Cold box lid

Receptacles – Closures – Secondary closure within parameter of primary closure

Reexamination Certificate

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Details

C220S259100, C206S776000

Reexamination Certificate

active

06938791

ABSTRACT:
A lid for a cold box has a shell-like configuration with front and rear shell members hingedly connected. The front shell member pivots relative to the rear shell member to provide access to the interior of the cold box when the front shell member is lifted by a handle. A viewing window is provided in the front shell member. The rear shell member is vented to provide passageways for the intake and outtake of air.

REFERENCES:
patent: 3417897 (1968-12-01), Johnson
patent: 4143695 (1979-03-01), Hoehn
patent: 4449761 (1984-05-01), Davis et al.
patent: D305490 (1990-01-01), Conley et al.
patent: 5064088 (1991-11-01), Steffes
patent: 6026647 (2000-02-01), Coffee et al.
patent: D452418 (2001-12-01), Moffett et al.
patent: 6523713 (2003-02-01), Helms
patent: 2000-139314 (2000-05-01), None

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