Coupling for plastic tube

Details Coupling for plastic tube Coupling for plastic tube

1988-05-20

1989-07-18

Kundrat, Andrew V.

Joints and connections

Interfitted members

Clamped members

403341, 403290, 241223, F16B 214

Patent

active

048489573

ABSTRACT:
A coupling comprising a tube made of plastic composite material to be used as a structural member and having an end portion formed with a plurality of acute cutouts, a fitting having a small-diameter front end portion and a bell-shaped tapering rear portion, and a bell-shaped sleeve having an inner wall surface of a shape corresponding to that of the tapering portion of the fitting. The end portion of the plastic tube is held between the fitting inserted into the end portion and the sleeve mounted on the outer periphery of the taper fitting, and a nut threadedly engaged with external threads of the fitting is tightened to assemble the fitting, the plastic tube and the sleeve as a unit.

REFERENCES:
patent: 990599 (1911-04-01), Sandell
patent: 3725981 (1973-04-01), Pinckney
patent: 4127344 (1978-11-01), Kwiatkowski
patent: 4373832 (1983-02-01), Monteillet

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