04451994 is referenced by 70 patents and cites 6 patents.

A shock-absorbing midsole component in footwear is disclosed and is made up of spaced upper and lower flexible coextensive layers having a closure strip extending therearound and sealing the layers to form a sealed air space therebetween. A plurality of support ribs extend in spaced relation to each other between the layers and through the interior air space. A one-piece molding process is employed in forming the layers, ribs and common diaphragm of the interior air space. The closure strip is a one-piece element united into an outer peripheral groove formed in surrounding relation to the ribs and diaphragm between the layers.

Title
Resilient midsole component for footwear
Application Number
6/382178
Publication Number
4451994
Application Date
May 26, 1982
Publication Date
June 5, 1984
Inventor
Donald M Fowler
271 Rock Ave., Golden, 80401
CO, US
Agent
John E Reilly
IPC
A43B 13/18
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