Method of manufacturing an injected and blown product
AssigneeThe Procter & Gamble Company
InventorsVincent Hubert M. De Wilde, Guy Hubert Stephane Sylvain Culeron, Francisco Miguel De Tavares Duarte Nogueira
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Abstract
The present relates to a method of manufacturing a product by the steps of i) injecting a sufficiently heated thermoplastic material into a 1st cavity to form a preliminary product comprising a collar having a connecting feature located on the inner surface thereof, then ii) optionally cooling the preliminary product of step i), then iii) blow molding the preliminary product in a 2nd cavity to form a void volume, wherein steps i) to iii) are performed in a single molding unit, then iv) removing the finished product produced in step iii) from the single molding unit.
Claims18
A method of manufacturing a product (1) by the steps of
- i) injecting a sufficiently heated thermoplastic material into a 1st cavity to form a preliminary product (2) comprising a collar (3) having an inner surface (5), wherein a connecting feature (4) is located on the inner surface (5), then
- ii) cooling the collar (3) of the preliminary product (2) of step i), then an area of the preliminary product (2) to be blown is reheated to a temperature suitable for blow-moulding wherein the collar (3) is not heated, then
- iii) blow moulding the preliminary product in a 2nd cavity to form a void volume (6), wherein said 2nd cavity is partly formed by the preliminary product wherein steps i) to iii) are performed in a single moulding unit to form a finished product, wherein the finished product is a dosing cap.
A method of manufacturing a product (1) by the steps of
- i) injecting a sufficiently heated thermoplastic material into a 1st cavity to form a preliminary product (2) comprising a double wall having a collar (3) and an inner wall (7) wherein a sealing feature (8) is located between the collar (3) and the inner wall (7) wherein the sealing feature (8) annularly circumscribes the inner wall (7) wherein the collar (3) has an inner surface (5) wherein a connecting feature (4) is located on the inner surface (5) wherein the connecting feature is a thread (4) and wherein the sealing feature (8) extends outwardly perpendicular to the connecting feature (4) then
- ii) optionally cooling the preliminary product (2) of step i), then
- iii) blow moulding the preliminary product in a 2nd cavity to form a void volume (6), wherein said 2nd cavity is partly formed by the preliminary product, wherein steps i) to iii) are performed in a single moulding unit to form a finished product, wherein the finished product is a dosing cap.
A method of manufacturing a product (1) by the steps of
- i) injecting a sufficiently heated thermoplastic 1st material into a 1st cavity to form a 1st preliminary product (2) comprising a collar (3) having a connecting feature (4) located on the inner surface (5) thereof, then
- ii) cooling the 1st preliminary product (2) of step i), wherein said 1st preliminary product forms part of a new cavity, then
- iii) injecting a sufficiently heated thermoplastic 2nd material into the new cavity of step ii) wherein the 1st material of step i) and the 2nd material of step ii) are in direct contact with one another and are at a temperature sufficient to achieve bonding, to form a 2nd preliminary product, and wherein said 1st material is not the same material as said 2nd material, then
- iv) blow moulding the 2nd preliminary product of step iii) in a 2nd cavity to form a void volume (6),
- wherein steps i) to iv) are performed in a single moulding unit to form a finished product.
Dependencies are inferred from the claim text.