Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Reexamination Certificate
2011-03-08
2011-03-08
Del Sole, Joseph S (Department: 1743)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
C264S211150, C264S905000, C425S072200, C425S38200R
Reexamination Certificate
active
07901614
ABSTRACT:
Methods and apparatus for meltblowing utilize an auxiliary manifold to dispense a fluid between an orifice of a die that is expelling polymeric fibers and an exit of a duct that is dispensing a secondary flow of gas onto the fibers. The fluid dispensed from the auxiliary manifold reduces a recirculation zone of the secondary flow between the exit and the orifice that, absent the fluid from the manifold, results in errant fibers that are blown back into the face of the die by the recirculating secondary flow.
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Breister James C.
Chen Andrew W.
Klinzing William P.
Linabery Matthew S.
Sager Patrick J.
3M Innovative Properties Company
Baker James A.
Del Sole Joseph S
Franzen Rick L.
Ochylski Ryan
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