Plastics bottle construction

Abstract

A plastics bottle comprising two parts each being stackable in its own right and each part in practice being sealable to the other to provide a unitary bottle for the containment of a liquid or flowable product.

1 . A plastics bottle for the containment of a liquid or other flowable product, the bottle comprising a relatively top part and a separate relatively bottom part adapted in use for sealing engagement one with the other to provide a unitary bottle following or prior filling with the contents, and an entry into one of the parts of the bottle for the filling thereof, each part being so formed as to be stackable within or on one another of the same part prior to filling. 
   
   
       2 . A plastics bottle according to  claim 1  wherein the bottom part is of tapered hollow cylindrical construction with an open mouth of a preselected diametral extent and the top part is of a generally hollow funnel shape defining a neck portion and a flared portion, the neck portion being provided with an opening for selectively emptying the bottle of its content. 
   
   
       3 . A plastics bottle according to  claim 2  wherein the neck portion is provided with an external thread defining the opening and being for the reception of a cap, and the flared portion presenting a sealing rim for engagement with the mouth of the bottom part. 
   
   
       4 . A plastics bottle according to  claim 1  wherein the bottom part is formed like a disc and the top part comprises an open ended tapered hollow cylindrical section leading to a flared portion with a neck portion being provided with an opening for selectively emptying the bottle of its content. 
   
   
       5 . A plastics bottle according to  claim 4  wherein the neck portion is provided with an external thread defining the opening and being for the reception of a cap, the open end of the cylindrical section presenting a sealing rim for engagement with the disc of the bottom part. 
   
   
       6 . A plastics bottle according to  claim 1  wherein the sealing of the top and bottom parts is effected thermally. 
   
   
       7 . A plastics bottle according to  claim 1  wherein the sealing of the top and bottom parts is effected mechanically with one of the parts being pinched one to the other. 
   
   
       8 . A plastics bottle according to  claim 1  wherein the sealing of the top and bottom parts is effected mechanically with the top and bottom parts being screwably engageable with each other. 
   
   
       9 . A plastics bottle according to  claim 1  wherein the sealing of the top and bottom parts is effected mechanically with the top and bottom parts being snappingly engageable with each other. 
   
   
       10 . A plastics bottle according to  claim 1  wherein the top and bottom parts are locally secured to one another and form a single molded piece.