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US 6,823,624 B2Granted
Plastic article with protuberance
AssigneeSit S.P.A.
InventorCarlo Proserpio
Life of this patent
Estimating the term…
Abstract
A plastic article includes a first plastic portion having a series of protrusions extending therefrom and adjacent to each other. A second plastic portion is molded between and over the protrusions of the first plastic portion, thereby forming a protuberance on the plastic article in a desired profile.
Claims13
A plastic article, being a container in the form of a flower pot, comprising:
- a first plastic portion having a series of protrusions extending therefrom and adjacent to each other, the protrusions being fins with a zigzag pattern;
- and
- a second plastic portion molded between and over the protrusions of the first plastic portion, thereby forming a projecting protuberance on the plastic article having a desired profile, at least some of the protrusions extending into locations of the protuberance that are projected from the plastic article, the protrusions extending from the first plastic portion being contoured to provide a general approximation of the desired profile of the protuberance, the first plastic portion being an inner container portion and the second plastic portion being an outer container portion molded over the inner container portion, the protuberance forming an upper rim of the container.
A method of forming a plastic article, being a container in the form of a flower pot, comprising:
- providing a first plastic portion having a series of protrusions extending therefrom and adjacent to each other, the protrusions being fins with a zigzag pattern, the first plastic portion being formed by injection molding in a first mold configuration;
- and
- injection molding a second plastic portion between and over the protrusions of the first plastic portion to form a projecting protuberance on the plastic article of a desired profile, a least some of the protrusions extending into locations of the protuberance that are projected from the plastic article, the first plastic portion being an inner container portion and the second plastic portion being an outer container portion molded over the inner container portion, the protuberance being an upper rim of the container.
Dependencies are inferred from the claim text.