Protective Helmet
1 Assignment
0 Petitions
Accused Products
Abstract
A firefighter'"'"'s helmet comprising an inner protective shell configured to be worn on its own as a helmet and an outer protective shell configured to be fitted over the inner shell and realizably retained thereon, a retaining mechanism for retaining the inner shell in the outer shell, wherein the retaining mechanism is moveable by a user whilst wearing the inner shell between a first position in which the retaining mechanism engages a said shell substantially to prevent relative movement between the two shells, and a second position in which the retaining mechanism permits relative movement of the shells whereby allowing the donning or doffing of the outer shell by the user.
36 Citations
34 Claims
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1-15. -15. (canceled)
- 16. A firefighter'"'"'s helmet comprising an inner protective shell having an outer layer of impact-resisting plastics and an inner-impact-resisting layer, the inner shell being wearable on its own when the user is attending an incident other than a structural fire, and an outer shell adapted to fit over the inner shell and to be retained thereon, the outer shell being more extensive that the inner shell so as to protect the user against structural firefighting risks, and being configured to be fitted to and removed from the inner shell by the user whilst wearing the inner shell.
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17. A firefighter'"'"'s helmet comprising an inner protective shell configured to be worn on its own as a helmet and an outer protective shell configured to be fitted over the inner shell and releasably retained thereon, comprising retaining mechanism for retaining the inner shell in the outer shell, wherein the retaining mechanism is moveable by a user whilst wearing the inner shell between a first position in which the retaining mechanism engages a said shell substantially to prevent relative movement between the two shells;
- and a second position in which the retaining mechanism permits relative movement of the shells whereby allowing the donning or doffing of the outer shell by the user.
- View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
- 33. A method of protecting a firefighter comprising providing the firefighter with a helmet comprising an inner protective shell wearable on its own and an outer protective shell adapted to fit over and to be retained on the inner shell and causing the firefighter to wear the inner shell or both shells depending on the nature of the risk presented by the incident which the firefighter is attending.
Specification