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US3298725A
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High-strength fastener
Assignee: Individual
•
Filing: 1964-10-01
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Granted: 1967-01-17
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 John C Boteler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:30
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/02; B; B61; B61F; B61F5/00; B61F5/26; F16B19/00; F16B19/02; F16B3/00; F16B3/06; F16B31/00; F16B31/06; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4966; Y10T403/71; Y10T403/7123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A HIGH-STRENGTH FASTENER ASSEMBLY FOR INSERTION THROUGH SUBSTANTIALLY ALIGNED APERTURES IN STRUCTURAL MEMBERS OF A PREDETERMINED THICKNESS, SAID ASSEMBLY COMPRISING A BOLT, SLEEVE, AND NUT; SAID BOLT INCLUDING A DRIVING HEAD, A TAPERED SHANK PORTION, AND A THREADED NUT RECEIVING PORTION, SAID SLEEVE BEING CONSTRUCTED OF HIGH STRENGTH MATERIAL AND COMPRISING AN INNER SURFACE TAPERED COMPLEMENTALLY TO SAID TAPERED SHANK PORTION AND A SUBSTANTIALLY CYLINDRICAL OUTER SURFACE, THE LENGTH OF SAID SLEEVE AND SAID TAPERED PORTION CLOSELY APPROXIMATING SAID PREDETERMINED THICKNESS, SAID NUT COMPRISING A DRIVING SURFACE AND INTERNAL THREADS COOPERABLE WITH SAID THREADED NUT RECEIVING PORTION WHEREBY TORQUE IMPARTED TO SAID DRIVING HEAD AND SAID DRIVING SURFACE IS EFFECTIVE TO CAM SAID SLEEVE AND EXPAND THE SAME OUTWARDLY OVER SAID TAPERED SHANK PORTION AND IMPART A UNIFORM PRE-STRESS TO SAID STRUCTURAL MEMBERS THROUGHOUT SAID PREDETERMINED THICKNESS SURROUNDING SAID APERTURES.
Claim 2
Dependent Claim
140 words
A HIGH-STRENGTH FASTENER ASSEMBLY FOR INSERTION THROUGH SUBSTANTIALLY ALIGNED APERTURES IN STRUCTURAL MEMBERS OF A PREDETERMINED THICKNESS, SAID ASSEMBLY COMPRISING A BOLT, SLEEVE, AND NUT; SAID BOLT INCLUDING A DRIVING HEAD, A TAPERED SHANK PORTION, AND A THREADED NUT RECEIVING PORTION, SAID SLEEVE BEING CONSTRUCTED OF HIGH STRENGTH MATERIAL AND COMPRISING AN INNER SURFACE TAPERED COMPLEMENTALLY TO SAID TAPERED SHANK PORTION AND A SUBSTANTIALLY CYLINDRICAL OUTER SURFACE, THE LENGTH OF SAID SLEEVE AND SAID TAPERED PORTION CLOSELY APPROXIMATING SAID PREDETERMINED THICKNESS, SAID NUT COMPRISING A DRIVING SURFACE AND INTERNAL THREADS COOPERABLE WITH SAID THREADED NUT RECEIVING PORTION WHEREBY TORQUE IMPARTED TO SAID DRIVING HEAD AND SAID DRIVING SURFACE IS EFFECTIVE TO CAM SAID SLEEVE AND EXPAND THE SAME OUTWARDLY OVER SAID TAPERED SHANK PORTION AND IMPART A UNIFORM PRE-STRESS TO SAID STRUCTURAL MEMBERS THROUGHOUT SAID PREDETERMINED THICKNESS SURROUNDING SAID APERTURES.
References Cited (Backward Citations)
US3178984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |