Mono and multi-layer articles and compression methods of making the same
First Claim
Patent Images
1. A method of forming at least a portion of a preform or closure comprising:
- producing lamellar material;
depositing said lamellar material in a mold cavity section; and
moving a core section having a core relative to the mold cavity section to compress the lamellar material between the core and the mold cavity section, the core section and the mold cavity section having an open and a closed position, the core and the mold cavity section cooperate to define a cavity in the shape of at least a portion of a preform or closure when in the closed position.
8 Assignments
0 Petitions
Accused Products
Abstract
In preferred embodiments methods and apparatuses can produce articles that have formable material. The articles may be mono and multilayer. The articles can be formed by various methods.
161 Citations
42 Claims
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1. A method of forming at least a portion of a preform or closure comprising:
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producing lamellar material;
depositing said lamellar material in a mold cavity section; and
moving a core section having a core relative to the mold cavity section to compress the lamellar material between the core and the mold cavity section, the core section and the mold cavity section having an open and a closed position, the core and the mold cavity section cooperate to define a cavity in the shape of at least a portion of a preform or closure when in the closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A compression molding system for producing multilayer articles, the system comprising:
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a mandrel movable between an open position and a closed position;
a mold cavity configured to receive the mandrel, the mold cavity and the mandrel cooperate to define a cavity in a shape of a preform; and
a material source configured to drop lamellar material suitable for molding into the mold cavity.
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12. A method of forming at least a portion of a preform, the method comprising:
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producing foam material;
depositing said foam material in a mold cavity section, the foam material expanding in the mold cavity section;
providing a core and a mold cavity section having an open and closed position, the core and mold cavity section cooperate to define a cavity in the shape of at least a portion of a preform when in the closed position; and
after depositing the foam material into the mold cavity section, moving the core into the mold cavity section and compressing the foam material therebetween to form at least a portion of a preform. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of forming a preform comprising:
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providing a first core and a first mold cavity section that cooperate to define a first cavity in the shape of at least a portion of a preform when in a closed position;
producing a first melt;
depositing said first melt in the first mold cavity section;
moving the first core relative to the first mold cavity section to compress the first melt to form at least a portion of a preform;
moving the first core out of the first mold cavity section;
producing a second melt; and
compressing the second melt between the at least a portion of the preform and one of a second core and a second mold cavity section. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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41. A system for molding multilayer articles, the system comprising:
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a first molding system comprising a plurality of first cores, a plurality of first cavity sections, and a first source of first material comprising a first output positioned to deliver a first material to at least one of the first cavity sections, the first cores being movable between an open position and a closed position, the first cores are positioned within corresponding first cavity sections when the first cores are in a closed position after the first material is positioned in the corresponding first cavity sections;
a second molding system comprising a plurality of second cores, a plurality of second cavity sections, and a second source of second material comprising a second output positioned to deliver a second material to at least one of the second cavity sections, the second cores being movable between an open position and a closed position; and
a transport system configured to transport preforms from the first molding system to the second molding system. - View Dependent Claims (42)
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Specification