Clampless hose connection

Details Clampless hose connection Clampless hose connection

1990-09-05

1991-10-29

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285423, 285903, 285921, F16L 3500

Patent

active

050609831

ABSTRACT:
A relatively resilient hose end telescoped over a relatively rigid tube end wherein a first axial zone of the tube end has an exterior rib with a circumferentially continuous radially outermost edge and a second axial zone of the tube end proximal to the first axial zone has circumferentially extending beveled exterior retention ribs, the hose end has a third axial zone which contains circumferentially extending beveled interior retention ribs complementary to those of the second axial zone, the exterior retention ribs and the interior retention ribs coact to resist axial separation of the hose end from the tube end with greater resistance than that encountered during telescoping of the hose end over the tube end, the hose end has a fourth axial zone proximal to the third axial zone and a fifth axial zone proximal to the fourth axial zone, the fourth axial zone has a nominal wall thickness less than those of the immediately contiguous portions of the third and fifth axial zones, and the fourth axial zone is stretched over the exterior rib of the first zone such that an axially intermediate portion of the fourth zone has circumferentially continuous sealing contact with the radially outermost edge of the first axial zone's exterior rib and axial portions of the fourth axial zone that axially bound the axially intermediate portion of the fourth axial zone extend radially inwardly away therefrom.

REFERENCES:
patent: 2985469 (1961-05-01), Bowman, Jr.
patent: 3262721 (1926-07-01), Knight
patent: 3603621 (1971-09-01), Parsons
patent: 3948547 (1976-04-01), Gache
patent: 4003591 (1977-01-01), Schuldink
patent: 4099744 (1978-07-01), Kutnyak et al.
patent: 4317471 (1982-03-01), King
patent: 4361349 (1982-11-01), Wolf et al.
patent: 4521038 (1985-06-01), Cerny
patent: 4597594 (1986-07-01), Kacalieff et al.

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