Flow control device
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United States of America Patent
Stats
-
Mar 25, 2003
Grant Date -
N/A
app pub date -
Nov 1, 2001
filing date -
Nov 1, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved flow control device for regulating the flow of liquid or gas through a length of flexible-conduit using a generally enclosed rack and pinion assembly engaged by an external slidable assembly or switch. The case has a lower rack with a surface supporting a length of flexible conduit, opposing walls, and an upper surface. The lower rack has at least one rack track along which a pinion gear assembly may be engaged and rotated. The pinion gear assembly has a cylinder shaft capped on at least one end by a pinion gear with radiating teeth. The pinion gear assembly can be rotated along a portion of the flexible conduit, compressing it at one or more positions. Operation of the flow control device can be accomplished using a single hand, and the case remains enclosed without subjecting the pinion gear assembly to an external environment.
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