Firearms – Stock or barrel connectors – Method of making
Reexamination Certificate
2005-07-27
2011-12-06
Chambers, Troy (Department: 3641)
Firearms
Stock or barrel connectors
Method of making
Reexamination Certificate
active
08069604
ABSTRACT:
A hand-guard and barrel nut clamping assembly for tactical firearms and other mechanical equipment that is subject to frequent or sustained vibration or shock, such as when a firearm is subjected to sustained rapid fire and/or the firearm is handled roughly. A small generally half-moon shaped anti-rotation clamping member is secured to a hand-guard support element or other suitable structure by socket head cap screws and is secured in frictional contact with components of the hand-guard mount and a barrel nut. The anti-rotation clamping member functions as a key to “tie” the barrel nut and hand-guard nut together, simultaneously preventing either one from rotating, and thus preventing inadvertent vibration or shock induced loosening of either the hand-guard retainer nut or the barrel nut. The anti-rotation clamping member is also keyed onto the front of the upper receiver by a slot into which a portion of the receiver is engaged. Alignment pins in the hand-guard support element also key a barrel nut against inadvertent rotation and further ensure against loosening of the barrel nut by vibration and shock.
REFERENCES:
patent: 2372568 (1945-03-01), Grigg
patent: 3163952 (1965-01-01), Into
patent: 4525094 (1985-06-01), Johnson et al.
patent: 5412895 (1995-05-01), Krieger
patent: 5590484 (1997-01-01), Mooney et al.
patent: 6671990 (2004-01-01), Booth
patent: 6694660 (2004-02-01), Davies
patent: RE39465 (2007-01-01), Swan
patent: 2004/0049964 (2004-03-01), Vais
patent: 2007/0033851 (2007-02-01), Hochstrate et al.
Chambers Troy
Jackson James L.
LandOfFree
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