US3765267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connecting element between two members enabling them to rotate in relation to one another in three axes
Assignee: Airbus Group SAS
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Filing: 1972-01-26
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Granted: 1973-10-16
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Expires: 1992-01-26
Abstract
Abstract A connecting element particularly useful for connecting a variable pitch rotor to a hub comprises a flexible elongated portion formed of strong and resilient fibres individually enclosed and agglomerated by a vulcanised elastomer.
Inventors
- 👤 G Bourquardez
- 👤 R Coffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:11
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B64; B64C; B64C27/00; B64C27/32; B64C27/33; B64C27/51; F; F16; F16F; F16F9/00; F16F9/30; F16F9/306; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24479; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
94 words
A connecting element between two rigid members enabling between them transmission of forces and relative rotational displacement comprising rigid end portions of which at least one partly forms one of said members, respectively secured to each of said members and an intermediate elongated portion, said element substantially comprising a Bundle of fibres, each fibre being made of a bundle of a very large number of continuous mineral filaments agglomerated by a polymerized resin, said fibres being agglomerated by a polymerized resin in said end portions and by a vulcanized elastomer in said intermediate portion.
Claim 2
Dependent Claim
94 words
A connecting element between two rigid members enabling between them transmission of forces and relative rotational displacement comprising rigid end portions of which at least one partly forms one of said members, respectively secured to each of said members and an intermediate elongated portion, said element substantially comprising a Bundle of fibres, each fibre being made of a bundle of a very large number of continuous mineral filaments agglomerated by a polymerized resin, said fibres being agglomerated by a polymerized resin in said end portions and by a vulcanized elastomer in said intermediate portion.
Claim 3
Dependent Claim
52 words
A connecting element according to claim 1, wherein at least one rigid end portion of said connecting element is widened out in the form of a frustum whose axis corresponds to the axis of the intermediate portion, the frustum being fitted into a recess in one of the members to be interconnected.
Claim 4
Dependent Claim
36 words
A connecting element according to claim 1, wherein the fibres are separated into two portions, and the rigid end portions are in the form of forks, each fork embracing one of the members to be interconnected.
Claim 5
Dependent Claim
52 words
A connecting element according to claim 1, wherein the intermediate portion comprises at its periphery, in accordance with at least one of the main directions of its cross-section, longitudinally rigid strips connected to such portion by a resiliently flexible material in order to increase the structure shock absorption of the connecting element.
Claim 6
Dependent Claim
20 words
A connecting element according to claim 4, which comprises a single layer of strips only connected to said intermediate portion.
Claim 7
Dependent Claim
56 words
A connecting element according to claim 4, which comprises at least two layers of strips which are connected to one another by a resiliently flexible material, each layer being connected by one end only to one of the rigid ends of the connecting element, one end or the other alternately in the case of multiple layers.
Claim 8
Dependent Claim
116 words
A connecting element between two rigid members enabling between them transmission of forces and relative rotational displacement comprising end portions rigidly secured respectively to each of said members and an intermediate elongated portion, said element substantially comprising a bundle of fibres, each fibre being made of a bundle of a very large number of continuous mineral filaments agglomerated by a polymerized resin, said fibres being agglomerated by a polymerized resin in said end portions and by a vulcanized elastomer in said intermediate portion, and wherein the intermediate portion further comprises a central core formed by fibres including mineral filaments having a modulus of elasticity higher than that of the filaments of the fibres enclosing said core.
Claim 9
Dependent Claim
116 words
A connecting element between two rigid members enabling between them transmission of forces and relative rotational displacement comprising end portions rigidly secured respectively to each of said members and an intermediate elongated portion, said element substantially comprising a bundle of fibres, each fibre being made of a bundle of a very large number of continuous mineral filaments agglomerated by a polymerized resin, said fibres being agglomerated by a polymerized resin in said end portions and by a vulcanized elastomer in said intermediate portion, and wherein the intermediate portion further comprises a central core formed by fibres including mineral filaments having a modulus of elasticity higher than that of the filaments of the fibres enclosing said core.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |