Turbodrill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 9, 1984
Grant Date -
N/A
app pub date -
Sep 10, 1981
filing date -
Sep 10, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A turbodrill comprising turbine sections, a spindle and a pipe assembly. According to the invention, the pipe assembly is formed by two coaxially arranged pipes provided between the spindle and the adjacent turbine section and coupled to components of the turbodrill.
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