Patent ID: 7390190

Claim:
A combination of a detonation flame arrestor with a reflection suppressor comprising in combination: (a) a housing having opposite housing ends defining respective orifices, a mid-region having opposite mid-region ends defined by respective apertured wall members, a matrix of elements disposed in said mid-region and defining through channels, a pair of opposite end regions located between different ones of said housing ends and said matrix elements; (b) a reflection suppressor having at least one side wall portion tat extends between a base portion and an apex portion thereof, a length that is shorter than the distance between one said apertured wall member and said matrix of elements, a cross-sectional area along said length between said base portion and said apex portion that generally declines with increasing distance from said base portion, and said base portion having a cross-sectional area that is less than the cross sectional area of said one apertured wall member; (c) a mount for mounting the base portion of said reflection suppressor adjacent to one of said housing ends; whereby an advancing flame front with an associated pressure wave can enter the opposed one of said orifices, the flame of said flame front can be suppressed in said mid-region, said pressure wave can pass through said mid-region, past said reflection suppressor and through said one orifice, so that a reflection wave that propagates back to said one orifice strikes said reflection suppressor and is attenuated thereby.