INSULATED DOUBLE WALLED DRINKING VESSEL AND METHOD OF MAKING THE SAME

An insulated drinking vessel, e.g., a tumbler, and method of making the same is disclosed. The vessel basically comprises a pre-molded inner vessel formed of a plastic material having a sidewall is disposed within a pre-molded outer vessel formed of a plastic material having a sidewall to form a sub...

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Bibliographische Detailangaben
1. Verfasser: MELTON THOMAS
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An insulated drinking vessel, e.g., a tumbler, and method of making the same is disclosed. The vessel basically comprises a pre-molded inner vessel formed of a plastic material having a sidewall is disposed within a pre-molded outer vessel formed of a plastic material having a sidewall to form a subassembly having an insulating air space between the sidewalls. Each of the vessels includes a contoured surface including at least one projection or depression. A ring of plastic material is molded in-situ on the contoured surfaces to cause portions thereof to melt and intermingle with the plastic material of the ring to form a homogenous joint having a depth no greater than approximately 0.003 inch. The ring forms the rim or lip of the insulated drinking vessel.