Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1994-04-12
1996-07-16
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156519, 156554, 156555, 1565835, 493197, 493202, B30B 504
Patent
active
055363563
ABSTRACT:
An automated continuous heat sealing apparatus and method are disclosed having dedicated operating stations for fabricating continuous hermetically sealed tubular structures and individual bags from rolls of continuous webs of polymer material, the first web including TYVEK.RTM., as breather bags adapted for gas and steam sterilization. The breather bags are customized to any length depending on the settings of the apparatus. A feeding station holding the rolls of continuous webs longitudinally feeds the continuous webs to a first operating station having a slitter for providing a continuous longitudinal strip of apertures in the second continuous web for cutting material from the slitted second continuous web, and for continuously heat sealing a first set of seams to join the first and second webs. A second operating station continuously heat seals a second set of seams to join the second and third continuous webs for forming a continuous tubular structure. An optional third station intermittently heat seals transverse seams at predetermined lengths along the longitudinal length of the continuous tubular structure, and an optional fourth operating station cuts the continuous tubular structure a predetermined distance from the transverse seams to form individual breather bags.
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Clean Room Products, Inc.
Sells J.
Simmons David A.
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