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US 12,677,913 B1Granted
Method of making footwear using molds
AssigneeHeartland Footwear, Inc.
InventorsAfshin Enshaie, Omar Rojas
Life of this patent
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Abstract
Injection molded footwear having a flared sole is made using an injection molding method with two different molds. Both molds share the same shell and the same last, but have different plates. The first mold has a void for an upper and the second mold has a void for the flared sole in the shell.
Claims8
A method of making footwear having an upper and a sole by injection molding, the method comprising:
- closing a first mold having a shell, a first plate and a last;
- injection molding the upper in the first mold;
- closing a second mold having the shell, a second plate and the last;
- and
- injection molding at least a portion of the sole in the shell in the second mold, the portion of the sole flaring outwardly of where the upper and the portion of the sole are in contact.
2 more elements
Dependencies are inferred from the claim text.