B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/182
B21D 53/00 (2006.01) B21D 51/24 (2006.01) F15B 1/10 (2006.01) F15B 1/14 (2006.01)
Patent
CA 1140318
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 a generally hemi- spherical portion having an oil port, installing the elastomeric bladder assembly within said cylindrical member while the other end of said member remains in its 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.
351785
Greer Hydraulics Incorporated
Ridout & Maybee Llp
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