Tube coupling

Details Tube coupling Tube coupling

1976-11-12

1978-04-11

Arola, Dave W.

Pipe joints or couplings

Both members pliable and nonmetal

24131C, 279 76, 279 96, 285318, 285348, 285403, 285423, F16L 3100

Patent

active

040835855

ABSTRACT:
A releasable tube coupling wherein the tube is releasably retained in the coupling body by means of a coil spring which embraces the outer cylindrical surface of the tube. In the relaxed condition, the spring has an inner diameter less than and frictionally engages the outer diameter of the tube. When an axial outward force is applied to the tube the spring tends to contract as it elongates and more firmly grips the tube. The spring is axially compressible to insert the tube in the fitting body and to release it therefrom.

REFERENCES:
patent: 1982732 (1934-12-01), Fletcher
patent: 2032196 (1936-02-01), Blake
patent: 2711331 (1955-06-01), Temple
patent: 3856336 (1974-12-01), Karcher

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