Protective shields
AssigneeEquipment Armor, Inc.
InventorTimothy David Nickodemus
Life of this patent
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Abstract
Protective shields configured to prevent projection against projectiles, such as during excavating and/or mining operations, are provided. The protective shields include a base layer comprising one or more transparent polycarbonate layers, a sacrificial polycarbonate layer comprising a transparent polycarbonate, and an air gap positioned directly between at least a portion of the base layer and the sacrificial polycarbonate layer. The sacrificial polycarbonate layer is directly or indirectly attached to the base layer in a manner to provide the air gap positioned between the base layer and the sacrificial polycarbonate layer.
Claims19
A protective shield, comprising:
- (a) a base layer comprising one or more transparent polycarbonate layers;
- (b) a sacrificial polycarbonate layer comprising a transparent polycarbonate, wherein the sacrificial polycarbonate layer is directly or indirectly attached to the base layer;
- and
- (c) an air gap positioned directly between at least a portion of the base layer and the sacrificial polycarbonate layer and circumscribed by a bead of an adhesive that adheres the sacrificial polycarbonate layer directly to the base layer;
- wherein the sacrificial polycarbonate layer includes a first frit area defined by a first removal of a first surface coating of the sacrificial polycarbonate layer, the base layer includes a corresponding second frit area defined by a second removal of a second surface coating of the base layer, and wherein the bead of the adhesive in disposed between and in contact with the first frit area and the second frit area.
A method of forming a protective shield, comprising:
- (a) providing a base layer comprising one or more transparent polycarbonate layers;
- (b) providing a sacrificial polycarbonate layer comprising a transparent polycarbonate;
- (c) directly or indirectly attaching the sacrificial polycarbonate layer to the base layer to define an air gap positioned between at least a portion of the base layer and the sacrificial polycarbonate layer via depositing a bead of an adhesive that adheres the sacrificial polycarbonate layer directly to the base layer
- wherein the sacrificial polycarbonate layer includes a first frit area defined by a first removal of a first surface coating of the sacrificial polycarbonate layer, the base layer includes a corresponding second frit area defined by a second removal of a second surface coating of the base layer, and wherein the bead of the adhesive in disposed between and in contact with the first frit area and the second frit area.
Dependencies are inferred from the claim text.