Metal deforming – With cutting – By composite tool
Patent
1994-05-31
1996-08-20
Crane, Daniel C.
Metal deforming
With cutting
By composite tool
72412, 137 15, 2989014, 220362, B21D 2800
Patent
active
055467830
ABSTRACT:
An apparatus for crimp sealing and severing tubes flush or below a fixed surface. Tube crimping below a fixed surface requires an asymmetric die and anvil configuration. The anvil must be flat so that, after crimping, it may be removed without deforming the crimped tubes. This asymmetric die and anvil is used when a ductile metal tube and valve assembly are attached to a pressure vessel which has a fixed surface around the base of the tube at the pressure vessel. A flat anvil is placed against the tube. Die guides are placed against the tube on a side opposite the anvil. A pinch-off die is inserted into the die guides against the tube. Adequate clearance for inserting the die and anvil around the tube is needed below the fixed surface. The anvil must be flat so that, after crimping, it may be removed without deforming the crimped tubes.
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J. E. Fischer, "Crimp Sealing Of Tubes Flush Or Below A Fixed Surface".
Fischer Jon E.
Walmsley Don
Wapman P. Derek
Crane Daniel C.
Daubenspeck William C.
Moser William R.
The United States of America as represented by the United States
Wooldridge John P.
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