Container and lid

Abstract

A lid for a container includes a central portion; a channel at a periphery of the central portion configured to form a substantially liquid-tight gasketless seal with the container, the channel including an inner skirt for contacting an inner surface of the container and an outer skirt; and a protrusion protruding from the inner skirt and being configured to form an interference fit with the inner surface of the container.

1 . A lid for a container, comprising:
 a central portion for covering an opening of the container;   a channel at a periphery of the central portion configured to form a substantially liquid-tight gasketless seal with the container, the channel including an inner skirt for contacting an inner surface of the container, an outer skirt for extending around an outside surface of the container and a wall connecting the inner skirt and the outer skirt; and   an angled protrusion protruding from the inner skirt and being configured to form an interference fit with the inner surface of the container, wherein a substantial surface portion of an underside of the wall is configured to abut the container to form the substantially liquid-tight gasketless seal.   
     
     
         2 . The lid of  claim 1 , further comprising a tearline for separating an upper portion of the outer skirt and a lower tearstrip portion. 
     
     
         3 . The lid of  claim 2 , further comprising a protruding ridge on the upper portion of the outer skirt. 
     
     
         4 . The lid of  claim 3 , wherein the protruding ridge includes a plurality of ribs. 
     
     
         5 . The lid of  claim 3 , further comprising a protruding ridge on the lower tearstrip portion of the outer skirt. 
     
     
         6 . The lid of  claim 1 , wherein the inner skirt angled protrusion of the inner skirt extends around the central portion and forms a complete loop such that a starting and ending point of the loop are the same. 
     
     
         7 . The lid of  claim 1 , wherein the inner skirt angled protrusion of the inner skirt extends around the central portion and forms an incomplete loop such that a starting and ending point of the loop are different. 
     
     
         8 . The lid of  claim 7 , wherein the inner skirt angled protrusion of the inner skirt extends around the central portion is a helical shape. 
     
     
         9 . A lid for a container, comprising:
 a central portion;   an u-shaped channel extending at least partially around the central portion, the u-shaped channel having first and second generally vertical sidewalls;   an outer skirt separated from the second sidewall via a wall at a periphery of the u-shaped channel; and   a protruding ridge on an inner surface of the outer skirt, wherein the protruding ridge includes a plurality of ribs, wherein a substantial surface portion of an underside of the wall is configured to abut the container to form a substantially liquid-tight gasketless seal.   
     
     
         10 . The lid of  claim 9 , wherein the plurality of ribs are substantially parallel to each other. 
     
     
         11 . The lid of  claim 9 , wherein each rib includes a lower surface that tapers towards the inner surface of the outer skirt. 
     
     
         12 . The lid of  claim 9 , wherein a thickness of an upper portion of each rib is greater than a thickness of a lower portion of each rib. 
     
     
         13 . A container and lid,
 wherein the container comprises:   a base;   a sidewall extending upwardly from the base to an upper rim, wherein the sidewall surrounds an inner cavity, and wherein the sidewall tapers away from the inner cavity while extending upwardly from the base;   a satellite ring extending outwardly from the container sidewall; and   a bead protruding outwardly from the container sidewall;   wherein the lid comprises:   a central body portion;   a channel around a periphery of the central body portion configured to form a substantially liquid-tight gasketless seal with the upper rim of the container, the channel including an outer skirt and an inner skirt, wherein the inner skirt is configured to contact an inner surface of the container sidewall, the inner skirt including an angled inner skirt protrusion protruding outwardly from the inner skirt and extending around the central body portion, wherein the angled inner skirt protrusion is configured to form an interference fit with the inner surface of the sidewall, wherein the channel includes a wall connecting the inner skirt and the outer skirt;   a tearline for separating an upper portion of the outer skirt and a lower tearstrip portion, wherein a lower edge of the lower tearstrip portion is configured to lie adjacent the satellite ring of the container; and   a first protruding ridge on the upper portion of the outer skirt and a second protruding ridge on the lower tearstrip portion, wherein the first and second protruding ridges are configured to lie below the container bead, wherein a substantial surface portion of an underside of the wall abuts the upper rim to form the substantially liquid-tight gasketless seal.   
     
     
         14 . The lid of  claim 1 , wherein the angled protrusion of the inner skirt includes a first surface extending upwardly and toward the central portion and a second surface below the first surface extending downwardly and toward the central portion. 
     
     
         15 . The lid of  claim 14 , wherein the first and second surfaces have an angle with respect to one another of between approximately 60 degrees and 170 degrees. 
     
     
         16 . The lid of  claim 14 , wherein the first and second surfaces have an angle with respect to one another of between approximately 90 degrees and 160 degrees. 
     
     
         17 . The lid of  claim 13 , wherein the angled protrusion of the inner skirt includes a first surface extending upwardly and toward the central portion and a second surface below the first surface extending downwardly and toward the central portion. 
     
     
         18 . The lid of  claim 17 , wherein the first and second surfaces have an angle with respect to one another of between approximately 60 degrees and 170 degrees. 
     
     
         19 . The lid of  claim 17 , wherein the first and second surfaces have an angle with respect to one another of between approximately 90 degrees and 160 degrees.