Base for top-down storage vessel

Abstract

Top-down storage vessels can be stably supported on a base portion opposite a top portion defining an opening. Top-down storage vessels can be stably supported on a closure coupled with the top portion.

1 . A blow molded container, comprising a base portion, 
 wherein the base portion includes corrugation comprising a plurality of raised parallel ribs and at least one parallel trough extending substantially across the base portion.    
   
   
       2 . The blow molded container of  claim 1 , further comprising: 
 a top portion defining an opening; and    a body portion adjacent the top portion and defined by a tubular sidewall,    wherein, the base portion is adjacent the body portion.    
   
   
       3 . The blow molded container of  claim 2 , wherein the body portion has an oval cross section.  
   
   
       4 . The blow molded container of  claim 2 , wherein the corrugation comprises five raised ribs and four troughs.  
   
   
       5 . The blow molded container of  claim 2 , wherein the top portion, the body portion, and the base portion are adapted for hot fill applications.  
   
   
       6 . The blow molded container of  claim 2 , wherein the body portion has an oval cross section with a major axis and a minor axis, and the plurality of raised ribs and the at least one trough are parallel to the minor axis.  
   
   
       7 . The blow molded container of  claim 2 , wherein at least one raised parallel rib is concave.  
   
   
       8 . The blow molded container of  claim 4 , 
 wherein the five raised ribs comprise a first outer rib, a first inner rib adjacent to the first outer rib, a central rib adjacent to the first inner rib, a second inner rib adjacent to the central rib, and a second outer rib adjacent to the second inner rib and    wherein the first and second inner ribs are taller than the first and second outer ribs.    
   
   
       9 . The blow molded container of  claim 8 , wherein the first and second inner ribs have a concave shape and form four standing points for the container.  
   
   
       10 . The blow molded container of  claim 2 , comprising a polyolefin.  
   
   
       11 . The container of  claim 1 , wherein the raised parallel ribs support the container upright on a surface.  
   
   
       12 . The container of  claim 1 , wherein the raised parallel ribs comprise outermost raised parallel ribs that form standing points for the container.  
   
   
       13 . A container system, comprising: 
 a blow molded container comprising 
 a top portion defining an opening,  
 a body portion adjacent the top portion and defined by a tubular sidewall, and  
 a base portion adjacent the body portion, wherein the base portion includes corrugation; and  
   a closure adapted to be coupled with the top portion of the blow molded container.    
   
   
       14 . The container system of  claim 13 , wherein the closure is adapted to support the container in an upright position on a surface.  
   
   
       15 . The container system of  claim 13 , wherein the base portion is adapted to support the container in an upright position on a filling line.  
   
   
       16 . A method comprising blow molding a container that comprises 
 a top portion defining an opening,    a body portion adjacent the top portion and defined by a tubular sidewall, and    a base portion adjacent the body portion, wherein the base portion includes corrugation comprising a plurality of raised parallel ribs and at least one parallel trough extending substantially across the base portion.    
   
   
       17 . The method of  claim 16 , wherein blow molding comprises extrusion blow molding.  
   
   
       18 . The method of  claim 16 , further comprising filling the container with the container standing in an upright position on the corrugation.  
   
   
       19 . The method of  claim 18 , wherein the raised parallel ribs are concave and the container stands on the farthest portions of at least two of the raised parallel ribs.  
   
   
       20 . The method of  claim 18 , further comprising sealing the container with a closure.