Grit blast nozzle for surface preparation of tube
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 26, 2002
Grant Date -
N/A
app pub date -
Feb 9, 2000
filing date -
Feb 9, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention resides in a method and apparatus for conditioning an inner surface of a tube. A pressurized mixture of air and grit and is supplied to a nozzle having an opening with a given diameter through which diameter the pressurized grit and air pass. An elongated nozzle adapter is connected to said nozzle. The nozzle adapter has a passage having a diameter substantially equal to the diameter of said nozzle and said nozzle adapter is connected to said nozzle such that the opening in said nozzle and said passage are aligned with one another. The nozzle adapter is inserted into a tube and is axially moved and rotated in order to condition the inner surface thereof with a pressurized mixture of air and grit.
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