Protective helmet with liner assembly
First Claim
1. A protective helmet comprising:
- an outer shell;
a liner assembly received in the outer shell and connected to the outer shell, the liner assembly defining a front portion configured to overlay a front of a head of a wearer, a rear portion configured to overlay a rear of the head of the wearer, a top portion configured to overlay a top of the head of the wearer, and two opposed side portions each configured to overlay a respective side of the head of the wearer;
wherein each of the front, rear, side and top portions includes one or more zones where the liner assembly includes a plurality of overlapping layers, each of the layers being made from one of first, second, third and fourth materials, where the first material has a greater density than that of the second, the third and the fourth materials, the second material has a greater density than that of the third and the fourth materials, and the third material has a greater density than that of the fourth material, and;
the one or more zones of the front portion includes one or more of zones F1, F2 and F3, whereinthe zone F1 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, a layer of the third material of at least 4.8 mm thickness, a layer of the second material of at least 8 mm thickness, and a layer of the third material of at least 6.4 mm thickness,the zone F2 includes a layer of the second material of at least 8 millimeters (mm) thickness, a layer of the third material of at least 16 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, andthe zone F3 includes a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness;
the one or more zones of the rear portion includes one or more of zones R1 and R2, whereinthe zone R1 includes a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the second material of at least 12.8 mm thickness, and a layer of the fourth material of at least 3.2 mm thickness, andthe zone R2 includes a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the third material of at least 9.6 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness;
the one or more zones of the side portions includes at one or more of zones S1 and S2, whereinthe zone S1 includes a layer of the second material of at least 4.8 millimeters (mm) thickness, a layer of the first material of at least 3.2 mm thickness, a layer of the third material of at least 8 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, andthe zone S2 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness; and
the one or more zones of the top portion includes one or more of zones T1 and T2, whereinthe zone T1 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness, andthe zone T2 includes a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness.
4 Assignments
0 Petitions
Accused Products
Abstract
A protective helmet having a liner assembly received in an outer shell and connected to the outer shell, with front, rear, side and top portions each including at least one zone where the liner assembly includes a plurality of overlapping layers, each of the layers being made from one of first, second, third and fourth materials, where the first material has a greater density and/or hardness than that of the second, third and fourth materials, the second material has a greater density and/or hardness than that of the third and fourth materials, and the third material has a greater density and/or hardness than that of the fourth material, and wherein the liner assembly includes one or more particular zones set forth in Table 3 or 4.
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Citations
13 Claims
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1. A protective helmet comprising:
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an outer shell; a liner assembly received in the outer shell and connected to the outer shell, the liner assembly defining a front portion configured to overlay a front of a head of a wearer, a rear portion configured to overlay a rear of the head of the wearer, a top portion configured to overlay a top of the head of the wearer, and two opposed side portions each configured to overlay a respective side of the head of the wearer; wherein each of the front, rear, side and top portions includes one or more zones where the liner assembly includes a plurality of overlapping layers, each of the layers being made from one of first, second, third and fourth materials, where the first material has a greater density than that of the second, the third and the fourth materials, the second material has a greater density than that of the third and the fourth materials, and the third material has a greater density than that of the fourth material, and; the one or more zones of the front portion includes one or more of zones F1, F2 and F3, wherein the zone F1 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, a layer of the third material of at least 4.8 mm thickness, a layer of the second material of at least 8 mm thickness, and a layer of the third material of at least 6.4 mm thickness, the zone F2 includes a layer of the second material of at least 8 millimeters (mm) thickness, a layer of the third material of at least 16 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, and the zone F3 includes a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness; the one or more zones of the rear portion includes one or more of zones R1 and R2, wherein the zone R1 includes a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the second material of at least 12.8 mm thickness, and a layer of the fourth material of at least 3.2 mm thickness, and the zone R2 includes a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the third material of at least 9.6 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness; the one or more zones of the side portions includes at one or more of zones S1 and S2, wherein the zone S1 includes a layer of the second material of at least 4.8 millimeters (mm) thickness, a layer of the first material of at least 3.2 mm thickness, a layer of the third material of at least 8 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, and the zone S2 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness; and the one or more zones of the top portion includes one or more of zones T1 and T2, wherein the zone T1 includes a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness, and the zone T2 includes a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A protective helmet comprising:
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an outer shell; a liner assembly received in the outer shell and connected to the outer shell, the liner assembly defining a front portion configured to overlay a front of a head of a wearer, a rear portion configured to overlay a rear of the head of the wearer, a top portion configured to overlay a top of the head of the wearer, and two opposed side portions each configured to overlay a respective side of the head of the wearer; wherein each of the front, rear, side and top portions includes a zone where the liner assembly includes a plurality of overlapping layers, each of the layers being made from one of first, second, third and fourth materials, where the first material has a greater hardness than that of the second, third and fourth materials, the second material has a greater hardness than that of the third and fourth materials, and the third material has a greater hardness than that of the fourth material, and; the one zone of the front portion includes one or more of zones F1, F2 and F3, wherein the zone F1 including a layer of the second material of at least 3.2 millimeters (mm) thickness, a layer of the third material of at least 4.8 mm thickness, a layer of the second material of at least 8 mm thickness, and a layer of the third material of at least 6.4 mm thickness, the zone F2 including a layer of the second material of at least 8 millimeters (mm) thickness, a layer of the third material of at least 16 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, and the zone F3 including a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness; the zone of the rear portion includes one or more of zones R1 and R2, wherein the zone R1 including a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the second material of at least 12.8 mm thickness, and a layer of the fourth material of at least 3.2 mm thickness, and the zone R2 including a layer of the second material of at least 6.4 millimeters (mm) thickness, a layer of the first material of at least 1.6 mm thickness, a layer of the third material of at least 9.6 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness; the zone of the side portions includes one or more of zones S1 and S2, wherein the zone S1 including a layer of the second material of at least 4.8 millimeters (mm) thickness, a layer of the first material of at least 3.2 mm thickness, a layer of the third material of at least 8 mm thickness, and a layer of the fourth material of at least 6.4 mm thickness, and the zone S2 including a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness; and the zone of the top portion includes one or more of zones T1 and T2, wherein the zone T1 including a layer of the second material of at least 3.2 millimeters (mm) thickness, and a layer of the third material of at least 18.4 mm thickness, and the zone T2 including a layer of the second material of at least 11.2 millimeters (mm) thickness, and a layer of the third material of at least 6.4 mm thickness. - View Dependent Claims (12, 13)
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Specification