US3977273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flywheel
Assignee: Societe Europeenne de Propulsion SEP SA
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Filing: 1974-09-05
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Granted: 1976-08-31
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Expires: 1994-09-05
Abstract
Abstract A flywheel for an inertial guidance system, comprising a rim reinforced by a sheet formed of one or more filaments wound around the rim and intersecting adjacent the axis of symmetry of the rim. The sheet of filaments may be reinforced by means of a binder and the flywheel may or may not include a hub at the axis of symmetry and having the filaments wound therearound.
Inventors
- 👤 Adolphe O. G. Ernst
- 👤 Pierre J. E. Lamicq
- 👤 Jean A. Peisino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:02
CPC Classifications
B; B64; B64G; B64G1/00; B64G1/22; B64G1/24; B64G1/28; B64G1/285; B64G1/283; F; F16; F16F; F16F15/00; F16F15/30; F16F15/305; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2132
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
An inertia flywheel comprising a rim having an axis of symmetry and a sheet formed of at least one filament, said sheet enveloping at least partially the outer surface of said rim in direct contact therewith and extending from said outer surface toward adjacent said axis on each side of said rim, the runs of filament forming each part of the sheet extending from said outer surface of the rim toward adjacent said axis being directed from adjacent said axis substantially radially toward said rim and intersecting adjacent said axis between said axis and said rim.
Claim 2
Dependent Claim
96 words
An inertia flywheel comprising a rim having an axis of symmetry and a sheet formed of at least one filament, said sheet enveloping at least partially the outer surface of said rim in direct contact therewith and extending from said outer surface toward adjacent said axis on each side of said rim, the runs of filament forming each part of the sheet extending from said outer surface of the rim toward adjacent said axis being directed from adjacent said axis substantially radially toward said rim and intersecting adjacent said axis between said axis and said rim.
Claim 3
Dependent Claim
30 words
An inertia flywheel as set forth in claim 1 and including means for suspending and driving said flywheel arranged in an aperture formed in said sheet coaxially about said axis.
Claim 4
Dependent Claim
60 words
An inertia flywheel as set forth in claim 2 wherein said suspension and drive means comprises a hub around which at least one of the filaments forming said sheet is wound, the runs of filaments forming each part of the sheet extending from said outer surface of the rim toward adjacent said axis being directed substantially tangential to said hub.
Claim 5
Dependent Claim
25 words
An inertia flywheel as set forth in claim 3 wherein said sheet is formed by a single thread wound around the rim and the hub.
Claim 6
Dependent Claim
44 words
An inertia flywheel as set forth in claim 3 wherein each said part of the sheet extending from said outer surface of rim toward adjacent said axis has a greater thickness in its portion adjacent said hub and a decreasing thickness towards the rim.
Claim 7
Dependent Claim
46 words
An inertia flywheel as set forth in claim 3 wherein said parts of the sheet extending from said outer surface of the rim toward adjacent said axis on each side of the rim are divergent away from one another in a radial direction towards said hub.
Claim 8
Dependent Claim
23 words
An inertia flywheel as set forth in claim 1 wherein said sheet comprises a plurality of layers and a binder rigidifying said layers.
Claim 9
Dependent Claim
41 words
An inertia flywheel as set forth in claim 1 wherein said sheet is formed of at least a thread consisting of a body of compound high tensile fibres made of an element selected from the group consisting of carbon and boron.
Claim 10
Dependent Claim
26 words
An inertia flywheel as set forth in claim 1 wherein the rim is at reast subjected to a compressive prestress created by tension in the filament.
Claim 11
Dependent Claim
17 words
An inertia flywheel as set forth in claim 1 wherein said rim is provided with a slit.
Claim 12
Dependent Claim
37 words
An inertia flywheel as set forth in claim 3 wherein said filments are disposed adjacent to each other in the run from said axis, to and around said rim and in the return run to said axis.
References Cited (Backward Citations)
US3057509A
Cited
US3449182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |