Pipes and tubular conduits – Flexible – Spirally wound material
Reexamination Certificate
2006-03-29
2010-06-29
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
Flexible
Spirally wound material
C138S130000, C138S133000, C138S174000, C138S172000
Reexamination Certificate
active
07743793
ABSTRACT:
The present invention provides a hose for transporting material from one destination to another and a method of constructing a hose. According to an exemplary embodiment, the hose may be constructed with two helical coils wound in opposing directions and multiple layers. The hose construction may provide a flexible hose with walls that resist kinking and rupture.
REFERENCES:
patent: 475384 (1892-05-01), Cockburn
patent: 3230979 (1966-01-01), Tenreiro
patent: 4518018 (1985-05-01), Kutnyak et al.
patent: 6053213 (2000-04-01), Jung et al.
patent: 6298884 (2001-10-01), Neto et al.
Bedard Mario
Lord Hubert
Bourque and Associates PA
Brinson Patrick F
Novaflex Hose Ltd
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