Patent US3231069A successfully refreshed from Google Patents.
US3231069A
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US
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Assignee: Individual
•
Filing: 1961-10-24
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Granted: 1966-01-25
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 William E Lanham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; F16G13/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A CHAIN OF CONNECTED LINKS IN WHICH EACH LINK CONSISTS OF A UNITARY ONE-PIECE INTEGRAL CONSTRUCTION OF A RESILIENT MATERIAL HAVING A HOLLOW SLEEVE FORMING A CYLINDRICAL OPENING THEREIN AND SPACED ARMS PROJECTING FROM ONE SIDE OF THE SLEEVE ADJACENT THE ENDS THEREOF, SAID ARMS HAVING ALIGNED OPENINGS SMALLER THAN THE OPENING IN THE SLEEVE AND ADAPTED TO OVERLIE THE OPPOSITE ENDS OF THE SLEEVE OF AN ADJACENT LINK, A PIN IN THE SLEEVE OF EACH LINK HAVING REDUCED ENDS FORMING ANNULAR SHOULDERS, SAID REDUCED ENDS OF THE PIN PROJECTING BEYOND THE SIDES OF LINK INTO THE ALIGNED OPENINGS OF SMALLER DIAMETER IN THE ARMS OF SAID ADJACENT LINK, AND SAID LINKS BEING ASSEMBLED BY SPREADING THE ARMS OF EACH LINK TO SNAP THEM OVER THE ENDS OF THE PIN IN THE NEXT ADJACENT LINK WHEREBY THE PIN IS LOCKED IN POSITION BETWEEN THE LINKS IT CONNECTS BY THE ENGAGEMENT OF THE RESILIENT ARMS OF ONE LINK WITH THE ANNULAR SHOULDERS ON THE PIN IN THE SLEEVE OF THE NEXT ADJACENT LINK.
Claim 2
Dependent Claim
172 words
A CHAIN OF CONNECTED LINKS IN WHICH EACH LINK CONSISTS OF A UNITARY ONE-PIECE INTEGRAL CONSTRUCTION OF A RESILIENT MATERIAL HAVING A HOLLOW SLEEVE FORMING A CYLINDRICAL OPENING THEREIN AND SPACED ARMS PROJECTING FROM ONE SIDE OF THE SLEEVE ADJACENT THE ENDS THEREOF, SAID ARMS HAVING ALIGNED OPENINGS SMALLER THAN THE OPENING IN THE SLEEVE AND ADAPTED TO OVERLIE THE OPPOSITE ENDS OF THE SLEEVE OF AN ADJACENT LINK, A PIN IN THE SLEEVE OF EACH LINK HAVING REDUCED ENDS FORMING ANNULAR SHOULDERS, SAID REDUCED ENDS OF THE PIN PROJECTING BEYOND THE SIDES OF LINK INTO THE ALIGNED OPENINGS OF SMALLER DIAMETER IN THE ARMS OF SAID ADJACENT LINK, AND SAID LINKS BEING ASSEMBLED BY SPREADING THE ARMS OF EACH LINK TO SNAP THEM OVER THE ENDS OF THE PIN IN THE NEXT ADJACENT LINK WHEREBY THE PIN IS LOCKED IN POSITION BETWEEN THE LINKS IT CONNECTS BY THE ENGAGEMENT OF THE RESILIENT ARMS OF ONE LINK WITH THE ANNULAR SHOULDERS ON THE PIN IN THE SLEEVE OF THE NEXT ADJACENT LINK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |