Apparel – Guard or protector – For wearer's head
Patent
1982-04-16
1984-02-21
Nerbun, Peter P.
Apparel
Guard or protector
For wearer's head
A42B 300, A61F 904
Patent
active
044321007
ABSTRACT:
Herein is a disclosed a transparent safety visor which may be retrofitted to protective hardhat helmets. Such helmets typically consist of an inverted bowl defining a number of key receptor sites at intervals around its interior circumference, and a liner cap including a central crown and a number of struts radiating therefrom and terminating in keys adapted to be releasably locked to the receptor sites to maintain the liner cap and bowl in a fixed relationship. The visor is made of a flexible, transparent, generally rectangular plastic sheet, with at least a pair of slots in the sheet through which are inserted a corresponding number of liner cap keys prior to placement thereof in the receptor sites. The lower edge of the visor extends below the edge of the helmet to provide a gripping surface for user adjustment of the position of the visor, and the upper edge of the visor slides between the liner cap and the bowl when adjusted. The upper edge is pressed against the interior of the bowl by the liner cap and by the visor's resistance to curvature, thus establishing friction which maintains the visor in a stationary position until adjusted.
REFERENCES:
patent: 2204688 (1940-06-01), McClung et al.
patent: 3336598 (1967-08-01), Aebersold et al.
patent: 4287615 (1981-09-01), Morin
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