US3594073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle hinge
Assignee: Fendall Co
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Filing: 1969-07-09
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Granted: 1971-07-20
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Expires: 1989-07-09
Abstract
Abstract A spectacle hinge incorporating interleaved hinge members and a hinge pin passing pivotally therebetween wherein the hinge pin is provided with projecting means providing an interlocking relationship with one of the hinge members in normal positions of spectacle operation or storage in a manner preventing inadvertent hinge disassembly.
Inventors
- 👤 John N Liautaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:37
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/22; G02C5/2209
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
In combination in spectacles comprising a frame having a pair of temples pivotally movable relative thereto and normally in either folded condition for storage or extended position for wearing, a hinge member on each temple for cooperation with a respective hinge member on the frame, cooperating hinge members having in combination at least three interleaved portions apertured to accept a pivot pin, a generally cylindrical pivot pin for cooperation with said interleaved portions, said pin having at least one radial projection thereon and both said cooperating hinge members having slots in the top two interleaved portions opening into said apertures to pass said projection, said slots being axially aligned only when said hinge members are out of said normal conditions.
Claim 2
Dependent Claim
120 words
In combination in spectacles comprising a frame having a pair of temples pivotally movable relative thereto and normally in either folded condition for storage or extended position for wearing, a hinge member on each temple for cooperation with a respective hinge member on the frame, cooperating hinge members having in combination at least three interleaved portions apertured to accept a pivot pin, a generally cylindrical pivot pin for cooperation with said interleaved portions, said pin having at least one radial projection thereon and both said cooperating hinge members having slots in the top two interleaved portions opening into said apertures to pass said projection, said slots being axially aligned only when said hinge members are out of said normal conditions.
Claim 3
Dependent Claim
13 words
The structure of claim 1 wherein said pin has a plurality of projections.
Claim 4
Dependent Claim
11 words
The structure of claim 2 wherein said projections are diametrically opposed.
Claim 5
Dependent Claim
23 words
The structure of claim 1 wherein said slots are aligned when said temples are folded toward said frame beyond the normal folded condition.
Claim 6
Dependent Claim
25 words
The structure of claim 1 wherein said slots are aligned when said temples are in a pivoted condition between normal open and normal folded condition.
Claim 7
Dependent Claim
48 words
The structure of claim 1 wherein said projection comprises a material harder than the material of said interleaved portions and has its axially forwardly facing edge operable to form said slots in the interleaved portions upon axial movement of the pin with said projection into Said interleaved portions.
References Cited (Backward Citations)
GB124686A
Cited
US2933016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |