Package making – Methods – Envelope or triangular flap fold
Patent
1997-08-13
1999-05-04
Coan, James F.
Package making
Methods
Envelope or triangular flap fold
53 69, 53 76, 532843, 493 23, 493245, B43M 504, B65B 504, B65B 5702
Patent
active
058990500
ABSTRACT:
Enveloping apparatus with an envelope filling position (4) and, extending therefrom, an envelope transfer track (46) extending along a closing nip (49) beside the envelope transfer track (46). Beyond the closing nip (49) the envelope transfer track (46) comprises opposite surfaces and a brake, blocking or drive mechanism (60) for at least delaying movement in direction of transport of those surfaces. The control structure (43, 61, 72) is adapted to activate an upsetting feature (55, 56, 71) in response to a displacement of that envelope (5) from the envelope filling position (4) through a fixed, specific distance. With the opposite surfaces with a nip thereinbetween, movement in direction of transport of envelopes with the leading edge in different positions can be delayed, stopped or reversed, without requiring adjusting a stop or the like. There is also described a method for filling and closing envelopes.
REFERENCES:
patent: 4418515 (1983-12-01), Foster et al.
patent: 4903456 (1990-02-01), Meur
patent: 4924652 (1990-05-01), Krasuski et al.
patent: 5125214 (1992-06-01), Orsinger et al.
patent: 5152122 (1992-10-01), DeBarber et al.
patent: 5251425 (1993-10-01), Kern
patent: 5414977 (1995-05-01), Cohen
Coan James F.
Hadewe B.V.
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