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US 5,493,348 AGranted
Means for mounting a prescription lens accessory onto a pair of glasses
AssigneeCrews, Inc.
InventorsA. Glen Herald, Jr., John Chin
Life of this patent
Estimating the term…
Abstract
A pair of glasses to which an eyeglass accessory is secured by use of at least one T-slot on the pair of glasses and a complementally-shaped T-bar on the eyeglass accessory. In a preferred embodiment the eyeglass accessory allows corrective prescription lenses to be mounted inside a pair of safety glasses.
Claims10
Mounting means for mounting an eyeglass accessory onto a pair of glasses in which:
- said pair of glasses include a frame portion,
- said frame portion of said pair of glasses includes at least one T-slot, and
- said eyeglass accessory having lens means including at least one projecting T-bar which interfits into said at least one T-slot in said frame portion of said pair of glasses in order to mount said eyeglass accessory onto said pair of glasses.
Dependencies are inferred from the claim text.