Ordnance – Barrels – Silencers
Reexamination Certificate
2011-01-25
2011-01-25
Hayes, Bret (Department: 3641)
Ordnance
Barrels
Silencers
C089S014200, C089S014300, C089S198000, C042S001060, C042S079000, C181S223000
Reexamination Certificate
active
07874238
ABSTRACT:
The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis defining a passage for a projectile and propellant gases to emerge from the muzzle opening. A plurality of serially placed baffles of symmetrical or slanted orientation and intervening coaxial spacers are positioned within the casing and define a multitude of chambers among the baffles, spacers, and outer housing. The baffles shear propellant gases away from the projectile path and through openings or ports into additional chambers formed between the spacers and outer housing. The arrangement of baffles and spacers provides flow-impeding paths, dispersion, and controlled expansion of gases and lowers gas temperature to reduce audible noise and observable signature of the muzzle blast.
REFERENCES:
patent: 4291610 (1981-09-01), Waiser
patent: 4530417 (1985-07-01), Daniel
patent: 4584924 (1986-04-01), Taguchi
patent: 4588043 (1986-05-01), Finn
patent: 4907488 (1990-03-01), Seberger
patent: 4974489 (1990-12-01), Fishbaugh
patent: 5029512 (1991-07-01), Latka
patent: 5092223 (1992-03-01), Hudson
patent: 5164535 (1992-11-01), Leasure
patent: 5476026 (1995-12-01), McFarlin
patent: 5476028 (1995-12-01), Seberger
patent: D415812 (1999-10-01), Andrews, Jr. et al.
patent: 6308609 (2001-10-01), Davies
patent: 6374718 (2002-04-01), Rescigno et al.
patent: 6575074 (2003-06-01), Gaddini
patent: 7073426 (2006-07-01), White
patent: 7325474 (2008-02-01), Yoshimura et al.
patent: 2007/0107590 (2007-05-01), Silvers
patent: 2 229 071 (1973-11-01), None
Paulson et al.: “Silencer History And Performances”, vol. 2 COB, Assault Rifles and Sniper Technology (2002), p. 350, Table 7.3.
Paulson: “Special Weapons” (Aul:) 2004), DD. 68-75.
Advanced Armament Corp., LLC
David Michael D
Hayes Bret
Merchant & Gould P.C.
LandOfFree
Asymmetric firearm silencer with coaxial elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Asymmetric firearm silencer with coaxial elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric firearm silencer with coaxial elements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2647264