Ventilated welding shield

Details Ventilated welding shield Ventilated welding shield

1988-07-27

1990-01-02

Nerbun, Peter

Apparel

Guard or protector

For wearer's head

21713, 219147, A61F 906

Patent

active

048903353

ABSTRACT:
A welding shield is designed to have a flow of ventilating air directed across both exterior and interior surfaces of a viewing lens forming a part of the shield. Both integral and separable air supply arrangements are used, and all of the supplied air is filtered before delivery across the shield.

REFERENCES:
patent: 2882894 (1959-04-01), Fahey et al.
patent: 3238535 (1966-03-01), Richey
patent: 3467965 (1969-09-01), Murphy
patent: 3649964 (1972-03-01), Schoelz et al.
patent: 3657740 (1972-04-01), Cialone
patent: 4293757 (1981-10-01), Niemi
patent: 4694141 (1987-09-01), Hahn

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