Method of manufacturing pressure vessels by heat forming

Details Method of manufacturing pressure vessels by heat forming Method of manufacturing pressure vessels by heat forming

1979-09-24

1981-09-15

Moon, Charlie T.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29422, 29454, 138 30, B21D 5300, B21K 2900, B23P 1526

Patent

active

042888948

ABSTRACT:
The present invention relates to the method of manufacturing a pressure vessel for use as a hydraulic accumulator, pulse dampener or like apparatus employing an elastomeric bladder member, from a cylindrical member which includes the steps of deforming a first end of the member to provide an essentially hemispherical portion having an oil port, installing the elastomeric bladder assembly within said cylindrical member while the other end of said member remains in its essentially cylindrical configuration, and thereafter inwardly deforming the second end of said member while heating the same, said last mentioned heating and deforming steps being carried out while injecting through the last mentioned end a stream of cooling fluid which follows the internal wall portions of the bladder to minimize the possibility of heat damage to the bladder.

REFERENCES:
patent: 2309181 (1943-01-01), Franck
patent: 2405201 (1946-08-01), Franck
patent: 2659128 (1953-11-01), Baldwin, Jr. et al.
patent: 3195576 (1965-07-01), Mercier
patent: 3345725 (1967-10-01), Peters
patent: 4045861 (1977-09-01), Zahid
patent: 4077100 (1978-03-01), Zahid
patent: 4192350 (1980-03-01), Mercier

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