Gastight connection between tubes of small diameter

Details Gastight connection between tubes of small diameter Gastight connection between tubes of small diameter

1992-05-19

1994-08-16

Arola, Dave W.

Pipe joints or couplings

Molded joint

Interlocked

285331, 285332, 228198, F16L 1302

Patent

active

053380720

ABSTRACT:
The invention relates to a gastight connection between tubes of small diameter of metals or metal alloys having different melting points, more particularly copper and aluminium, wherein the end zone of the first tube (1) is opened out and the second tube (2) of a lower-melting material is inserted and soldered into the opened-out portion (3), the internal generated surface of the opened-out portion (3) merging via an internal cone (4) and extension (38) into that zone of the first tube (1) which is not opened out, a sleeve (34) of special steel possibly being inserted in the end zone of the second tube (2).

REFERENCES:
patent: 334925 (1867-08-01), Jayne
patent: 396013 (1889-01-01), Thomson
patent: 1810091 (1931-06-01), Siegle
patent: 2760346 (1956-08-01), Grenell
patent: 2977675 (1961-04-01), Simms
patent: 2987329 (1991-06-01), Barton
patent: 3535767 (1970-10-01), Doherty et al.
patent: 3830262 (1974-08-01), Lago
patent: 4002359 (1977-01-01), Lari
patent: 4039453 (1978-05-01), Jenkins
patent: 4331286 (1982-05-01), Miyazaki et al.
patent: 4943000 (1990-07-01), Raynaud et al.

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