Pressurized gas propelled line launching device
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United States of America Patent
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Apr 28, 2015
Grant Date -
N/A
app pub date -
Dec 11, 2013
filing date -
Dec 11, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A line launching device is provided with a tube for receiving a projectile and including an externally threaded bottom and a cap put on the tube; a cylinder including a first externally threaded extension at one end, an internally threaded cup secured to the first externally threaded extension, a second externally threaded extension at an other end, and an internally threaded ring securing to both the second externally threaded extension and the externally threaded bottom; a hollow anchor fastened in one end of the tube; a hollow fin assembly in a bottom of the projectile and including slits on a housing, pivotal fins, and an internal biasing member biasing against the fins; and a rope having one end attached to the nose and an other end fastened in the anchor. The fins project out of the slits after the projectile being propelled out of the tube by pressurized gas.
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