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US 2006/0125145 A1Published application
Rotational plastics molding with internally mounted mold features
AssigneeSolar Plastics, Inc.
InventorsNathan King, Charles Carlsen
Life of this patent
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Abstract
A rotational mold for plastic objects includes a feature body assembled in an aperture of a main body such that the object can be released from the main body before releasing it from the feature body. In some cases, the feature body may be repositioned on the main body to manufacture different versions of the object with the same mold.
Claims23
A rotational mold, comprising:
- a main body having an interior surface defining a first portion of a molded object and having an aperture therethrough;
- a feature body having an interior surface defining a second portion of the molded object, and having a flange conforming to the aperture,
- where the feature-body flange extends beyond any other part of the feature body in a manner such that the main body is removable from the molded object without removing the feature body from the molded object.
A rotational mold, comprising:
- a main body having an interior surface defining a first portion of a molded object and having an aperture therethrough;
- a feature body having an interior surface defining a second portion of the molded object, and having a flange conforming to the aperture;
- a mount for sealing the feature body to the interior surface of the main body such that the main body is removable from the molded object without removing the feature body from the molded object.
A method for rotational molding of a plastic object, comprising:
- attaching a feature body to a main body of a mold to the interior through an aperture in the main body so as to seal the feature body to the main body;
- introducing a plastic resin into the mold;
- heating and rotating the mold so as to cure the resin;
- separating the main body so as to remove it from the object without removing the feature body;
- thereafter, separating the feature body to remove it from the object.
2 more elements
Dependencies are inferred from the claim text.