Pipes and tubular conduits – Flexible – Distinct layers
Reexamination Certificate
2006-06-13
2006-06-13
Brinson, Patrick (Department: 3754)
Pipes and tubular conduits
Flexible
Distinct layers
C138S140000, C138S146000
Reexamination Certificate
active
07059355
ABSTRACT:
The water pipe includes a pipe body which is used as a water pipe, supply-pipe, drainage pipe, including a mixed layer, provided at an inner surface of the pipe body, the mixed layer including a mortar layer and a resin layer and being mixed into a mixture which includes powder of tourmaline ore, granite and charcoal grain powder with effects for far-infrared ray and anion. Therefore, it can improve water quality efficiently and prevent degradation of a pipe, and it can be used in the large flow velocity region without pressure loss of the water pipe line.
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Kikuchi Hideyuki
Otani Tomio
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