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 Title: |
US4047809:
Spectacles having adjustable temples
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Zuccatti, Joyce L.; Fairfax, VA 22030
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| Assignee: |
None
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| Published / Filed: |
1977-09-13
/ 1976-05-24
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| Application Number: |
US1976000689566
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| IPC Code: |
Advanced:
G02C 5/20;
IPC-7:
G02C 5/20;
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| ECLA Code: |
G02C5/20; S02C200/06; S02C200/10;
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| U.S. Class: |
Current:
351/118;
351/119;
Original:
351/118;
351/119;
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| Field of Search: |
351/118,119,19
403/108,109
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| Priority Number: |
| 1976-05-24 |
US1976000689566 |
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| Abstract: |
Spectacles that include a frame with temples each pivotally connected to the frame and in which the length of the temples are adjustable by the wearer. Extension means is cooperatively associated with each free end or terminal portion of the temples in the form of a pair of extension members. Guiding means is utilized to permit slidable movement of the extension members relative to the temple during adjustment to its various positions with locking means for releasably securing the extension members in longitudinally adjusted positions relative to their companion temple.
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| Primary / Asst. Examiners: |
Sacher, Paul A.;
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| Family: |
None
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First Claim:
Show all 3 claims |
I claim:
1. Spectacles comprising:
- A. a frame;
- B. temples each of which has one end pivotally connected to said frame and an oppositely disposed free end with an inwardly extending temple wall extending intermediate said ends;
- C. extension means cooperatively associated with each free end of said temples, said extension means comprising a pair of extension members;
- D. guiding means to permit slidable movement of said extension members relative to its temple during adjustment to its various positions, said guiding means providing each extension member and a respective temple to be interfitted one within the other and being slidable and longitudinally adjustable relative to its temple;
- E. said guiding means is constituted by a channel in said temples, and said extension member is retractable inwardly and outwardly of and interfitting with the companion channel in the temple;
- F. locking means for releasably securing said extension members in longitudinally adjusted positions relative to their companion temple, said locking means include a locking member for bridging between and interconnecting the extension member and temple;
- G. said locking means includes a plurality of apertures in spaced apart relation to each other positioned on said inwardly extending temple wall; and
- H. said locking member includes:
1. an inwardly extending arm at one end thereof,
- 2. means for firmly securing to the extension member said arm,
- 3. a flexible body portion integrally formed with said arm and extending parallel to said extension member,
- 4. an inwardly projecting tab integrally formed with said body portion and adapted to extend in the respective apertures of the temple, so that a positive force is required to disengage and retract said tab from within the respective aperture to overcome the tension against the temple to permit longitudinal adjustment of the extension member, such that in the normal wearing position of the spectacles by the wearer sufficient pressure is maintained to retain said tab within its aperture,
- 5. said locking members being positioned inwardly of each temple so that they are not visible when the spectacles are worn, and
- 6. said tab being dimensioned so as to retain said body portion in laterally spaced apart relationship to said inwardly extending temple wall so as to facilitate grasping said body portion to release said tab from a particular one of said apertures such that longitudinal adjustment of said extension member relative to a respective one of said temples may be obtained.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 9 U.S. patent(s) that reference this one
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