Apparatus for projecting devices through tubes and conduits
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United States of America Patent
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-
Feb 27, 1996
Grant Date -
N/A
app pub date -
Jun 8, 1993
filing date -
Oct 31, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for storing a flexible lance whereby the lance may be projected from the apparatus and into and through a tube to be cleaned or surveyed, the apparatus comprising a storage drum with a peripheral helical groove into which a lance is placed in a plurality of wound coils for storage purposes, the lance being projected from the drum by rotating same and at the same time passing the lance through a guide member that is permitted to move axially in response to rotational movement of the drum, the lance being retained in the groove in the storage position by a plurality of axially extending rollers spaced circumferentially around the drum.
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