Cylindrical containers by hour glass formation of metal tubes

Details Cylindrical containers by hour glass formation of metal tubes Cylindrical containers by hour glass formation of metal tubes

1975-11-06

1977-02-15

Larson, Lowell A.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

72302, 72342, 72378, B21D 3100

Patent

active

040076164

ABSTRACT:
A process of manufacture to produce low cost pressure vessels from a length of metal tubing by use of localized heat and/or axial tensile force to shrink the diameter of the tubing at selected locations of a predetermined starting length approximately one diameter long and many diameters apart to permit subsequent separation to form open-ended pressure vessels. Subsequent conventional swaging operations could thicken and reduce the end diameters so they can be threaded.

REFERENCES:
patent: 545022 (1895-08-01), Jackson
patent: 2051949 (1936-08-01), Inscho
patent: 3735463 (1973-05-01), Merola
patent: 3740991 (1973-06-01), Walraven et al.

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