F - Mech Eng,Light,Heat,Weapons – 41 – J
Patent
F - Mech Eng,Light,Heat,Weapons
41
J
F41J 13/02 (2009.01) F41J 1/14 (2006.01)
Patent
CA 2098193
2098193 9210717 PCTABS00013 A bullet trap for a horizontally fired projectile (B) includes a passageway (13) bounded by upper and lower flat plates (13a, 13b), which may be inclined to the horizontal at an angle (.alpha., .beta.) of between 0· and 15· and define an entrance opening (13c) and a shallow exit opening or throat (13d), and a horizontal generally spiral-walled spent projectile energy-dissipating chamber (15) which communicates substantially tangentially with the passageway through the throat. The circumferential chamber boundary wall (25) has an initial part (25a) which is an upwardly curving extension of the lower plate (13b) and a terminal part (25c) which is located at the rear end of the upper plate (13a). The low angles of inclination of the passageway boundary plates (13a, 13b) ensure that the projectile is gently deflected from its original path of flight and enters the chamber without being shattered by or damaging the circumferential boundary wall of the chamber. A liquid lubricant (27) may be sprayed against the initial part of the chamber wall to engulf and flush lead dust, if any is generated, and other solids into the passageway and thence into a collecting vessel (17), and may be recirculated to the spray head (26) in the chamber.
Passive Bullet Traps Limited
R. William Wray & Associates
LandOfFree
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