Protective clothing
AssigneeThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
InventorsGraham J. Cooper, Stephen J. Cater, David J. Townend
Life of this patent
Estimating the term…
Abstract
An article of protective clothing designed for protection against blast has first sheet (11) of solid material backed by a second sheet (12) of pneumatic material. The physical properties and dimensions of the two sheet (11, 12) being such that an acoustic decoupling effect is provided which greatly reduces the pressure wave effect on the body of a person wearing the clothing. The first sheet (11) might by of GRP. 9 mm thick with an areal density of 20 kg/square meter and a second sheet (12) of pneumatic material having a nominal thickness of 20 mm. 94% air content and a density of 45 kg cubic meter.
Claims11
An article of protective clothing, comprising:
- an outer sheet formed of solid material having an areal density of 18 to 22 kg/square meter and a thickness of 8 to 10 mm;
- and
- at least one inner sheet contacting said outer sheet and of a pneumatic material having a density of 40-50 kg/cubic meter, an air content of 92-96% and a total thickness of 17 to 23 mm.
Dependencies are inferred from the claim text.