Steam shrink oven

Details Steam shrink oven Steam shrink oven

2008-01-25

2010-10-12

Wilson, Gregory A (Department: 3749)

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

C432S121000, C053S442000, C053S557000

Reexamination Certificate

active

07811084

ABSTRACT:
The present invention discloses a pre-shrink oven and a shrink oven are located at positions where a conveyer belt travels according to a labeling process of bottles. The pre-shrink oven has adjustable steam ejection ducts at two sides thereof. The shrink oven has steam nozzles at two sides. The steam generators are located at the periphery of the shrink oven to generate and deliver steam of different pressures through pipes to the adjustable steam ejection ducts of the pre-shrink oven and the steam nozzles of the shrink oven. When the steam is delivered to the pre-shrink oven heated air passes through apertures of the steam tube to partially preheat and shrink a shrink film without dropping before a final shrinking process is finished. Steam delivered through the steam nozzles can shrink the shrink film securely on bottle bodies of the bottles.

REFERENCES:
patent: 3716606 (1973-02-01), Bazett
patent: 3967995 (1976-07-01), Fabianic
patent: 4059400 (1977-11-01), Heckman et al.
patent: 4066866 (1978-01-01), Fresnel
patent: 4574565 (1986-03-01), Gambetti
patent: 5400570 (1995-03-01), Bennett
patent: 6497119 (2002-12-01), Hartel et al.
patent: 6648634 (2003-11-01), Nava
patent: 6689180 (2004-02-01), Liao

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