Pocket sealing machine including a retractable suction head

Details Pocket sealing machine including a retractable suction head Pocket sealing machine including a retractable suction head

2006-11-07

2006-11-07

Gerrity, Stephen F. (Department: 3721)

Package making

With contents treating

Vacuum or inert atmosphere

C053S374800

Reexamination Certificate

active

07131251

ABSTRACT:
An opening of a plastic bag with an article stored therein is placed between a cover and a vacuum assembly of a pocket sealing machine. Moving a rib to a second slot will extend a suction head into the opening of the bag. Pressing the cover will enable an electric heater to start heat sealing the opening of the bag. The machine can be relatively moved across the opening of the bag until the suction head is wrapped. After disabling the electric heater, a switch activates a motor for disabling the heat sealing and enabling the suction head to make a vacuum in the bag. Releasing the switch will deactivate the motor. Moving the rib back to a first slot will retract the suction head, and the machine is moved to cover the opening of the bag. Pressing the cover toward the vacuum assembly at that time will enable the electric heater to seal the opening.

REFERENCES:
patent: 3869842 (1975-03-01), Verbeke
patent: 4330975 (1982-05-01), Kakiuchi
patent: 4860523 (1989-08-01), Teteishi et al.
patent: 5215445 (1993-06-01), Chen
patent: 5287680 (1994-02-01), Lau
patent: 5551213 (1996-09-01), Koelsch et al.
patent: 6467242 (2002-10-01), Huang
patent: 1390023 (1975-04-01), None
patent: 07187144 (1995-07-01), None

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