US2012233877A1PendingUtilityA1

High-stability multi-density midsole

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Assignee: SWIGART JOHNPriority: Mar 18, 2011Filed: Mar 19, 2012Published: Sep 20, 2012
Est. expiryMar 18, 2031(~4.6 yrs left)· nominal 20-yr term from priority
Inventors:John F. Swigart
A43B 13/188A43B 7/226A43B 3/0063A43B 7/24A43B 13/186A43B 13/127A43B 7/143A43B 7/223A43B 7/148A43B 7/142
53
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Claims

Abstract

Embodiments herein relate generally to the field of footwear, and more particularly to components of performance footwear, such as midsoles, and in particular related to high-stability, multi-density midsoles. In some embodiments, the midsoles disclosed herein may protect a user from over-pronation and/or over-supination of the foot. Embodiments of the high stability midsoles disclosed herein may include a cushioning element and a mid-foot element. In various embodiments, the mid-foot element may be configured to mate with the cushioning element in the mid-foot portion, and may include at least one posterior tail configured to align with a medial or lateral edge of the heel portion of the cushioning element. Alternatively, the midsole may have integrated cushioning regions with different response property regions.

Claims

exact text as granted — not AI-modified
1 . A high stability midsole comprising:
 a cushioning element comprising mid-foot and heel portions; and   a mid-foot element configured to mate with the cushioning element in the mid-foot portion, wherein the mid-foot element comprises at least one posterior tail configured to align with a medial or lateral edge of the heel portion of the cushioning element.   
     
     
         2 . The high stability midsole of  claim 1 , wherein the heel portion comprises low density foam, and wherein the low density foam comprises 40-60 Asker C foam. 
     
     
         3 . The high stability midsole of  claim 1 , wherein the heel portion comprises low density foam, and wherein the low density foam comprises 50-60 Asker C foam. 
     
     
         4 . The high stability midsole of  claim 1 , wherein the mid-foot element comprises high density foam, and wherein the high density foam comprises 60-75 Asker C foam. 
     
     
         5 . The high stability midsole of  claim 1 , wherein the mid-foot element comprises high density foam, and wherein the high density foam comprises 65-75 Asker C foam. 
     
     
         6 . The high stability midsole of  claim 1 , wherein the heel portion comprises 50-60 Asker C foam, and wherein the mid-foot element comprises 60-75 Asker C foam. 
     
     
         7 . The high stability midsole of  claim 1 , wherein the mid-foot element comprises a medial posterior tail configured to align with a medial edge of the heel portion of the cushioning element, and a lateral posterior tail configured to align with a lateral edge of the heel portion of the cushioning element. 
     
     
         8 . The high stability midsole of  claim 7 , wherein the medial posterior tail is long and the lateral posterior tail is of medium length. 
     
     
         9 . The high stability midsole of  claim 7 , wherein the medial posterior tail is long and the lateral posterior tail is short. 
     
     
         10 . The high stability midsole of  claim 7 , wherein the medial posterior tail is of medium length and the lateral posterior tail is of medium length. 
     
     
         11 . The high stability midsole of  claim 7 , wherein the medial posterior tail is of medium length and the lateral posterior tail is short. 
     
     
         12 . The high stability midsole of  claim 7 , wherein the medial posterior tail is of medium length and the lateral posterior tail is long. 
     
     
         13 . The high stability midsole of  claim 7 , wherein the medial posterior tail is longer than the lateral posterior tail. 
     
     
         14 . The high stability midsole of  claim 7 , wherein the medial posterior tail is shorter than the lateral posterior tail. 
     
     
         15 . The high stability midsole of  claim 7 , wherein the medial posterior tail and the lateral posterior tail are substantially the same length. 
     
     
         16 . The high stability midsole of  claim 1  wherein the cushioning element further comprises a fore-foot portion, and wherein the mid-foot element comprises a medial anterior tail configured to align with a medial edge of the fore-foot portion of the cushioning element and a lateral anterior tail configured to align with a lateral edge of the fore-foot portion of the cushioning element. 
     
     
         17 . The high stability midsole of  claim 16 , wherein the medial anterior tail is longer than the lateral anterior tail. 
     
     
         18 . The high stability midsole of  claim 1 , wherein the midsole is configured to be customizable to suit a particular user, gait problem, or terrain. 
     
     
         19 . The high stability midsole of  claim 1 , wherein the cushioning element and the mid-foot element are two separate components of the midsole. 
     
     
         20 . The high stability midsole of  claim 1 , wherein the cushioning element and the mid-foot element are integral components of the midsole. 
     
     
         21 . A high stability midsole comprising:
 a cushioning element comprising fore-foot, mid-foot, and heel portions, wherein the heel portion comprises 40-60 Asker C foam; and   a mid-foot element comprising 60-75 Asker C foam and configured to mate with the cushioning element in the mid-foot portion, wherein the mid-foot element comprises:
 a medial posterior tail configured to align with a medial edge of the heel portion of the cushioning element; 
 a lateral posterior tail configured to align with a lateral edge of the heel portion of the cushioning element; 
 a medial anterior tail configured to align with a medial edge of the fore-foot portion of the cushioning element; and 
 a lateral anterior tail configured to align with a lateral edge of the fore-foot portion of the cushioning element. 
   
     
     
         22 . The high stability midsole of  claim 21 , wherein the medial posterior tail is longer than the lateral posterior tail. 
     
     
         23 . The high stability midsole of  claim 21 , wherein the medial posterior tail is shorter than the lateral posterior tail. 
     
     
         24 . The high stability midsole of  claim 21 , wherein the medial posterior tail is substantially the same length as the lateral posterior tail. 
     
     
         25 . The high stability midsole of  claim 21 , wherein the medial anterior tail is longer than the lateral anterior tail. 
     
     
         26 . The high stability midsole of  claim 21 , wherein the cushioning element and the mid-foot element are two separate components of the midsole. 
     
     
         27 . The high stability midsole of  claim 21 , wherein the cushioning element and the mid-foot element are integral components of the midsole.

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