US3964341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-ring filament rotor
Assignee: Johns Hopkins University
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Filing: 1975-02-26
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Granted: 1976-06-22
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Expires: 1995-02-26
Abstract
Abstract A rotary energy storage device or flywheel structure is provided with a rim portion comprised of multiple rings or windings of filamentary material having high tensile strength and which are bonded or otherwise held together at a predetermined number of localized areas, such as at opposite ends of one or more radial spokes so that major portions of the individUal rings or windings may expand with minimum constraints during rotation of the flywheel structure.
Inventors
- 👤 David W. Rabenhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:25
CPC Classifications
F; F16; F16C; F16C15/00; F16F; F16F15/00; F16F15/30; F16F15/305; F16C2361/00; F16C2361/55; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2117; Y10T74/2119; Y10T74/212
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
82 words
An inertial energy storage rotor device for rotation about a shaft comprising, in combination, rim means comprised of a plurality of annular rim elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; rim constraining means for restraining radially outward movement, relative to the shaft, of the rim elements, the rim constraining means being disposed at selected locations of the rim means; and hub means for carrying the rim means, the hub means being attached to the shaft.
Claim 2
Dependent Claim
82 words
An inertial energy storage rotor device for rotation about a shaft comprising, in combination, rim means comprised of a plurality of annular rim elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; rim constraining means for restraining radially outward movement, relative to the shaft, of the rim elements, the rim constraining means being disposed at selected locations of the rim means; and hub means for carrying the rim means, the hub means being attached to the shaft.
Claim 3
Dependent Claim
20 words
The inertial energy storage rotor device specified in claim 1 wherein said rim elements are formed of fiber composite material.
Claim 4
Dependent Claim
17 words
The inertial energy storage rotor device specified in claim 2 wherein said rim elements comprise filament windings.
Claim 5
Dependent Claim
17 words
The inertial energy storage rotor device specified in claim 2 wherein said rim elements are discrete rings.
Claim 6
Dependent Claim
18 words
The inertial energy storage rotor device specified in claim 1 wherein rim elements have ballast material disposed therebetween.
Claim 7
Dependent Claim
37 words
The inertial energy storage rotor device specified in claim 1 wherein said rim constraining means extends along a single diameter of the rotor device and its opposite ends hold said rim means only at two attachment points.
Claim 8
Dependent Claim
26 words
The inertial energy storage rotor device specified in claim 6 wherein the rim constraining means is a composite filament material wound diametrically about said rim means.
Claim 9
Dependent Claim
21 words
The inertial energy storage rotor device specified in claim 6 wherein said rim elements are fastened together at each attachment point.
Claim 10
Dependent Claim
20 words
The inertial energy storage rotor device specified in claim 6 wherein said rim constraining means is expandable along said diameter.
Claim 11
Dependent Claim
46 words
The inertial energy storage rotor device specified in claim 9 wherein said rim constraining means is a pair of flexible hoop members whose diametrically opposed edges connect each of two diametrically opposed sides of the shaft to said rim means at one of said attachment points.
Claim 12
Dependent Claim
49 words
The inertial energy storage rotor device specified in claim 9 wherein said rim constraining means is a single flexible hoop disposed in a plane perpendicular to the plane of rotation of said rim means and having diametrically opposed edge portions connected to said rim means at said attachment points.
Claim 13
Dependent Claim
31 words
The inertial energy storage rotor device specified in claim 11 wherein the shaft extends through the body of the hoop along a line perpendicular to a line connecting said attachment points.
Claim 14
Dependent Claim
52 words
The inertial energy storage rotor device specified in claim 6 wherein, said rim elements are formed of composite fibers fastened together only at said two diametrical attachment points, and said rim constraining means comprises a flexible hoop means having its outer edge attached to said rim elements at said two attachment points.
Claim 15
Dependent Claim
52 words
The inertial energy storage rotor device specified in claim 1 wherein the rim means are formed with outer perimetrical arc-like surface portions circumscribed when at rest by a circle of a radius which equals the perimeter defined by the combination of surface portions when the device is rotated at a pre-determined speed.
Claim 16
Dependent Claim
23 words
The inertial energy storage rotor device specified in claim 1 and further comprising balance weights disposed on perimetric surfaces of the rim means.
Claim 17
Dependent Claim
64 words
The inertial energy storage rotor device of claim 1 wherein the rim means comprise a major interior portion held along one radius thereof by rim constraining means, two minor portions of the rim means holding said major portion therebetween, the two minor portions being held along radii thereof by rim constraining means which extend in the opposite direction from said first-mentioned rim constraining means.
Claim 18
Dependent Claim
46 words
The inertial energy storage rotor device specified in claim 5 wherein rim elements disposed relatively more near to the shaft have greater amounts of ballast material disposed therebetween than do those rim elements located within the structure at a relatively greater radial distance from the shaft.
Claim 19
Dependent Claim
46 words
The inertial energy storage rotor device specified in claim 1 wherein the rim elements comprise filament windings, windings beginning at the inner periphery of the rim means and extending to the outer periphery thereof being wound back inwardly toward the shaft to a point of termination.
Claim 20
Dependent Claim
24 words
The inertial energy storage rotor device specified in claim 18 wherein the point of termination lies on the inner periphery of the rim means.
Claim 21
Dependent Claim
32 words
The inertial energy storage rotor device specified in claim 1 wherein certain of the rim elements are disposed within the rim means at an angle to a plane normal to the shaft.
Claim 22
Dependent Claim
55 words
The inertial energy storage rotor device specified in claim 20 wherein certain other rim elements are disposed at an equal angle to a plane normal to the shaft as said first-mentioned rim elements, lines along which the second-mentioned rim elements extend having the negative slope of the lines along which the first-mention rim elements extend.
Claim 23
Dependent Claim
26 words
The inertial energy storage rotor specified in claim 21 wherein the first and second-mentioned rim elements lie alternately in successive layers extending radially from the shaft.
Claim 24
Dependent Claim
72 words
An inertial energy storage rotor device for rotation about a shaft comprising, in combination, rim means carried on the shaft and comprised of a plurality of annular rim elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; and, rim constraining means for restraining radially outward movement, relative to the shaft, of the rim elements, the rim constraining means being disposed at selected locations of the rim means.
Claim 25
Dependent Claim
72 words
An inertial energy storage rotor device for rotation about a shaft comprising, in combination, rim means carried on the shaft and comprised of a plurality of annular rim elements formed of essentially anisotropic material having substantial tensile strength along longitudinal axes thereof; and, rim constraining means for restraining radially outward movement, relative to the shaft, of the rim elements, the rim constraining means being disposed at selected locations of the rim means.
Claim 26
Dependent Claim
37 words
The inertial energy storage rotor device specified in claim 23 wherein said rim constraining means extends along a single diameter of the rotor device and its opposite ends hold said rim means only at two attachment points.
Claim 27
Dependent Claim
26 words
The inertial energy storage rotor device specified in claim 24 wherein the rim constraining means is a composite filament material wound diametrically about said rim means.
Claim 28
Dependent Claim
21 words
The inertial energy storage rotor device specified in claim 24 wherein said rim elements are fastened together at each attachment point.
References Cited (Backward Citations)
US1365473A
Cited
US1426339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |