Apparel – Guard or protector – For wearer's head
Patent
1996-02-12
1999-01-12
Neas, Michael A.
Apparel
Guard or protector
For wearer's head
2412, A42B 300
Patent
active
058572155
ABSTRACT:
A welding helmet having high structual integrity is formed of a single sheet of composite material, such as Kevlar fabric impregnated with a phenolic thermoset resin; a viewing port in the front of the helmet includes a welding lens is either of fixed or automatically darkening type; and curves, bends, folds and steps in the composite material and trim pieces in the viewing port area and about the peripheral rim of the helmet shell provide additional stiffening for the helmet. A method of making a welding helmet of a single sheet of composite material includes pre-forming the composite material to a shape similar to that of the finished molding helmet shape, and placing the pre-shaped composite material in a compression mold and closing the mold to mold the composite material to shape while curing the composite material by applying heat other otherwise assisting in the curing of the composite material; and mounting a welding lens in a viewing port of the welding helmet.
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Fergason Jeffrey K.
Fergason John D.
Ilixco, Inc.
Neas Michael A.
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