US2002169039A1PendingUtilityA1

Method for making a football

43
Priority: May 10, 2001Filed: May 10, 2001Published: Nov 14, 2002
Est. expiryMay 10, 2021(expired)· nominal 20-yr term from priority
Inventors:Jen-Chieh Wu
A63B 2243/007A63B 41/08A63B 45/00
43
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A method for making a football includes the steps of cutting rubber material to a predetermined dimension; vulcanizing the rubber material; attaching a sponge layer to a fabric layer; attaching the sponge layer and the fabric layer to the rubber material; cutting the combined rubber material, sponge layer and the fabric layer into elliptical pieces; sewing the elliptical pieces to form an ellipsoid body and defining an inlet opening, wherein edges of the elliptical pieces are sewed together and thus a ellipsoid is formed; defining holes in adjacent pieces of the ellipsoid body; turning the ellipsoid body inside-out and inserting a bladder into the ellipsoid body through the inlet opening; and lacing the holes together with a plastic lace.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A method for making a football comprising the steps of: 
 cutting rubber material to a predetermined dimension;    vulcanizing the rubber material;    attaching a sponge layer to a fabric layer;    attaching the combined sponge and fabric layer to the rubber material;    cutting the combined rubber material, sponge layer and the fabric layer into elliptical pieces;    sewing the elliptical pieces to form an ellipsoid body and defining an inlet opening, wherein edges of the elliptical pieces are sewed together and thus an ellipsoid is formed;    defining holes in adjacent elliptical pieces of the ellipsoid body;    turning the ellipsoid body inside-out and inserting a bladder into the ellipsoid body through the inlet opening; and    lacing the holes together with a plastic lace.    
     
     
         2 . The method as claimed in  claim 1 , wherein a sulfur is added in the vulcanizing step to strengthen the rubber material.  
     
     
         3 . The method as claimed in  claim 1 , wherein the sponge layer is sewed to the fabric layer.  
     
     
         4 . The method as claimed in  claim 1 , wherein the sponge layer is attached to the fabric layer by gluing.  
     
     
         5 . The method as claimed in  claim 1 , wherein the sponge layer together with the fabric layer is attached to the rubber material by gluing.  
     
     
         6 . The method as claimed in  claim 1 , wherein the combined sponge layer and fabric layer are attached to the rubber material by sewing.

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