US4244240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic internal flywheel gimbal
Assignee: Johns Hopkins University
•
Filing: 1976-12-17
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Granted: 1981-01-13
•
Expires: 1996-12-17
Abstract
Abstract An elastic joint mounting and rotatably coupling a rotary inertial energy storage device or flywheel, to a shaft, the present gimbal structure reduces vibration and shock while allowing precession of the flywheel without the need for external gimbal mounts. The present elastic joint usually takes the form of an annular elastic member either integrally formed into the flywheel as a centermost segment thereof or attached to the flywheel or flywheel hub member at the center thereof, the rotary shaft then being mounted centrally to the elastic member.
Inventors
- 👤 David W. Rabenhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:39
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/76; F16F; F16F15/00; F16F15/30; F16F15/315; F16F15/3153; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2117; Y10T74/2119
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
86 words
An inertial energy storage system wherein energy is put into the system and taken out of the system comprising in combination: an inertial energy storage flywheel rotor; a rotary shaft; and elastic joint means for mounting said flywheel rotor to said rotor shaft substantially central to said flywheel rotor, said elastic joint means permitting precessional movement of said flywheel rotor relative to said shaft, said precessional movement being relative angular displacement between the longitudinal axis of said shaft and the plane occupied by said flywheel rotor.
Claim 2
Dependent Claim
86 words
An inertial energy storage system wherein energy is put into the system and taken out of the system comprising in combination: an inertial energy storage flywheel rotor; a rotary shaft; and elastic joint means for mounting said flywheel rotor to said rotor shaft substantially central to said flywheel rotor, said elastic joint means permitting precessional movement of said flywheel rotor relative to said shaft, said precessional movement being relative angular displacement between the longitudinal axis of said shaft and the plane occupied by said flywheel rotor.
Claim 3
Dependent Claim
77 words
The apparatus of claim 1 wherein said flywheel rotor is formed with a central aperture extending axially therethrough and said disc member is also formed with a central aperture extending axially therethrough for receiving and mounting said shaft, said shaft also extending through said aperture in said flywheel rotor, the diameter of said aperture in said flywheel rotor being greater than the diameter of said shaft to allow precession of said flywheel rotor relative to said shaft.
Claim 4
Dependent Claim
19 words
The apparatus of claim 1 wherein said elastic joint means comprises a disc member formed of elastically deformable material.
Claim 5
Dependent Claim
43 words
The apparatus of claim 3 wherein said disc member has a central aperture extending axially therethrough for receiving and mounting said shaft therein, said disc member having a thickened portion about said central aperture which slopes toward the periphery of said disc member.
Claim 6
Dependent Claim
20 words
The apparatus of claim 4 wherein said disc member is formed with a thickened portion about the outer periphery thereof.
Claim 7
Dependent Claim
30 words
The apparatus of claim 5 further comprising mounting plate means connected to said disc member about the outer periphery thereof said mounting plate means being connected to said flywheel rotor.
Claim 8
Dependent Claim
39 words
The apparatus of claim 4 further comprising an annular mounting collar received within said central aperture formed in said disc member and fixed therein, said collar having a central aperture axially formed therein for receiving and mounting said shaft.
Claim 9
Dependent Claim
49 words
The apparatus of claim 3 wherein said disc member has a central aperture extending axially therethrough for receiving and mounting said shaft therein, the apparatus further comprising a mounting plate connected to said disc member about the outer periphery thereof, said mounting plate being connected to said flywheel rotor.
Claim 10
Dependent Claim
63 words
The apparatus of claim 8 wherein said mounting plate has a central aperture formed therein for receiving at least portions of said disc member therein, said disc member having a peripheral groove formed in the outer perimetric wall surfaces thereof, perimetric edge portions of said plate defining said central aperture therein being received and mounted within said peripheral groove in said disc member.
Claim 11
Dependent Claim
31 words
The apparatus of claim 8 wherein said mounting plate has flange means about its outer periphery which extends toward said flywheel rotor and mounts said flywheel rotor in spaced relation thereto.
Claim 12
Dependent Claim
70 words
The apparatus of claim 3 wherein said flywheel rotor is formed with a central aperture extending axially therethrough, said disc member being disposed within said central aperture of said flywheel rotor, said disc member also having a central aperture formed axially therein for receiving and mounting said shaft, outer perimetric surfaces of said disc member being mounted to inner wall surfaces of said central aperture formed in said flywheel rotor.
Claim 13
Dependent Claim
65 words
The apparatus of claim 3 wherein said disc member is formed with flanged washers about the upper and lower surfaces thereof, said disc member being formed with a central aperture for receiving and mounting the shaft, the apparatus further comprising plate means surmounting said washers and fixed to said shaft and a hub mounting plate mounted between said washers and being connected to said rotor.
Claim 14
Dependent Claim
49 words
The apparatus of claim 3 wherein said disc member is mounted to a central portion of said flywheel rotor, the apparatus further comprising plate means attached to said disc member over one face of said plate means, said plate means being attached on its other face to said shaft.
References Cited (Backward Citations)
CA544390A
Cited
US1157921A
Cited
US1701518A
Cited
US1854436A
Cited
US1778197A
Cited
US1962746A
Cited
US1928763A
Cited
DE687721C
Cited
US2207496A
Cited
US2164744A
Cited
US2312822A
Cited
US2366624A
Cited
US2562195A
Cited
US2668033A
Cited
US2766626A
Cited
US2585382A
Cited
US2702087A
Cited
US2841354A
Cited
GB826046A
Cited
US2969656A
Cited
US3079132A
Cited
US3245229A
Cited
US3140081A
Cited
US3430902A
Cited
US3670593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |