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.
Claims25
A stepped blow pin comprising:
- at least two regions;
- a first region for forming a bottle sealing surface with a first diameter, and
- a second region positioned below the first region and having a second and greater diameter.
A stepped blow pin for forming a high quality sealing surface on an extrusion blow molded vessel comprising:
- a body having a proximal end and a distal end;
- an air passage through which air can be injected;
- a top surface positioned at the proximal end;
- a bottom surface positioned at the distal end;
- an upper and a lower region disposed along the cylindrical body with differing outer diameters;
- where the upper region includes a seal forming surface region;
- a first and a second transition region;
- where the first transition region is disposed between the upper and lower region, and the second transition region is disposed between the lower region and the bottom surface.
A stepped blow pin for forming a high quality sealing surface on a extrusion blow molded vessel comprising:
- a cylindrical body having a proximal end and a distal end;
- an air passage through which air can be injected;
- a top surface positioned at the proximal end;
- a bottom surface positioned at the distal end;
- an upper region, a middle region and a lower region disposed along the cylindrical body with differing outer diameters;
- where the upper region includes a seal forming surface region;
- a first and a second transition region;
- where the first transition region is disposed between the upper and middle region and the second transition region is disposed between the middle region and the lower region.
A stepped blow pin for forming a high quality sealing surface on a extrusion blow molded vessel comprising:
- a cylindrical body having an upper region, a middle region, a lower region, a top surface disposed at a proximal end and a bottom surface disposed at a distal end;
- an air passage through which air can be injected;
- a seal forming surface region disposed between the upper and middle regions;
- where the seal forming surface region and the lower region have equal outer diameter, which is different from an outer diameter of the upper and middle region;
- a first transition region disposed between the upper region and the seal forming surface region;
- a second transition region disposed between the seal forming surface region and the middle region;
- a third transition region disposed between the middle region and the lower region;
- and
- a fourth transition disposed between the lower region and the bottom surface.
Dependencies are inferred from the claim text.