Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
80 words
A helmet having a rear part and a detachable front part, the rear part comprising a shell shaped to extend at least partially over the top of the wearer's head and to each side of the head, the front part being shaped to accommodate equipment for optical enhancement or protection, the front part being shaped to fit against the rear part to complete the shell of the helmet, and means for detachably connecting the front part to the rear part.
Claim 2
Dependent Claim
80 words
A helmet having a rear part and a detachable front part, the rear part comprising a shell shaped to extend at least partially over the top of the wearer's head and to each side of the head, the front part being shaped to accommodate equipment for optical enhancement or protection, the front part being shaped to fit against the rear part to complete the shell of the helmet, and means for detachably connecting the front part to the rear part.
Claim 3
Dependent Claim
33 words
A helmet as claimed in Claim 1, in which the front part of the helmet is shaped to accommodate the equipment so that the equipment is at least partially enclosed by the helmet.
Claim 4
Dependent Claim
33 words
A helmet as claimed in Claim 1, in which the front and rear parts of the helmet are provided with complementary facing surfaces which engage one another when the parts are connected together.
Claim 5
Dependent Claim
48 words
A helmet as claimed in Claim 1, in which the means for connecting the front and rear parts together includes hinge means connecting the two parts so that the front part can be pivoted upwards from the closed position to enable the helmet to be donned and doffed.
Claim 6
Dependent Claim
39 words
A helmet as claimed in Claim 1, and provided with a single rear part, and two or more interchangable front parts, each accommodating a different piece of optical equipment and each shaped to fit against the common rear part.
Claim 7
Dependent Claim
52 words
A helmet as claimed in Claim 1, in which the optical equipment includes a visor pivoted on the front part of the helmet movable between an operative position and a retracted position in which it is accommodated in a space defined between the front part and the rear part of the helmet.
Claim 8
Dependent Claim
31 words
A helmet as claimed in Claim 1, in which the helmet is an aircrew helmet and the rear part of the helmet contains communication equipment for voice communication with the wearer.