Process for making hollow tubular structural members with integr

Details Process for making hollow tubular structural members with integr Process for making hollow tubular structural members with integr

1991-12-09

1993-06-08

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156198, 156245, 156282, 156294, 264248, 264258, 264263, 264314, 264DIG41, B29C 5320

Patent

active

052175553

ABSTRACT:
The invention is a process for forming a hollow tubular member with an integral attachment end fitting. In detail, the method comprising the steps of: providing a first hollow tubular member made of a composite material; providing a support member adapted to fit within the first tubular member; installing the support member within the first tubular member and joining thereto; providing a second hollow tubular member made of composite material; installing the second tubular member within the end of the first tubular member such that it abuts the support member; providing an inflatable bladder having an inflation tube attached thereto; installing the inflatable bladder within the first tubular member such that it abuts the support member and the inflation tube extends out the end; pressurizing the bladder causing it to expand and apply pressure to the first and second tubular members; heating a portion of both the first and second tubular members to forming temperatures; and forming a portion of first and second tubular members into a solid flat rectangular cross-sectional shaped attachment end fitting.

REFERENCES:
patent: 2715087 (1955-08-01), Barradas
patent: 2997411 (1961-08-01), Woolley
patent: 3962006 (1976-06-01), Saito et al.
patent: 4292368 (1981-09-01), Mialon
patent: 4483731 (1984-11-01), Dohle et al.

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