US3574452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breakaway temple hinge mounting for spectacle frame
Assignee: Individual
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Filing: 1969-05-05
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Granted: 1971-04-13
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Expires: 1989-05-05
Abstract
Abstract The subject invention relates to a breakaway hinge mounting for spectacles which permits the temple piece to break away from the lens frame under an impact. The hinge includes a side leaf rigidly secured to the temple piece, a front leaf pivotally secured to the side leaf, a gripper rigidly secured to the front leaf and a securing member embedded in the lens frame for engaging the gripper, thereby preventing rotation of the temple member and permitting the temple piece to break away from the lens frame when the spectacle hinge is subjected to an external force.
Inventors
- 👤 Stuart Louis Mclendon
- 👤 Joseph Robert Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:40
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A spectacle frame comprising, in combination, a lens frame, a pair of temple pieces, and a breakaway hinge for connecting said temple pieces to said lens frame for allowing either of said temple pieces to become disengaged from said lens frame when subjected to a predetermined stress which would cause breakage of the temple piece, wherein said breakaway hinge includes a first and a second leaf pivotally connected, first means for attaching said first leaf to said temple piece, and second means for attaching said second leaf to said lens frame, wherein one of said means for attaching said leaves will break away under a predetermined stress.
Claim 2
Dependent Claim
107 words
A spectacle frame comprising, in combination, a lens frame, a pair of temple pieces, and a breakaway hinge for connecting said temple pieces to said lens frame for allowing either of said temple pieces to become disengaged from said lens frame when subjected to a predetermined stress which would cause breakage of the temple piece, wherein said breakaway hinge includes a first and a second leaf pivotally connected, first means for attaching said first leaf to said temple piece, and second means for attaching said second leaf to said lens frame, wherein one of said means for attaching said leaves will break away under a predetermined stress.
Claim 3
Dependent Claim
30 words
The spectacle frame of claim 1, wherein said breakaway hinge includes a gripper means secured to one of said leaves and a securing member means carried on said spectacle frame.
Claim 4
Dependent Claim
29 words
The spectacle frame of claim 2, further including a recess in said spectacle frame for receiving the leaf carrying said gripper means thereby preventing said temple piece from rotating.
Claim 5
Dependent Claim
26 words
The spectacle frame of claim 2, wherein said gripper means and said securing member means comprise a snap fastener ball and a snap fastener plate, respectively.
Claim 6
Dependent Claim
26 words
The spectacle of claim 2, wherein the gripper means is secured to said second leaf and the securing member means is carried on said lens frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |