Deep drawn and ironed pressure vessel having selectively control

Details Deep drawn and ironed pressure vessel having selectively control Deep drawn and ironed pressure vessel having selectively control

1979-06-07

1982-03-23

Gilden, Leon

Receptacles

Outlet or junction box type

Sectional receptacle

72349, 220 3, 220DIG22, B65D 742

Patent

active

043208487

ABSTRACT:
An improved deep drawn and ironed metal shell for use as a pressure vessel having selectively controlled wall thicknesses to impart additional strength to predetermined portions of the improved metal shell. A stepped mandrel is utilized in conjunction with at least one ironing die to fabricate the improved metal shell.

REFERENCES:
patent: 1931210 (1933-10-01), Steinacher
patent: 3738528 (1973-06-01), Kagami
patent: 4185749 (1980-01-01), Vartia

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