Composite metal nipple

Details Composite metal nipple Composite metal nipple

1981-02-09

1983-11-15

Arola, Dave W.

Pipe joints or couplings

Elbow

285287, F16L 5500

Patent

active

044151870

ABSTRACT:
A tubular metal nipple for joining with the end of a copper tube by means of solder to readily produce a reliable joint in refrigeration plumbing system. The nipple has a inner copper sleeve concentrically spaced from the inside wall of a steel outer casing with an impervious intervening layer of brazing material filling the space and bonding the sleeve to the outer casing. The distal end of the sleeve is tapered or flared outwardly to produce an annular solder well when a tube end is inserted into the nipple.

REFERENCES:
patent: 2295623 (1942-09-01), Armstrong
patent: 3633266 (1972-01-01), Taylor
patent: 3704901 (1972-12-01), Borner
patent: 3750248 (1973-08-01), Morris
patent: 3830262 (1974-08-01), Lago
patent: 3858911 (1975-01-01), Martin

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