Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material
Reexamination Certificate
2006-10-03
2006-10-03
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Nonplanar uniform thickness material
C428S178000, C428S188000, C428S116000, C428S118000, C428S066400, C277S654000, C277S644000, C277S645000, C277S650000, C277S906000, C277S355000
Reexamination Certificate
active
07115317
ABSTRACT:
A seal has a non-woven fabric folded along lines transverse to the opposite side of the seal and secured by adhesive to fabric strips. The non-woven fabric forms elongated cells with a plurality of the cells receiving inserts to increase seal stiffness. By securing one of these strips to a stationary component of the sealing surfaces, the opposite strip may expand or collapse relative to a movable sealing surface to accommodate excursions of that surface. Multiple layers of cells may be provided in the seals. The inserts may have various cross-sectional configurations including circular, triangular or rhombic and formed of tubes, solid rods or coiled springs.
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Tong Wei
Zhuo Zhangqing
Nixon & Vanderhye P.C.
Pyon Harold
Simone Catherine A.
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