Apparatus for internally coating a metal tube
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 22, 2002
Issued Date -
N/A
app pub date -
Sep 12, 2000
filing date -
Aug 20, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for coating the inside of a metal tube with an electrically conducting material, including first and second electrode assemblies supported within the tube. The axially spaced electrode assemblies each include a main electrode. The main electrode of the first electrode assembly is supported on the inner tube face via an insulating member. The second electrode assembly has an auxiliary electrode connected to the main electrode of the second electrode assembly and to the tube. A wire is secured to and extending between the main electrodes. A current source is connected to the main electrode of the first electrode assembly and the main electrode of the second electrode assembly through the tube and the auxiliary electrode for passing an electric current pulse through the wire for causing an explosive vaporization thereof, whereby particles of the vaporized material form a layer on the inner tube face.
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Patent Citation Ranking
- 2 Citation Count
- C23C Class
- 2.53 % this patent is cited more than
- 23 Age