Welding mask lens spring and flash barrier

Details Welding mask lens spring and flash barrier Welding mask lens spring and flash barrier

1987-03-02

1988-10-04

Nerbun, Peter

Apparel

Guard or protector

For wearer's head

A61F 906

Patent

active

047747234

ABSTRACT:
In a welding mask assembly, a shield section having a viewing port defined by a peripheral frame; a lens pack mounted in the port; a cover member; and cooperating locking elements between the cover member and the frame. The cover member operates between a locked position supporting the lens pack in the port and a released position permitting removal of the lens pack upon lateral movement of the cover member relative to the frame in only one predetermined plane. A spring element normally biases the cover member away from the plane.

REFERENCES:
patent: 1885426 (1932-11-01), Flood
patent: 2180216 (1939-11-01), Snodgrass
patent: 3112490 (1963-12-01), Malcom, Jr.
patent: 3444561 (1969-05-01), Boyer

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