Winding – tensioning – or guiding – Convolute winding of material – Simultaneous winding
Reexamination Certificate
2011-05-10
2011-05-10
Kim, Sang (Department: 3654)
Winding, tensioning, or guiding
Convolute winding of material
Simultaneous winding
C242S530200, C242S615110
Reexamination Certificate
active
07938355
ABSTRACT:
The device includes a supporting surface, with an initial curved surface portion, and a substantially flat surface portion. Above the supporting surface, extends at least part of a first path and of a second path of a first ply and of a second ply. The two paths are disposed adjacent to the supporting surface and the initial curved surface portion has a convexity facing the first path. Also provided is a system to supply air between the first path of the first ply and the supporting surface, to help support the web material with respect to the supporting surface.
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Anonymous, “Low Velocity Airfoil”, Research Disclosure, Mason Publications, Hampshire, Great Britain, vol. 434, No. 83, Jun. 2000, XP007126287.
Breiner & Breiner L.L.C.
Fabio Perini S.p.A.
Kim Sang
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