Pipes and tubular conduits – Flexible – Braided – interlaced – knitted or woven
Reexamination Certificate
2008-04-29
2008-04-29
Hook, James (Department: 3754)
Pipes and tubular conduits
Flexible
Braided, interlaced, knitted or woven
C138S130000, C428S036910
Reexamination Certificate
active
11369383
ABSTRACT:
A tube for railroad pressurized air braking systems, which tubs can resist up to a free-flame temperature of about 700-800 ° C. for at least 15 minutes, and has a tube substrate made of a synthetic rubber, at least a reinforcement fabric material layer arranged above the tube substrate and a further synthetic rubber layer coating the at least a reinforcement fabric material layer, the tube having moreover at least a layer of a heat resistant material arranged above the synthetic rubber layer and coated by an cuter synthetic rubber layer.
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Costigan James V.
Hedman & Costigan ,P.C.
Hook James
Ivg Colbachini S.p.A.
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