US5079461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply device for bicycles
Assignee: Individual
•
Filing: 1990-06-01
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Granted: 1992-01-07
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Expires: 2010-06-01
Abstract
Abstract A power supply device for bicycles is specified, in which a disk-shaped armature (44) is arranged in a fixed manner between permanent magnets (47, 48) rotating with the hub of a wheel. The armature is constructed as copper-coated insulating armature having conductor tracks in rotary current technology. Neither carbon brushes nor other wearing parts are present, so that a closed housing can be used (FIG. 1).
Inventors
- 👤 Gerd Schluter
- 👤 Hans-Jurgen Lipski
- 👤 Georg Schroder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:44
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/12; H02K21/24; B; B62; B62J; B62J6/00; B62J6/06; B62J6/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
An electrical power generator for use on a bicycle comprising; a fixed shaft having a bore therein; a disk-shaped armature mounted on said fixed shaft, said armature comprising a copper-coated insulating support with conductor tracks arranged thereon as a multi-pin rotary current winding having end terminals; a rotatable, closed bicycle hub forming a housing for said generator; a plurality of permanent magnets supported on said rotatable housing, said permanent magnets being magnetized in an axial direction of said shaft and being circularly arranged with alternating polarity so that the flux from said magnets passes through said armature; a current rectifier circuit; and conductor means connecting said end terminals of said rotary current winding through said bore in said shaft to said rectifier circuit.
Claim 2
Dependent Claim
123 words
An electrical power generator for use on a bicycle comprising; a fixed shaft having a bore therein; a disk-shaped armature mounted on said fixed shaft, said armature comprising a copper-coated insulating support with conductor tracks arranged thereon as a multi-pin rotary current winding having end terminals; a rotatable, closed bicycle hub forming a housing for said generator; a plurality of permanent magnets supported on said rotatable housing, said permanent magnets being magnetized in an axial direction of said shaft and being circularly arranged with alternating polarity so that the flux from said magnets passes through said armature; a current rectifier circuit; and conductor means connecting said end terminals of said rotary current winding through said bore in said shaft to said rectifier circuit.
Claim 3
Dependent Claim
13 words
A device according to claim 1 wherein said rectifier circuit includes germanium diodes.
Claim 4
Dependent Claim
35 words
A device according to claim 1 wherein said hub includes means defining annular grooves in an inner surface thereof, said generator further comprising; annular retainers peripherally mounted in said grooves and carrying said permanent magnets.
Claim 5
Dependent Claim
23 words
A device according to claim 1 wherein said hub includes a plurality of recesses and said magnets are mounted directly in said recesses.
Claim 6
Dependent Claim
26 words
A device according to claim 1 wherein said armature comprises two oppositely axially facing surfaces, conductor tracks being formed on said two oppositely axially facing surfaces.
Claim 7
Dependent Claim
31 words
A device according to claim 5 wherein said armature includes a plurality of disk-shaped plates having conductor tracks thereon, said plates being mounted in axially spaced relationship along said fixed shaft.
Claim 8
Dependent Claim
24 words
A device according to claim 6 wherein a plurality of said magnets are mounted between each two disk-shaped plates forming part of said armature.
Claim 9
Dependent Claim
31 words
A device according to claim 1 wherein said armature includes a plurality of disk-shaped plates having conductor tracks thereon, said plates being mounted in axially spaced relationship along said fixed shaft.
Claim 10
Dependent Claim
24 words
A device according to claim 8 wherein said plurality of said magnets are mounted between each two disk-shaped plates forming part of said armature.
References Cited (Backward Citations)
DE516221C
Cited
FR856493A
Cited
GB1132949A
Cited
US3604965A
Cited
US3806744A
Cited
US4228384A
Cited
DE3126150A1
Cited
EP0133571A2
Cited
FR2606951A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |