US4346777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor unit for bicycles
Assignee: ITALIANA CATENE CALIBRATE REGINA SpA Soc
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Filing: 1979-03-12
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Granted: 1982-08-31
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Expires: 1999-03-12
Abstract
Abstract A motor unit for bicycles, characterized by the fact that it comprises a central axle for fitting to the fork of a bicycle, on which axle is rotatably supported a substantially cylindrical body adapted to form the hub of a wheel, there being fitted within said body and to the central axle the stator of a discoid rotor electric motor connected to the body by a kinematic transmission.
Inventors
- 👤 Amedeo A. Restelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:49
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/20; B60L15/2072; B60L15/2081; B60L50/00; B60L50/20; B62; B62M; B62M11/00; B62M11/02; B62M11/04; B62M11/14; B62M11/16; B62M6/00; B62M6/40; B62M6/60; B62M6/65; H; H02; H02K; H02K15/00; H02K15/02; H02K15/03; H02K15/12; B60L2200/00; B60L2200/12; B60L2200/18; B60L2220/00; B60L2220/10; B60L2220/14; B60L2220/16; B60L2220/40; B60L2220/44; B60L2240/00; B60L2240/40; B60L2240/50; B60L2240/507; B60L2260/00; B60L2260/20; B60L2260/22; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A motorized wheel for a bicycle comprising in combination: a. a hollow substantially symmetrical and substantially cylindrical hub body rotatably supported on a central axle adapted to be fixedly mounted on a fork of a bicycle; b. a stator including discoid portion fixed to said central axle within said hub body; c. a discoid rotor rotatably supported between said discoid portions within said hub body; d. a kinematic transmission including a plurality of gears rotatably mounted within said hub body and a driven member fixed to said hub body and in driving engagement with one of said gears; e. said transmission including an electromagnetic clutch which connects said discoid rotor through said plurality of gears and said driven member to said hub body to move said hub body in rotation; f. spokes connected between said hub body and a wheel rim to rotate said wheel rim with rotation of said hub body.
Claim 2
Dependent Claim
152 words
A motorized wheel for a bicycle comprising in combination: a. a hollow substantially symmetrical and substantially cylindrical hub body rotatably supported on a central axle adapted to be fixedly mounted on a fork of a bicycle; b. a stator including discoid portion fixed to said central axle within said hub body; c. a discoid rotor rotatably supported between said discoid portions within said hub body; d. a kinematic transmission including a plurality of gears rotatably mounted within said hub body and a driven member fixed to said hub body and in driving engagement with one of said gears; e. said transmission including an electromagnetic clutch which connects said discoid rotor through said plurality of gears and said driven member to said hub body to move said hub body in rotation; f. spokes connected between said hub body and a wheel rim to rotate said wheel rim with rotation of said hub body.
References Cited (Backward Citations)
US572036A
Cited
GB191105870A
Cited
FR746976A
Cited
CH199361A
Cited
CH257924A
Cited
FR1021263A
Cited
DE2743649A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-30 | 1986-03-01 | 1986-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-30 | 1990-03-01 | 1990-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-30 | 1994-03-01 | 1994-08-31 | $7700.00 | Window Closed / Lapsed |