Center cylinder ejection assist

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein said ejector rods are extended 0.25 to 0.5 inches.

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein said ejector rods are extended more than 0.5 inches.

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein said pistons retract into an open space between said head of said piston and said end cap.

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein said blow mold further comprises a cylinder body around said ejector rod and wherein said pistons extend into an open space defined by said heel of said piston, said cylinder body and said ejector rod.

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein the blow mold comprises two halves, each half comprising a back plate and a cavity block, wherein said end-cap is a part of said back plate and closes off one end of said cylinder body, each of said cylinder bodies are mounted in one of said back plates, and each of said ejector rods and said pistons are housed in one of said back plates.

A method of ejecting a container from a blow mold, the method comprising the steps of:

• opening a blow mold containing a container, said blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind said heel, and a pair of ejector rods, each ejector rod coupled to a different one of said pair of pistons;
• forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods to maintain contact with an opposite side of a center portion of the container in said blow mold and pushing the container from said blow mold;
• and
• forcing a fluid against said heel of each of said pair of pistons operative to retract said pair of ejector rods away from the container when the container is separated from said blow mold, and wherein said forcing a fluid against each head of each of said pair of pistons, extending each of said ejector rods occurs simultaneously with said opening.