Flight helmet with headset
First Claim
1. A flight helmet with headset custom fit to the head and ears of a particular individual comprising an outer shell of rigid material shaped to cover the head of the wearer and having a peripheral edge lying along the back of the neck and extending forwardly beneath the ears,an inner layer of resilient elastomeric material,a conformable liner of thermoplastic material formed with a generally hemispherical shape, said liner being heated to a temperature at which it can be shaped and inserted into the shell which is then placed on and forced into conformity with the head of the individual for whom it will fit,adhesive means for securing the liner, the layer and the shell together as a unitary structure,means forming left and right ear apertures in the shell,left and right ear cups selected to fully cover the ears of said individual, said ear cups being placed in said apertures, respectively, and positioned while the helmet is worn by said individual so that the ear cups are in a proper sealing position relative to the individual'"'"'s ear positions,adhesive means for permanently affixing the ear cups to the helmet and liner,an expandable seal surrounding the ear cups so that between the earcup and the head of the wearer a close, noise isolating seal is formed completely around each ear between the head and each earcup.
1 Assignment
0 Petitions
Accused Products
Abstract
A helmet formed of a rigid shell and, internally thereof, a liner sized and shaped to the head of the wearer with ear cups secured to the liner. The ear cups have a peripheral surface positionable in contact with the wearer'"'"'s head. The peripheral surface includes a first annular tube filled with a gel material in contact with the wearer'"'"'s head around the ears and a second annular tube for urging the first annular tube into conforming contact with the wearer'"'"'s head. The second annular tube is inflatable and includes tubing means extending through the shell with valve means for inflation and deflation thereof. Also disclosed is the method of fabricating the shell to fit an individual wearer.
99 Citations
12 Claims
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1. A flight helmet with headset custom fit to the head and ears of a particular individual comprising an outer shell of rigid material shaped to cover the head of the wearer and having a peripheral edge lying along the back of the neck and extending forwardly beneath the ears,
an inner layer of resilient elastomeric material, a conformable liner of thermoplastic material formed with a generally hemispherical shape, said liner being heated to a temperature at which it can be shaped and inserted into the shell which is then placed on and forced into conformity with the head of the individual for whom it will fit, adhesive means for securing the liner, the layer and the shell together as a unitary structure, means forming left and right ear apertures in the shell, left and right ear cups selected to fully cover the ears of said individual, said ear cups being placed in said apertures, respectively, and positioned while the helmet is worn by said individual so that the ear cups are in a proper sealing position relative to the individual'"'"'s ear positions, adhesive means for permanently affixing the ear cups to the helmet and liner, an expandable seal surrounding the ear cups so that between the earcup and the head of the wearer a close, noise isolating seal is formed completely around each ear between the head and each earcup.
Specification