Ordnance – Barrels – Recoil absorbers and climb arrestors
Patent
1990-08-08
1991-08-06
Bentley, Stephen C.
Ordnance
Barrels
Recoil absorbers and climb arrestors
F41A 2136
Patent
active
050367471
ABSTRACT:
A muzzle recoil brake which enables propellant gases to escape through a sequence of expansion stages along the length of the brake. Each expansion stage includes circumferentially disposed passageways or apertures which permit gases to exit the brake. The expansion stage also includes gas expansion chambers. Interior plates transversely positioned and axially spaced define interior expansion chambers while caps comprising radially extending plates and circumferential skirts define exterior expansion chambers. The gases from the brake impinge the interior surfaces of the expansion chambers to reduce recoil. Gases are conserved in the brake and a metered portion of the gas is vented at each stage in the sequence of stages. The size or position of the vent aperture or expansion chamber with respect to adjacent apertures or chambers, or a combination thereof, permits retention and conservation of the propellant gases. Thus, it is generally necessary that the stages increase in volume towards the muzzle end or that the passageways from the brake increase in size towards the muzzle and, or that both the stages and passageways increase in size.
REFERENCES:
patent: 858745 (1907-07-01), McClean
patent: 1363058 (1920-12-01), Schneider
patent: 2206568 (1940-07-01), Hughes
patent: 2453121 (1948-11-01), Cutts
patent: 2861375 (1958-11-01), Rodick
patent: 4203347 (1980-05-01), Pinson et al.
patent: 4545285 (1985-10-01), McLain
Bentley Stephen C.
Harris Robert E.
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