Coating apparatus – Projection or spray type – Inside of hollow work
Reexamination Certificate
2010-03-12
2011-10-11
Yuan, Dah-Wei (Department: 1717)
Coating apparatus
Projection or spray type
Inside of hollow work
C118SDIG010, C118SDIG013, C134S022120, C451S076000
Reexamination Certificate
active
08033242
ABSTRACT:
Methods and systems for cleaning, coating and sealing leaks in existing pipes, in a single operation. A piping system can be cleaned in one pass by dry particulates forced and pulled by air throughout the piping system by a generator and a vacuum. Pipes can be protected from water corrosion, erosion and electrolysis, extending the life of pipes such as copper, steel, lead, brass, cast iron piping and composite materials. Coatings can be applied to pipes having diameters up to approximately 6″. Leak sealants of at least approximately 4 mils thick can cover insides of pipes, and can include novel mixtures of fillers and epoxy materials, and viscosity levels. A positive pressure can be maintained within the pipes during applications. Piping systems can be returned to service within approximately 96 hours.
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Gillanders Larry
Laborde John
Williams Steve
Kitt Stephen
Law Offices of Brian S. Steinberger , P.A.
Pipe Restoration Technologies, LLC
Steinberger Brian S.
Yuan Dah-Wei
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