US3840980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength rivetted plate joint
Assignee: Ateliers de la Haute Garonne Etablissement Auriol et Cie
•
Filing: 1971-06-21
•
Granted: 1974-10-15
•
Expires: 1991-06-21
Abstract
Abstract A rivet for use in alloy metals having mechanical characteristics of high-quality, constituted by a shank provided with a head at one extremity and bearing a conical section lengthened by a cylindrical part. This rivet is inserted in a hole of a diameter comprised between the highest section and the smaller section of its conical section.
Inventors
- 👤 J Auriol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/02; F; F16; F16B; F16B19/00; F16B19/04; F16B19/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/49943; Y10T29/49945; Y10T29/49947; Y10T29/49954; Y10T29/49956; Y10T29/49972; Y10T403/00; Y10T403/75
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A method of riveting together a plurality of superposed sheets by means of a metal rivet having a head, a frusto-conical shank portion extending from the head, the larger diameter D of the shank portion being adjacent the head and the ratio of diameter D to the smaller diameter d of the shank portion lying in the range 1.05 < OR = D/d > OR = 1.25, the degree of convergence of the portion being between 1 percent and 15 percent; the method comprising the steps of forming a cylindrical hole in the sheets having a diameter between the diameter d and the average value (D + d)/2 of the larger and smaller diameters, inserting the rivet in the hole, and deforming the end of the rivet remote from the head to secure together the sheets.
Claim 2
Independent Claim
136 words
A method of riveting together a plurality of superposed sheets by means of a metal rivet having a head, a frusto-conical shank portion extending from the head, the larger diameter D of the shank portion being adjacent the head and the ratio of diameter D to the smaller diameter d of the shank portion lying in the range 1.05 < OR = D/d > OR = 1.25, the degree of convergence of the portion being between 1 percent and 15 percent; the method comprising the steps of forming a cylindrical hole in the sheets having a diameter between the diameter d and the average value (D + d)/2 of the larger and smaller diameters, inserting the rivet in the hole, and deforming the end of the rivet remote from the head to secure together the sheets.
Claim 3
Dependent Claim
14 words
A method according to claim 1, wherein the sheets are of light alloy metal.
Claim 4
Dependent Claim
13 words
A method according to claim 2, wherein the sheets are of aluminium alloy.
Claim 5
Dependent Claim
20 words
A method according to claim 1, wherein the rivet is comprised of a material selected from titanium and titanium alloys.
References Cited (Backward Citations)
US3270410A
Cited
US3391449A
Cited
US3369440A
Cited
US3418012A
Cited
US3359847A
Cited
US3630116A
Cited
US3526032A
Cited
US3516699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |