Receptacle

Abstract

It comprises a substantially elastic lid ( 2 ) of silicone and a substantially rigid base ( 3 ), and includes hermetic sealing means between the lid ( 2 ) and the base ( 3 ), characterized in that said hermetic sealing means include two sealing devices, an inner device with regard to the base ( 3 ), which performs the sealing when the lid ( 2 ) expands due to the heating of the receptacle and an outer device with regard to the base ( 3 ) which performs the sealing when the lid ( 2 ) shrinks due to the cooling of the receptacle. In this way, the hermeticity between the lid ( 2 ) and the base ( 3 ) inside a conventional or microwave oven and freezer or refrigerator is achieved.

1 . Receptacle which comprises a substantially elastic lid of silicone and a substantially rigid base ( 3 ), and includes hermetic sealing means between the lid ( 2 ) and the base, characterized in that said hermetic sealing means include two sealing devices, an inner device with regard to the base, which performs the sealing when the lid expands due to the heating of the receptacle and an outer device with regard to the base which performs the sealing when the lid shrinks due to the cooling of the receptacle, whereby the expansion and shrinkage coefficient of the base is inferior than that of the lid.  
     
     
         2 . Receptacle as claimed in  claim 1 , characterized in that the inner hermetic sealing device comprises a flange which projects inwardly from the lid, said flange pressing against the inner side of the side wall of the base when the receptacle is heated.  
     
     
         3 . Receptacle as claimed in  claim 2 , characterized in that the flange comprises three portions, a first portion, slightly outwardly angled, a second portion more outwardly angled than the first portion and a third portion, inwardly angled, the base having an upper thicker section and an angled binding surface between the upper section and the rest of the base, the first portion of the flange being adapted to the upper section of the base and the second portion of the flange being adapted to the angled surface, the third portion functioning lever-like over the rest of the flange when the lid expands.  
     
     
         4 . Receptacle as claimed in  claim 1 , characterized in that the outer hermetic sealing device comprises a flange which projects inwardly from the lid, said flange pressing against the outer side of the side wall of the base when the receptacle is cooled.  
     
     
         5 . Receptacle as claimed in  claim 4 , characterized in that the flange comprises two portions, a substantially straight first portion and an outwardly angled second portion.  
     
     
         6 . Receptacle as claimed in  claim 2 , characterized in that said flange projects outwardly at one of its ends to form a lip which presses against the inner face of the side wall of the base due to the heating of the receptacle.  
     
     
         7 . Receptacle as claimed in  claim 6 , characterized in that the outer hermetic sealing device comprises a flange constituted by a downwardly angled portion which presses against the outer face of the side wall of the base due to the cooling of the receptacle.