US3593364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle hinge pin
Assignee: Fendall Co
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Filing: 1969-06-03
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Granted: 1971-07-20
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Expires: 1989-06-03
Abstract
Abstract A hinge pin constructed of solid molded plastic for assembly with conventional spectacle temple-to-frame hinges. A plastic hinge pin is provided having a peripheral interference fit with respect to the hinge plate pivot apertures and integral yieldable means to retain it in position therein. One form of the invention provides a pin having a varying peripheral diameter with a maximum diameter in excess of and in interference fit with the inner surface of the hinge barrel.
Inventors
- 👤 Philip J Liautaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:34
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/22; G02C5/2209; E; E05; E05D; E05D5/00; E05D5/10; E05D5/12; E05D5/127; E05D2005/102; E05D2005/106; G02C2200/00; G02C2200/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A hinge pin for use with a pair of metal hinge plates having interleaved rigid portions with aligned pivot apertures, said pin comprising a generally peripherally solid member of semiresilient plastic of a strength less than the strength of said hinge plates and having a cross-sectional area substantially no greater than said pivot apertures, said cross section comprising longitudinally extending ridge portions projecting radially into interference fit with the sides of said apertures, said ridge portions being spaced by longitudinally extending valley portions of a radius less than the radius of said apertures, said pin having a substantially uniform cross-sectional area throughout the length thereof contacting said interleaved rigid hinge portions.
Claim 2
Dependent Claim
111 words
A hinge pin for use with a pair of metal hinge plates having interleaved rigid portions with aligned pivot apertures, said pin comprising a generally peripherally solid member of semiresilient plastic of a strength less than the strength of said hinge plates and having a cross-sectional area substantially no greater than said pivot apertures, said cross section comprising longitudinally extending ridge portions projecting radially into interference fit with the sides of said apertures, said ridge portions being spaced by longitudinally extending valley portions of a radius less than the radius of said apertures, said pin having a substantially uniform cross-sectional area throughout the length thereof contacting said interleaved rigid hinge portions.
Claim 3
Dependent Claim
15 words
The pin structure set forth in claim 1 wherein said cross section is substantially polygonal.
Claim 4
Dependent Claim
19 words
The pin structure set forth in claim 2 wherein said polygonal cross section takes the form of a square.
Claim 5
Dependent Claim
35 words
The structure set forth in claim 1 wherein said pin is provided with a pointed end having a diameter at the point of connection with the pin no greater than the diameter of said apertures.
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) | 1974-07-19 | 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 |