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US 6,729,725 B1Granted
Rimless eyeglasses
AssigneeUnited Creation Optical Company Limited
InventorSiu Kwong Cheng
Life of this patent
Estimating the term…
Abstract
A rimless eyeglass frame with the lenses secured to hinge portions of the temples and to the bridge by a threaded bolt and nut assembly with the hinge portions and bridge including two projecting teeth at each connection to the eyeglass lenses and with the projecting teeth gripping the eyeglass lenses and helping to secure them in place.
Claims16
An eyeglass frame comprising:
- two plastic lenses,
- two temples,
- each of said two temples terminating in a temple crossbar at one end of each of the two temples,
- a bridge terminating in two bridge crossbars located at opposite ends of the bridge,
- each of said two lenses including only two holes,
- each of the temple crossbars and each of the bridge crossbars include a bolt secured to the crossbars and a free end of the bolts extending through the two holes of the two lenses,
- a nut assembly secured to the free end of each bolt to secure the two lenses between the two temples and the bridge, and
- each of the two bridge crossbars and the temple crossbars include two projecting teeth with the bolt being located between the two projecting teeth for engaging with and penetrating into a surface of the two lenses by points of the projecting teeth only when the nut assembly is tightened on the bolts.
5 more elements
A rimless eyeglass frame comprising:
- two plastic lenses,
- two temples,
- each of said two temples terminating in a temple crossbar at one end of each of the two temples,
- a bridge terminating in two bridge crossbars located at opposite ends of the bridge,
- each of said two lenses including only two holes,
- each of the temple crossbars and each of the bridge crossbars include a bolt secured to the crossbars and a free end of the bolts extending through the two holes of the two lenses,
- a nut assembly secured to the free end of each bolt to secure the two lenses between the two temples and the bridge, the nut assembly including a threaded nut encased in a rotatable sleeve, and
- each of the two bridge crossbars and the temple crossbars include two projecting teeth with the bolt being located between the two projecting teeth for engaging with and penetrating into a surface of the two lenses by points of the projecting teeth only when the nut assembly is tightened on the bolts.
5 more elements
Dependencies are inferred from the claim text.