Plastic Container With Strapped Base

Abstract

A container may have a base, a sidewall connected to the base, a bell connected to the sidewall, and a finish connected to the bell. The base may have strap ribs to resist deformation of the base. The sidewall may have recessed columns to resist bending, leaning, crumbling, and/or stretching. The strap ribs and recessed columns may vertically line up along a central axis of the container to communicate forces on the container vertically along the container to continuously resist deformation in the base and the sidewall.

1 - 19 . (canceled) 
     
     
         20 . A plastic container comprising:
 a base including
 a plurality of strap ribs extending from a central portion of the base to a base perimeter about a longitudinal axis, and 
 a plurality of feet formed between the strap ribs and presenting a resting surface of the plastic container; and 
   a sidewall comprising a grip portion extending from the base to a label panel, the sidewall having a plurality of circumferentially positioned ribs, wherein each rib of the plurality of circumferentially positioned ribs includes a first depth portion that transitions in the circumferential direction to a second depth portion of lesser depth, and wherein at least three second depth portions are aligned in a direction parallel to the longitudinal axis,   wherein each first depth portion has a depth relative to the sidewall of at least 1.2 mm.   
     
     
         21 . The plastic container of  claim 20 , wherein the base further comprises a gate centered on the longitudinal axis and a wall extending from the gate toward the resting surface. 
     
     
         22 . The plastic container of  claim 21 , wherein the wall comprises a dome surrounding the gate which slopes more steeply toward the resting surface than a portion of the wall surrounding the dome. 
     
     
         23 . The plastic container of  claim 20 , wherein the largest diameter of the base is greater by at least 1 mm than any other parallel diameter of the container. 
     
     
         24 . The plastic container of  claim 20 , wherein each first depth portion has a depth relative to the sidewall of at least 1.5 mm. 
     
     
         25 . The plastic container of  claim 20 , wherein each first depth portion has a depth relative to the sidewall of at least 1.7 mm. 
     
     
         26 . The plastic container of  claim 20 , wherein each first depth portion has a depth relative to the sidewall of at least 2.0 mm. 
     
     
         27 . The plastic container of  claim 26 , wherein each second depth portion has a depth relative to the sidewall of at least 1.3 mm. 
     
     
         28 . The plastic container of  claim 26 , wherein each second depth portion has a depth relative to the sidewall of at least 1.7 mm. 
     
     
         29 . The plastic container of  claim 20 , wherein a ratio of the depths of the first depth portion to the second depth portion for each rib of the plurality of circumferentially positioned ribs is at least 2:1. 
     
     
         30 . The plastic container of  claim 20 , wherein a ratio of the depths of the first depth portion to the second depth portion for each rib of the plurality of circumferentially positioned ribs is at least 4:1. 
     
     
         31 . The plastic container of  claim 20 , wherein each strap rib of the plurality of strap ribs defines a strap rib surface extending to the sidewall with a positive slope relative to the resting surface, and wherein the positive slope angle at a point tangent to the strap rib surface is at least 30 degrees. 
     
     
         32 . The plastic container of  claim 31 , wherein the positive slope angle at a point tangent to the strap rib surface is at least 45 degrees. 
     
     
         33 . The plastic container of  claim 32 , wherein the positive slope angle at a point tangent to the strap rib surface is at least 55 degrees. 
     
     
         34 . The plastic container of  claim 20 , wherein each strap rib of the plurality of strap ribs defines a strap rib surface extending to the sidewall with a positive slope relative to the resting surface and with a positive slope radius, and wherein the positive slope radius at a point along the strap rib surface is from 30 mm to 70 mm. 
     
     
         35 . The plastic container of  claim 34 , wherein a ratio of the positive slope radius to a diameter of the sidewall is in the range from 5:1 to 1:5. 
     
     
         36 . The plastic container of  claim 20 , wherein each strap rib of the plurality of strap ribs defines a strap rib surface extending to the sidewall with a positive slope relative to the resting surface and with a positive slope radius, and wherein, at a distance from the resting surface parallel to the longitudinal axis, the positive slope radius changes from a first value to a second value different than the first value, and wherein the distance is between 10 mm and 30 mm. 
     
     
         37 . The plastic container of  claim 36 , wherein a ratio of the distance to the overall container height is 1:7 or greater. 
     
     
         38 . The plastic container of  claim 20 , wherein each strap rib of the plurality of strap ribs defines a strap rib surface extending to the sidewall with a positive slope relative to the resting surface, and wherein the strap rib surface transitions to the sidewall at a distance from the resting surface parallel to the longitudinal axis of greater than 15 mm. 
     
     
         39 . The plastic container of  claim 38 , wherein the distance is greater than 25 mm.