Patent US5390941A successfully refreshed from Google Patents.
US5390941A
Expired / Lapsed
US
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Power generator device particularly for wheeled sports implements
Assignee: Nordica SpA
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Filing: 1992-08-31
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Granted: 1995-02-21
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Expires: 2012-08-31
Abstract
Abstract A power generator for a roller skate including a support and wheels. The generator includes a fan associated with the wheel and adapted to generate an air flow conveyed by channels provided in the support.
Inventors
- 👤 Alessandro Pozzobon
- 👤 Bruno Borsoi
- 👤 Adolfo Pozzebon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:48
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/12; B; B62; B62J; B62J6/00; B62J6/06; B62J6/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A power generator device in combination with a wheeled sports implements, comprising: a substantially C-shaped rigid support having a pair of wings and a base interconnected between said wings; at least one wheel with a hub; a pin for rotatably supporting said at least one wheel between said wings of said rigid support; an item of footwear having a sole which is supported by said rigid support; at least one fan defined laterally on said hub of said at least one wheel; at least one channel defined in a shoulder which protrudes substantially at a right angle to said base of said rigid support, said channel being disposed for receiving an air flow created by said fan when said at least one wheel rotates, said channel extending through the entire thickness of said rigid support.
Claim 2
Dependent Claim
135 words
A power generator device in combination with a wheeled sports implements, comprising: a substantially C-shaped rigid support having a pair of wings and a base interconnected between said wings; at least one wheel with a hub; a pin for rotatably supporting said at least one wheel between said wings of said rigid support; an item of footwear having a sole which is supported by said rigid support; at least one fan defined laterally on said hub of said at least one wheel; at least one channel defined in a shoulder which protrudes substantially at a right angle to said base of said rigid support, said channel being disposed for receiving an air flow created by said fan when said at least one wheel rotates, said channel extending through the entire thickness of said rigid support.
Claim 3
Dependent Claim
27 words
The combination of claim 1, wherein said hub and said fan are provided in a shaped seat formed on one of said wings of said rigid support.
Claim 4
Dependent Claim
47 words
The combination of claim 1, wherein said channel has a conical shape having an apex directed toward said base of said rigid support, and further comprising a turbine with an electric power generating shaft, said turbine being disposed above said channel for receiving the air flow therefrom.
Claim 5
Dependent Claim
40 words
The combination of claim 1, comprising a pair of fans each arranged at mutually opposite sides of said hub, and a pair of channels each defined in a respective shoulder which protrudes substantially at a right angle to said base.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-20 | 1998-08-22 | 1999-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-20 | 2002-08-22 | 2003-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-20 | 2006-08-22 | 2007-02-21 | $7700.00 | Window Closed / Lapsed |