Sheathed tubular stick

Details Sheathed tubular stick Sheathed tubular stick

1975-06-12

1977-03-22

Aegerter, Richard E.

Pipes and tubular conduits

Combined

With end structure

1381181, 426106, 426135, 138121, 285 45, 285114, F16L 1100

Patent

active

040130991

ABSTRACT:
This invention relates to an improvement in a sheathed, hollow, cylindrical stick composed of a flexible tube folded by longitudinal shirring, the improvement comprising a cylindrical, flexible jacket means enveloping said stick and projecting over the ends thereof, parts of the projecting portions touching the end walls of said stick with their inner sides, annular disc means on said projecting portions, and said projecting portions being inverted outwardly around said disc means in a manner such that the inner walls, the end surfaces and the outer walls of said disc means are tightly covered, and said inverted portions being parallel to said jacket means and close to the exterior thereof. The invention also includes an embodiment wherein annular disc means are inserted inside the jacket means and adjacent to the end walls of the stick, the projecting portions of the jacket means are inverted around the annular disc means and clamping means are inserted in the opening of the annular disc means. The invention also includes processes for the production of the sheathed hollow cylindrical stick.

REFERENCES:
patent: 2150471 (1939-03-01), Vulpen
patent: 2871508 (1959-02-01), Hill
patent: 3639130 (1972-02-01), Eichin et al.
patent: 3864494 (1975-02-01), Kupcikevicius et al.

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