Method and apparatus for forming blow molded vessels
AssigneeHeartland Consumer Products, LLC
InventorTeodor H. Gelov
Life of this patent
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Abstract
Methods and apparatus for molding a vessel, such as a bottle, with a high quality sealing surface are described herein. In one embodiment, a stepped blow pin can be used to form the sealing surface of a bottle. A stepped blow pin can include a body with a distal end and a proximal end. The blow pin can include a first region that includes a first diameter and a first engagement surface. The blow pin can further include a second region that includes a second diameter. The second region can be positioned between the first region and the distal end. A transition section can be positioned between the first region and second region. The blow pin can also include a top surface position at the proximal end, and a bottom surface positioned at the distal end.
Claims11
A method of forming a vessel with a high quality sealing surface using a blow molding process, the method including:
- providing a mold that comprises:
- a first mold body comprising:
- a first cavity;
- a first molding surface;
- and
- a first neck forming region;
- and
- a second mold body comprising:
- a second cavity;
- a second molding surface;
- and
- a second neck forming region;
- providing a plastic material;
- providing a pin that comprises:
- a body with a distal end and a proximal end;
- a channel passing through the pin from the distal end to the proximal end;
- a first region with a first diameter, the first region including a first engagement surface;
- a second region with a second diameter that is greater than the first diameter of the first region, where the second region is positioned between the first region and the distal end;
- a first transition positioned between the first region and second region;
- a top surface position at the proximal end;
- and
- a bottom surface at the distal end;
- positioning the plastic material within the mold;
- inserting the pin into the plastic material, where the first engagement surface is positioned proximate to the first neck forming region and second neck forming region;
- engaging the plastic material with the first molding surface and second molding surface;
- cooling the mold to solidify the plastic material;
- and
- remove the solidified plastic material from the mold.
Dependencies are inferred from the claim text.