Whistle cap for drink container

Abstract

A whistle for a water or drink bottle may be either combination whistle and drink bottle closure or a whistle with an annular body portion that fits over the neck of the bottle without interefering with the existing cap or closure. The whistle includes a stem that projects from an upper part of the cap portion. One or more internal windways extend around the neck of the bottle, and lead from the stem to one or more fipple holes to generate sound from air flow exiting the windway. Each fipple hole has its own respective chamber that determines pitch of the sound. A gap in one side of an annular body allows the whistle to snap fit onto the bottle neck.

1 . A combination whistle and drink bottle closure, comprising a cap portion fitting a mouth of a drink bottle, and an incorporated whistle, the whistle including a stem that projects from an upper part of the cap portion, first and second internal windways within the cap portion each leading from the stem to a respective fipple to generate sound from air flow exiting the windway, and each having a respective chamber that determines pitch of the sound.  
   
   
       2 . The combination of  claim 1 , wherein a drink nipple is provided axially at the center of the cap portion, and said windways bend around respective sides of the drink nipple, so that the whistle and the drink nipple do not interfere with each other's operation.  
   
   
       3 . The combination of  claim 1 , wherein said stem projects upward from the cap portion at a fixed angle.  
   
   
       4 . The combination of  claim 1 , in which the first and second fipples have openings that are directed in a distal direction to direct the sound in the distal direction.  
   
   
       5 . A whistle adapted to be mounted over a closure of a drink bottle without interfering with the user's drinking from the bottle, in which the cap fits onto a mouth of a drink bottle that is positioned atop a neck portion above a body portion of the bottle; and wherein the whistle comprises a hollow annular portion having an open center dimensioned to fit onto the neck of said bottle; a stem that projects proximally from a proximal side of said annular portion; at least one internal windway within the annular portion and leading from the stem; at least one fipple located at a distal side of said annular portion to generate sound from air flow exiting the windway; and a chamber portion situated at said fipple for determining pitch of the sound.  
   
   
       6 . The whistle according to  claim 5 , in which there are a plurality of fipples situated at the distal side of said annular portion, for generating multiple tones.  
   
   
       7 . The whistle according to  claim 5 , in which said chamber portion includes a hollow finger portion that angles distally and downward from said annular portion.  
   
   
       8 . The whistle according to  claim 7 , in which said hollow finger portion extends distally outward from the annular portion to a distance less than the radius of the body of said bottle.  
   
   
       9 . The whistle according to  claim 5 , wherein said stem, said annular portion, and said chamber portion are unitarily formed of a semi-rigid plastic material.  
   
   
       10 . The whistle according to  claim 5 , wherein said annular portion has a gap formed therein at one side to permit installing the whistle onto a neck of a beverage container from the side and including spring means for snap fitting the whistle onto said neck.  
   
   
       11 . A whistle adapted to be mounted over a closure of a drink bottle without interfering with the user's drinking from the bottle, in which the snap cap fits onto a neck of a drink bottle above a body portion of the bottle; and wherein the whistle comprises a hollow generally annular portion having an open center dimensioned to fit onto the neck of said bottle and a gap at one side; a stem that projects proximally from a proximal side of said annular portion; at least one internal windway within the annular portion and leading from the stem; at least one fipple member located at a distal side of said annular portion to generate sound from air flow exiting the windway; and a chamber portion situated at said fipple for determining pitch of the sound.  
   
   
       12 . The whistle according to  claim 11 , in which there are a plurality of fipple members situated at the distal side of said annular portion, for generating multiple tones.  
   
   
       13 . The whistle according to  claim 11 , wherein said gap is slightly smaller than the diameter of said neck.