Pipe joints or couplings – Nonmetal to metal – Internal member
Patent
1979-04-19
1982-03-16
Arola, Dave W.
Pipe joints or couplings
Nonmetal to metal
Internal member
285259, F16L 3322
Patent
active
043197744
ABSTRACT:
A substantially tubular shaped insert (1) adapted to fit coaxially about the end of a hose and to be contracted against the hose by the shell of a coupling to provide an improved hose and coupling assembly for the conveyance of fluids under pressure. The insert has a separation space (2) in its wall that extends longitudinally along the entire length thereof and one or more longitudinally extending primary elongate openings (4) through its wall that are disposed in a substantial uniform array about its circumference. The longitudinal axis of space (2) and openings (4) are skewed from 0.degree. to about 45.degree. from the inserts central axis and the areas provided by space (2) and openings (4) are such that, upon contraction of the insert against the hose, portions of the wall of the hose are caused to extend into space (2) and openings (4) to provide an improved circumferentially uniform longitudinally extending engagement between the coupling and the hose.
REFERENCES:
patent: 382468 (1888-05-01), Haley
patent: 589216 (1897-08-01), McKee
patent: 1113770 (1914-10-01), Gabrohn
patent: 2121624 (1938-06-01), Cowles
patent: 2273398 (1942-02-01), Couty et al.
patent: 2449916 (1948-09-01), Tandet
patent: 2560565 (1951-07-01), Freeman
patent: 4099748 (1978-07-01), Kavick
patent: 4150848 (1979-04-01), Dyrup
Arola Dave W.
Chrow A. E.
Eaton Corporation
Grace C. H.
Yakimow J.
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