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US 3,938,655 AGranted
Removable stiffener for spectacle cases
AssigneeMaster Specialty Products
InventorAbraham Romolt
Life of this patent
Estimating the term…
Abstract
A removable stiffener for slip-in spectacle cases is formed by bending a sheet of resilient metal into a U-shaped structure approximating the cross-section of the spectacle case and lined on its internal concave surface with a soft, non-abrasive material. The stiffener is manually compressed prior to insertion into the spectacle case and is retained therein by the friction developed between its external surface and the inner walls of the case, due to its restrained expansion. The insert stiffens the case and prevents damage to the eyeglasses carried therein.
Claims5
A two-piece spectacle case comprising in combination:
- an elongated tubular outer sheath of flexible material having one end thereof open to receive a pair of spectacles inserted axially into said sheath coaxially therewith;
- and
- an elongated longitudinally rigid stiffener removably disposed within said sheath and defining a spectacle-receiving channel of generally U-shaped cross-section having opposed, spaced, resiliently connected front and rear walls, said stiffener being inserted slidingly into said sheath axially through said open end with the walls of said stiffener spaced apart a certain distance and exerting an outwardly directed force against said sheath to maintain said sheath in substantial conformity with the cross-sectional shape of said spectacles.
Dependencies are inferred from the claim text.