Gap seal for projectile launching device
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United States of America Patent
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Aug 23, 2016
Grant Date -
Mar 3, 2016
app pub date -
Nov 11, 2015
filing date -
Dec 30, 2013
priority date (Note) -
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Abstract
A projectile launching device includes a barrel with a bore through the barrel, and a breach end opposite of a muzzle end. A feed mechanism, with a chamber to hold a projectile, is positioned at the breach end of the barrel. The feed mechanism is moveable between a first position with the chamber and the barrel unaligned, and a second position with the chamber and the barrel aligned. A receiver is positioned on an opposite side of the feed mechanism from the barrel. The receiver includes a gas duct to convey gas into the chamber to fire the projectile. A sleeve is slidingly coupled to the receiver and is adapted to forcibly slide into a position in contact with the feed mechanism, in response to pressure from the gas conveyed through the gas duct, to seal a first gap between the receiver and the feed mechanism.
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