Pipes and tubular conduits – Flexible – Spirally wound material
Reexamination Certificate
2007-05-15
2007-05-15
Brinson, Patrick F. (Department: 3754)
Pipes and tubular conduits
Flexible
Spirally wound material
C138S132000, C138S121000, C138S122000, C138S174000
Reexamination Certificate
active
11022307
ABSTRACT:
A tubing includes an inner liner composed of one or more fluoropolymers, the inner liner being corrugated to define a trough, and having a wire disposed in said trough. The tubing further includes an outer layer, permanently secured to an exterior of the inner liner and covering said wire.
REFERENCES:
patent: 1052106 (1913-02-01), Voorhees
patent: 2713381 (1955-07-01), Seck
patent: 2830622 (1958-04-01), Roberts et al.
patent: 3076737 (1963-02-01), Roberts
patent: 4196031 (1980-04-01), Lalikos et al.
patent: 4342612 (1982-08-01), Lalikos et al.
patent: 4998564 (1991-03-01), Igarashi et al.
patent: 6563045 (2003-05-01), Goett et al.
patent: 6656552 (2003-12-01), Crouse
Roberts Scott M.
Wisdom Jack L.
Brinson Patrick F.
Crane Resistoflex
Fitzpatrick ,Cella, Harper & Scinto
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