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US 6,474,810 B1Granted
Bridge for attaching auxiliary lenses
OwnerDave Nginventor
Life of this patent
Estimating the term…
Abstract
An auxiliary spectacle apparatus is provided wherein auxiliary lenses have a mechanical bridge fastener for releasably engaging the bridge portion of the primary frames in a manner which provides security of attachment in all directions.
Claims11
A spectacle apparatus, comprising:
- (a) a primary frame adapted for fitting on a wearer's head, said primary frame having a primary bridge medial in said primary frame;
- (b) a ridge extending forward from said primary bridge;
- (c) an indentation on a horizontal surface on said ridge;
- (d) two auxiliary lenses;
- (e) an auxiliary bridge extending between and connecting said auxiliary lenses to each other;
- (f) an upper projection extending rearward from said auxiliary bridge and a lower projection extending rearward from said auxiliary bridge;
- and
- (g) at least one protrusion on at least one of said projections, said protrusion configured for releasably inserting into said indentation, and said at least one said projection is elastic.
5 more elements
Dependencies are inferred from the claim text.