Air evacuation systems and methods for lining a container

Details Air evacuation systems and methods for lining a container Air evacuation systems and methods for lining a container

2007-03-01

2008-11-18

Durand, Paul R (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

C493S313000

Reexamination Certificate

active

07452317

ABSTRACT:
An air evacuation system is used for lining a container with a flexible liner. The air evacuation system includes a platform for supporting the container in a formed state, the container including the liner in an unseated position within the cavity. The platform includes a base and a floor extending substantially parallel and spaced apart from the base such that a first air gap is formed between said base and said floor. The floor includes at least one opening therethrough and at least one spacer tab extending therefrom. The vacuum assembly is coupled to the platform and includes a pump in airflow communication with at least one inlet positioned in said base, said vacuum assembly is configured to draw air from the cavity such that the liner is positioned substantially adjacent to the interior surface of the container in a seated position.

REFERENCES:
patent: 2328798 (1943-09-01), Gardner
patent: 2736065 (1956-02-01), Wilcox
patent: 4052931 (1977-10-01), Morse et al.
patent: 4537584 (1985-08-01), Everman et al.
patent: 5028197 (1991-07-01), Krein et al.
patent: 5735786 (1998-04-01), Krueger et al.
patent: 6132350 (2000-10-01), Krueger et al.
patent: 6773385 (2004-08-01), Johnson et al.

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