Hose

Details Hose Hose

1993-09-17

1995-06-13

Scherbel, David A.

Pipes and tubular conduits

Combined

With end structure

138119, 138113, F16L 3902

Patent

active

054233534

ABSTRACT:
A collapsible, self-priming hose has a flexible inner tube extending along the interior of the outer tube, which has a diameter sufficiently greater than that of the inner tube to provide an intermediate space between the inner and outer tubes upon inflation of the outer tube. Retainer members extending between and connected to the inner and outer tubes expand the inner tube from a collapsed condition upon inflation of the outer tube and are flexible to allow the hose to collapse on deflation of the inner and outer tubes.

REFERENCES:
patent: 3464450 (1969-09-01), Steffenini
patent: 3665967 (1972-05-01), Kachnik
patent: 4014369 (1977-03-01), Kobres, Jr.
patent: 4341392 (1982-07-01), van Dongeren
patent: 4906496 (1990-03-01), Hosono et al.
patent: 4922971 (1990-05-01), Grantham
patent: 4930544 (1990-06-01), Ziu
patent: 5156191 (1992-10-01), Walker et al.
patent: 5186502 (1993-02-01), Martin
patent: 5203378 (1993-03-01), Williams

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