Container with a lid

Abstract

The present invention relates to a container with a lid and more particularly to improvements in providing a durable leak-resistance sealing means between the container and lid.

1 . A container with a lid: the container body having an open top with a rim thereon and at least one annular flange spaced apart and extending radially outwards from an external wall of the container body, and the lid comprising a central disc-shaped portion and an inverted U shaped peripheral channel for receiving the rim of the container, said peripheral channel being defined by an inner leg connected to the central disc-shaped portion, a bottom wall and an outer leg including at least one annular rib formed therein, said annular rib of the lid being snap-fastenable over the annular flange of the container body, the container further comprising a resilient sealing member, which extends around the entire peripheral channel of the lid, wherein
 the rim is configured such that there is no significant gap between the rim and the bottom wall of the peripheral channel when the rib of the outer leg of the said peripheral channel is tightly engaged upon the annular flange of the container, providing to the resilient member a constant compression irrespective of any subsequent load applied to the lid, particularly to the central disc-shaped portion of the lid.   
     
     
         2 . A container with a lid according to  claim 1 , characterized in that the container body has a plurality of annular flanges spaced apart and extending radially outwards from an external wall of the container body, and in that the outer leg of the lid includes a plurality of annular ribs formed therein in a relationship corresponding to the spaced apart relationship of the annular flanges of the container body, the annular ribs of the lid being snap-fastenable over the corresponding said annular flanges of the container body, the rim being configured such that there is no significant gap between the rim and the bottom wall of the peripheral channel when the uppermost rib of the outer leg is tightly engaged upon its corresponding annular flange of the container. 
     
     
         3 . A container with a lid according to  claim 1 , characterized in that on the underside of the bottom wall of the peripheral channel there is provided an annular downwardly oriented rib that configures together with the inner leg of the peripheral channel a reception groove for the rim, said reception groove being dimensioned such that the rim fits tightly onto the reception groove. 
     
     
         4 . A container and a lid according to  claim 3 , characterized in that the upper face of the uppermost annular flange of the container exhibits an annular projection adapted to compress the sealing member that is enclosed within the space delimited by the annular downwardly oriented rib, the bottom wall and the outer leg of the peripheral channel of the lid. 
     
     
         5 . A container and a lid according to  claim 3 , characterized in that the distal end of the annular projection forms an acute angle.