US 11,754,376 B2
Overpressure protection system for a magazine
Gareth David Ayre, Washington Tyne and Wear (GB)
Assigned to RHEINMETALL BAE SYSTEMS LAND LIMITED, Shropshire (GB)
Appl. No. 17/621,318
Filed by RHEINMETALL BAE SYSTEMS LAND LIMITED, Shropshire (GB)
PCT Filed Jun. 18, 2020, PCT No. PCT/GB2020/051469
§ 371(c)(1), (2) Date Dec. 21, 2021,
PCT Pub. No. WO2020/260860, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 1909094 (GB), filed on Jun. 25, 2019.
Prior Publication US 2022/0357133 A1, Nov. 10, 2022
Int. Cl. F41H 5/20 (2006.01); F41H 7/03 (2006.01); F41H 7/04 (2006.01); F42B 39/20 (2006.01)
CPC F41H 5/20 (2013.01) [F41H 7/03 (2013.01); F41H 7/048 (2013.01); F42B 39/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An overpressure protection system for a magazine for storing explosive materials, the magazine comprising a wall which defines an internal chamber for housing the explosive materials, with an aperture defined in the wall, the overpressure protection system comprising:
a burst disc diaphragm for covering the aperture;
a protective cover for locating outside of the chamber and over the burst disc diaphragm, the protective cover being spaced apart from the burst disc diaphragm to form a cavity with an opening for venting fluid from the cavity; and
a mount for fixing the protective cover relative to the wall of the magazine, the mount configured to space the protective cover apart from the burst disc diaphragm, wherein the protective cover is provided as a panel fixed to the mount, the mount comprising a frangible fixture configured to rupture to allow the protective cover to open.