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US 4,539,713 AGranted
Chin operated shield and welding hood
AssigneeRam Corporation
InventorRaymond P. Hodge
Life of this patent
Estimating the term…
Abstract
An improved welding hood with a chin operated face shield provides hood stability, adjustability, ease of use, long life, an ability to hook the viewing window shield open, and positive closing of the shield otherwise. A linkage from the chin of the operator pivots the viewing window shield on the face shield. A spring biases the shield closed, is adapted to be hooked, and is attached to the shield and the linkage.
Claims7
An improved welding hood with a chain operated face shield comprising
- the face shield having a viewing window;
- a viewing window shield pivotably mounted on the face shield;
- linkage means pivotably mounted on the face shield for pivotably moving the viewing window shield in response to chin movement;
- and
- biasing means for biasing the viewing window shield closed over the viewing window, the biasing means having one end and an opposite end and being attached at the one end on the viewing window shield and at the opposite end to the linkage means.
2 more elements
Dependencies are inferred from the claim text.