Injection-molded hollow product
AssigneeSorensen Research and Development Trust
InventorsPaul Philip Brown, Jens Ole Sorensen
Life of this patent
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Abstract
A hollow injection-molded product has a sidewall that is formed in a mold cavity by injecting molding material. An interior surface of the sidewall includes at least one ridge that is shaped by a flow channel in the mold cavity. The flow channel directs the flow of the injected molding material in the mold cavity. The cross-sectional dimension of the ridge normal to the direction of flow of the molding material that is injected in the flow channel generally decreases in the direction of flow. A label is inserted into the mold cavity prior to injection of the molding material so that the label is on the exterior surface of the sidewall of the hollow product.
Claims10
A hollow injection-molded product, comprising:
- a sidewall formed in a mold cavity by injected molding material;
- wherein an interior surface of the sidewall includes at least one ridge shaped by a flow channel in the mold cavity that directs the flow of the injected molding material in the mold cavity;
- and
- wherein the cross-sectional dimension of the ridge normal to the direction of flow of the molding material that is injected in the flow channel generally decreases in the direction of flow.
A process of making a hollow product, comprising the steps of:
- (a) providing a mold cavity that shapes a hollow product having a sidewall, wherein an interior surface of the sidewall includes at least one ridge shaped by a flow channel in the mold cavity that directs the flow of the injected molding material in the mold cavity;
- and
- (b) injecting molding material into the mold cavity to form the product;
- wherein step (a) comprises the step of:
- (c) shaping the flow channel so that the cross-sectional dimension of the ridge normal to the direction of flow of the molding material that is injected in the flow channel generally decreases in the direction of flow.
Dependencies are inferred from the claim text.