Tube joint for use with multi-walled tube assembly

Details Tube joint for use with multi-walled tube assembly Tube joint for use with multi-walled tube assembly

1987-11-17

1990-01-02

Reese, Randolph A.

Pipe joints or couplings

For branched path

T-type

285 39, F16L 3900

Patent

active

048908657

ABSTRACT:
A tube joint for connecting a multi-walled tube assembly, typically a double-walled tube assembly, including a plurality of tubes defining a plurality of fluid passages to an object includes a joint body having a hole for inserting the tube assembly therein and as many passages as the number of the fluid passages. A tube connector mechanism is provided for engaging the tube assembly. A coupling has a rod for being fitted into the tube assembly and a passage for communicating the tube assembly with one of the passages of the joint body. The rod has on a distal end thereof a substantially spherical projection projecting radially outwardly for being fitted in an inner surface of the tube assembly to connect the tube assembly to the coupling. The inner surface of the tube assembly and the rod are slidable with respect to each other to prevent damage to the tube assembly when it is connected to and disconnected from the tube joint.

REFERENCES:
patent: 263266 (1882-08-01), Walsh
patent: 2433602 (1947-12-01), Coss
patent: 2983506 (1961-05-01), Bertsch et al.
patent: 3449000 (1969-06-01), Kane
patent: 3765728 (1973-10-01), Peruglia
patent: 3837687 (1974-09-01), Leonard
patent: 3980112 (1976-09-01), Basham
patent: 4021062 (1977-05-01), Mariaulle
patent: 4240651 (1980-12-01), Mariaulle
patent: 4669757 (1987-06-01), Bartholomew
patent: 4696496 (1987-09-01), de Guelis et al.
patent: 4722558 (1988-02-01), Badoureaux
patent: 4796924 (1989-01-01), Kosugi et al.

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