Method for reforming a portion of a plastic container to include a transferable element, and the resulting container
First Claim
1. A method of reforming a portion of a plastic container, comprising:
- providing a previously formed and cooled plastic container having a smaller upper portion and a larger remainder;
directing energy from a heater onto only the upper portion of the container to heat the upper portion, the remainder of the container remaining relatively unheated;
contacting the upper portion of the container with a contact surface of first and second reforming tools, the contact surface having at least one embossed or imprinted characteristic or at least one transferable element and the first and second reforming tools being spaced apart from the heater and defining a cavity receiving the upper portion of the container after the upper portion has been heated;
only the heated upper portion between the first and second reforming tools to eliminate manufacturing imperfections on the upper portion of the container, to reform the upper portion of the container, and to transfer to the upper portion of the container the at least one embossed or imprinted characteristic or at least one transferable element; and
removing the reforming tools from the upper portion of the container, wherein manufacturing imperfections have been eliminated from the upper portion of the container, the upper portion of the container has been reformed, and the upper portion of the container includes the at least one embossed or imprinted characteristic or at least one transferable element.
6 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for reforming a portion of a blow molded plastic container includes directing energy from a heater onto the portion of the container so as to heat the portion while leaving the remainder of the container relatively unheated. The heated portion of the container is then engaged by a reforming tool having an embossed or imprinted characteristic on a contact surface of the reforming tool so as to reform the portion of the container and form a three-dimensional feature thereon which is not reproducible without using the method and/or apparatus of the present invention. Alternatively, the heated portion of the container is engaged by a reforming tool having a transferable element on a contact surface of the reforming tool so as to reform the portion of the container and transfer the transferable element to the portion of the container.
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Citations
17 Claims
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1. A method of reforming a portion of a plastic container, comprising:
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providing a previously formed and cooled plastic container having a smaller upper portion and a larger remainder; directing energy from a heater onto only the upper portion of the container to heat the upper portion, the remainder of the container remaining relatively unheated; contacting the upper portion of the container with a contact surface of first and second reforming tools, the contact surface having at least one embossed or imprinted characteristic or at least one transferable element and the first and second reforming tools being spaced apart from the heater and defining a cavity receiving the upper portion of the container after the upper portion has been heated; only the heated upper portion between the first and second reforming tools to eliminate manufacturing imperfections on the upper portion of the container, to reform the upper portion of the container, and to transfer to the upper portion of the container the at least one embossed or imprinted characteristic or at least one transferable element; and removing the reforming tools from the upper portion of the container, wherein manufacturing imperfections have been eliminated from the upper portion of the container, the upper portion of the container has been reformed, and the upper portion of the container includes the at least one embossed or imprinted characteristic or at least one transferable element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of reforming a portion of a plastic container, comprising:
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providing a previously formed and cooled plastic container having a smaller upper portion and a larger remainder; directing energy from a heater onto only the upper portion of the container to heat the upper portion, the remainder of the container remaining relatively unheated; contacting the upper portion of the container with a contact surface of first and second reforming tools, the contact surface having at least one embossed or imprinted characteristic or at least one transferable element and the first and second reforming tools being spaced apart from the heater and defining a cavity receiving the upper portion of the container after the upper portion has been heated; cooling the contact surface of the reforming tools; compressing only the heated upper portion between the first and second reforming tools to eliminate manufacturing imperfections on the upper portion of the container, to reform the upper portion of the container, and to transfer to the upper portion of the container the at least one embossed or imprinted characteristic or at least one transferable element; venting air from between the contact surface and the upper portion of the container via an air gap extending from the contact surface; and removing the reforming tools from the upper portion of the container, wherein manufacturing imperfections have been eliminated from the upper portion of the container, the upper portion of the container has been reformed, and the upper portion of the container includes the at least one embossed or imprinted characteristic or at least one transferable element.
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17. A method of reforming a portion of a plastic container, comprising:
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providing a previously formed and cooled plastic container having a smaller upper portion and a larger remainder; directing energy from a heater onto only the upper portion of the container to heat the upper portion, the remainder of the container remaining relatively unheated; contacting the upper portion of the container with a contact surface of first and second reforming tools, the contact surface having at least one embossed or imprinted characteristic or at least one transferable element and the first and second reforming tools being spaced apart from the heater and defining a cavity receiving the upper portion of the container after the upper portion has been heated; cooling the contact surface of the reforming tools using a chiller reducing the temperature of a coolant and a pump circulating the coolant through the chiller and to the reforming tools; controlling the coolant temperature; compressing only the heated upper portion between the first and second reforming tools to eliminate manufacturing imperfections on the upper portion of the container, to reform the upper portion of the container, and to transfer to the upper portion of the container the at least one embossed or imprinted characteristic or at least one transferable element; venting air from between the contact surface and the upper portion of the container via an air gap extending from the contact surface; and removing the reforming tools from the upper portion of the container, wherein manufacturing imperfections have been eliminated from the upper portion of the container, the upper portion of the container has been reformed, and the upper portion of the container includes the at least one embossed or imprinted characteristic or at least one transferable element.
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Specification