Method of manufacturing a pressurized fluid coupling

Details Method of manufacturing a pressurized fluid coupling Method of manufacturing a pressurized fluid coupling

1987-11-05

1989-05-16

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Assembling or joining

29517, 29521, B21D 3900

Patent

active

048296546

ABSTRACT:
A pressurized fluid coupling and a method of manufacturing the pressurized fluid coupling are disclosed. The pressurized fluid coupling includes a metal tube having circumferentially extending beads formed therein for receiving a free end of a flexible tube thereon. The method of manufacturing the pressurized fluid coupling includes selectively hardening alternating wall portions of the metal tube by roll grooving spaced apart circumferentially extending grooves therein. After roll grooving the grooves into the tube, the tube is clamped in a clamping mechanism, and the end of the tube is subjected to an advancing punch mechanism which causes circumferentially extending bulges to form in the tube between the spaced apart grooves. The circumferentially beads add strength to the end of the tube for allowing a flexible hose to be compressedly secured thereto without collapsing the tube.

REFERENCES:
patent: 4006524 (1977-02-01), Frank
patent: 4232712 (1980-11-01), Squires
patent: 4548430 (1985-10-01), Haubert et al.

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