Special machines for blow molding have been developed. (RDC 8/10/2009) 

Blow Molding   
Molding   
Processing    

Recent US Patents

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6/15/2010

7,736,142
Blow moulding machine for the moulding of containers, comprising a mould base which is biased upwards

4/28/2009

7,524,182
Blowing mechanism

7,524,181
Blowing assembly