Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Direct application of fluid pressure
Reexamination Certificate
2005-05-31
2005-05-31
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Direct application of fluid pressure
C264S495000, C264S031000, C264S033000, C264S516000, C264S564000, C264S568000, C264S137000, C405S138000, C405S155000, C405S156000, C405S174000, C405S177000, C405S179000, C405S184500, C425S062000, C425S102000, C425S174600, C425S503000, C425S504000
Reexamination Certificate
active
06899842
ABSTRACT:
A process and plant for laying a pipe in a trench comprising placing a flattened tubular preform in the trench, the perform having a reinforcement surrounding an inner seal, the reinforcement being impregnated with a resin, and inflating the perform in the trench.
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Corre Pierre-Yves
Leighton James
Saltel Jean-Louis
Colaianni Michael P.
Nava Robin
Poe Michael I.
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