner tubular wall, and that has an inner surface formed with upper and lower annular grooves, and an outer surface formed with an outer annular groove, said outer tubular wall surrounding and being spaced apart from said inner tubular wall, and having an inwardly bending top end connected to said inner tubular wall below said upper tubular portion;   a cap disposed movably within said inner tubular wall, and having a top panel received in said upper tubular portion and closing said receiving space, and a tubular cutter body extending downwardly from a peripheral end of said top panel toward said bottom wall, said tubular cutter body having a beveled bottom open end slanting downwardly from a higher part to a lower part, said bottom open end having a cutting end formed at said lower part, said top panel engaging one of said upper and lower annular grooves; and   a tearable lid having a sealing ring extending around said upper tubular portion above said inwardly bending top end of said outer tubular wall, a puller fixed to said sealing ring, a lid plate disposed above said top panel, and a plurality of spaced apart tearable connectors interconnecting said lid plate and said sealing ring, said sealing ring having an inner surface engaging said outer annular groove.