Composite tube fitting

Details Composite tube fitting Composite tube fitting

1992-10-02

1994-07-19

Bradley, P. Austin

Pipe joints or couplings

Connector for conduit housing electromagnetic line:

285423, 138109, F16L 3902, F16C 302

Patent

active

053302362

ABSTRACT:
An end fitting for a composite tube used in high pressure hydraulic systems. The tube includes a composite matrix wrapped around a metal liner. The fitting includes an inner sleeve having a plurality of holes with pins therein extending into the matrix for securing the sleeve to the matrix. An outer sleeve fitting over the inner sleeve retains the pins within the holes, and the inner sleeve prevents the outer sleeve from sliding off the end of the tubing. A forward inner sleeve or ring encloses the end of the matrix and is also surrounded by the outer sleeve. A nut is retained on the outer sleeve for joining to a connector having an end surface which mates with the end of the liner flared against the end ring.

REFERENCES:
patent: 1809313 (1931-06-01), Root
patent: 1853698 (1932-04-01), Parker
patent: 2736578 (1956-02-01), Rafferty
patent: 2970184 (1961-01-01), Blonder
patent: 3109052 (1963-10-01), Dumire et al.
patent: 3120966 (1964-02-01), Lyon
patent: 4185472 (1980-01-01), Yates et al.
patent: 4240652 (1980-12-01), Wong et al.
patent: 4477108 (1984-10-01), Castelbaum et al.
patent: 4854613 (1989-08-01), Reece et al.
Copy of article entitled "Preloaded Composite-Strut/End-Fitting Joint", NASA Tech. Briefs (Jul. 1990).
Copy of article entitled "Composite Member Coupled to Components Without Cutting Fibers", Design News, Jun., 1986.

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