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 Title: |
US4402578:
Spectacle frame with removable lens holder
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Minart, Francois; Saint Germain en Laye, France
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| Assignee: |
Essilor International, cie Generale d'Optique, Cretell, France
other patents from ESSILOR INTERNATIONAL COMPAGNIE GENERALE D OPTIQUE (180585) (approx. 297)
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| Published / Filed: |
1983-09-06
/ 1981-07-08
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| Application Number: |
US1981000281416
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| IPC Code: |
Advanced:
G02C 1/00;
G02C 1/04;
G02C 1/06;
G02C 5/00;
G02C 5/02;
Core:
more...
IPC-7:
G02C 5/00;
G03B 23/00;
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| U.S. Class: |
Current:
351/140;
351/124;
351/133;
Original:
351/140;
351/124;
351/133;
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| Field of Search: |
351/125,98,92,124,133,134,135,140,150,105,149
002/442,443
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| Priority Number: |
| 1980-08-12 |
FR1980000017730 |
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| Abstract: |
A spectacle frame comprises a crossbar and a removable lens holder comprising a central bridge, side pieces joined by the bridge retaining respective lenses. The bridge mates with a central section of the crossbar to removably attach the lens holder to the crossbar. The bridge comprises two branches curved in opposite senses, substantially in alignment with the side pieces, to constitute as plane closed loop. The branches of the bridge carry resilient retaining clips which engage co-operating edge portions of the central section of the crossbar.
The central section comprises two branches curved in opposite senses and joined together to constitute a substantially plane closed loop analogous to and superposable on the closed loop formed by the curved branches of the bridge.
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| Attorney, Agent or Firm: |
Brown, Charles E. ;
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| Primary / Asst. Examiners: |
Corbin, John K.; Bovernick, Rodney B.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
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First Claim:
Show all 8 claims |
I claim:
1. A spectacle frame comprising a crossbar, respective wings symmetrically pivoted to the opposite ends of said crossbar, and a removable lens holder carried by said crossbar, said lens holder comprising a central bridge, symmetrically disposed side pieces joined by said central bridge and means on said side pieces for retaining respective lenses, each of said side pieces of said lens holder being designed to mate with a corresponding side section of said crossbar when said lens holder is mounted thereon and said central bridge of said lens holder being designed to mate with a corresponding central section of said crossbar when said lens holder is mounted thereon so as to removably attach said lens holder to said crossbar, said central bridge of said lens holder comprising two branches curved in opposite senses, substantially in alignment with said side pieces of said lens holder and joined together at their respective opposite ends to constitute a substantially plane closed loop, said central bridge of said lens holder carrying at least two resilient retaining clips disposed transversely of said substantially plane loop, and each retaining clip being designed to engage and resiliently retain a co-operating edge portion of said central section of said crossbar so as to removably attach said lens holder to said crossbar.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 12 U.S. patent(s) that reference this one
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