Apparatus for securing a flange ferrule to the end of a flexible

Details Apparatus for securing a flange ferrule to the end of a flexible Apparatus for securing a flange ferrule to the end of a flexible

1976-07-02

1978-04-11

Arola, Dave W.

Pipe joints or couplings

Nonmetal to metal

Internal member

285331, F16L 3320

Patent

active

040835847

ABSTRACT:
A method of securing a flange ferrule to the end of a flexible tube having an exterior diameter slightly smaller than the interior diameter of the ferrule, comprises positioning the flange ferrule over the end of the flexible tube and aligning the flange at the end of the ferrule with the end of the tube, placing a flange clamp bushing which has an outer diameter smaller than the inside diameter of the tube into the tube and aligning a flange of the clamp bushing with the flange of the ferrule and, thereafter, expanding the clamp bushing outwardly into engagement with the wall of the tube. Before the outward expansion of the clamp bushing is effected, the clamp bushing and the ferrule are positioned in a matrix which has a receiving cavity with an outline conforming to the flange ferrule and the tube end and the clamp bushing. After the assembly is held in the matrix, a flaring tool or expander is inserted into the bore of the clamp bushing in order to expand the clamp bushing outwardly into the wall of the tube. A flexible tube fitment, comprises the flange ferrule and the flange clamping bushing which has its flange interengaged over the flange of the ferrule and which is forced into engagement with the wall of the tube. Advantageously, an elastically deformable material or bonding material is inserted between the end of the tube and the flange of the clamp bushing. The clamp bushing may be of a length equal to, less than, or greater than, the outside flange ferrule.

REFERENCES:
patent: 1839338 (1932-01-01), Pentz
patent: 1928836 (1933-10-01), Loughead
patent: 1953665 (1934-04-01), Wallace
patent: 1969203 (1934-08-01), Cadden et al.
patent: 2918314 (1959-12-01), Kemnitz

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