Crimp sealing of tubes flush with or below a fixed surface
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.
- Inventors:
-
- Concord, CA
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 870565
- Patent Number(s):
- 5546783
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- crimp; sealing; tubes; flush; below; fixed; surface; apparatus; severing; tube; crimping; requires; asymmetric; die; anvil; configuration; flat; removed; deforming; crimped; ductile; metal; valve; assembly; attached; pressure; vessel; base; placed; guides; opposite; pinch-off; inserted; adequate; clearance; inserting; pressure vessel; valve assembly; metal tube; fixed surface; tubes flush; asymmetric die; ductile metal; crimp sealing; /72/29/137/220/
Citation Formats
Fischer, Jon E, Walmsley, Don, and Wapman, P Derek. Crimp sealing of tubes flush with or below a fixed surface. United States: N. p., 1996.
Web.
Fischer, Jon E, Walmsley, Don, & Wapman, P Derek. Crimp sealing of tubes flush with or below a fixed surface. United States.
Fischer, Jon E, Walmsley, Don, and Wapman, P Derek. Mon .
"Crimp sealing of tubes flush with or below a fixed surface". United States. https://www.osti.gov/servlets/purl/870565.
@article{osti_870565,
title = {Crimp sealing of tubes flush with or below a fixed surface},
author = {Fischer, Jon E and Walmsley, Don and Wapman, P Derek},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}