Flexible conduit, particularly for sanitary purposes

Details Flexible conduit, particularly for sanitary purposes Flexible conduit, particularly for sanitary purposes

2005-12-06

2005-12-06

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

Combined

With end structure

C138S121000, C138S122000, C285S903000, C285S256000, C285S242000

Reexamination Certificate

active

06971414

ABSTRACT:
A flexible conduit includes a metal hose provided with a helical groove having a plurality of turns; a plastic jacket surrounding the metal hose and conforming to the helical groove thereof; a plastic inner hose received in the metal hose and having a projecting length portion extending beyond an end of the metal hose. The conduit further includes a plastic coupling part which surrounds the metal hose. The coupling part includes a cylindrical collar surrounding the projecting length portion and having a material-to-material bond therewith; and an overlapping portion adjoining the cylindrical collar and extending away therefrom. The overlapping portion surrounds the jacket and extends into the helical groove. The overlapping portion and the plastic jacket have a material-to-material bond with one another.

REFERENCES:
patent: 817060 (1906-04-01), Greenfield
patent: 3257132 (1966-06-01), Lyons
patent: 3420553 (1969-01-01), Poxon et al.
patent: 4063757 (1977-12-01), Fuhrmann
patent: 4369992 (1983-01-01), Fournier et al.
patent: 4400022 (1983-08-01), Wright
patent: 4415389 (1983-11-01), Medford et al.
patent: 5209267 (1993-05-01), Morin
patent: 5297586 (1994-03-01), McIntosh
patent: 29807448 (1998-10-01), None
patent: 2065823 (1981-07-01), None

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