US2007178997A1PendingUtilityA1

Bladder structure of a football

Assignee: CHANG YEN-LIPriority: Jan 31, 2006Filed: Jan 31, 2006Published: Aug 2, 2007

Est. expiryJan 31, 2026(expired)· nominal 20-yr term from priority

Inventors:Yen-Li Chang

A63B 2243/007A63B 41/02A63B 43/002

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References

Claims

Abstract

A football bladder includes an oval body and multiple ribs formed on an outer periphery of the oval body. After a skin is attached to the outer periphery of the oval body, protruding strips are formed on an outer periphery of the skin.

Claims

exact text as granted — not AI-modified

1 . A football bladder comprising: 
 an oval body; and    multiple ribs formed on an outer periphery of the oval body,    whereby after a skin is attached to the outer periphery of the oval body to enclose the ribs, multiple protruding strips are formed on an outer periphery of the skin.    
   
   
       2 . The football bladder as claimed in  claim 1 , wherein the ribs on two ends of the oval body are annular so as to surround the outer periphery of the oval body.  
   
   
       3 . The football bladder as claimed in  claim 2 , wherein a void is defined in a central mediate portion of the oval body so that a seam is able to be formed on the void after the skin is attached to the outer periphery of the oval body.

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