System and method for sealing a flapless envelope

Details System and method for sealing a flapless envelope System and method for sealing a flapless envelope

1995-04-20

1996-10-01

Sipos, John

Package making

Methods

Envelope or triangular flap fold

532843, 53569, B65B 1148

Patent

active

055601855

ABSTRACT:
A system and a method for sealing a flapless envelope are provided. The sealing system has a translating station for moving the flapless envelope via a conveyor, an opening station for opening an end of a flapless envelope by means of suction and a sealing station for moistenable adhesive on the flapless envelope to thereby seal the flapless envelope. The method has the steps of lifting a top sheet of the flapless envelope using a plurality of suction tubes, holding a bottom sheet of the flapless envelope using a suction controlled bottom plate, applying a fluid onto an adhesive on the bottom sheet of the flapless envelope and squeezing the top sheet to the bottom sheet to seal the flapless envelope.

REFERENCES:
patent: 3478409 (1969-11-01), Votaw et al.
patent: 4033807 (1977-07-01), Neil et al.
patent: 4567711 (1986-02-01), Hodnett et al.
patent: 4951864 (1990-08-01), Dicker
patent: 5007371 (1991-04-01), O'Dea et al.
patent: 5097654 (1992-03-01), Latsounas et al.
patent: 5125214 (1992-06-01), Orsinger et al.
patent: 5301935 (1994-04-01), Miki et al.

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