SPRAG CLUTCH CASSETTE DRIVER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Apr 6, 2017
filing date -
Apr 6, 2016
priority date (Note) -
Published
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A sprag one-way clutch (OWC) used within a cassette driver of the rear hub assembly of a bicycle. The new cassette driver delivers improved performance the reduction of rotation of the crank arm required before engagement within the cassette driver when the cyclist applies force to the pedals. Additionally, the sprag clutch smooth engagement minimizes friction loss during free-wheeling, therefore increasing drivetrain efficiency. These enhancements provide both safety and performance benefits by giving the cyclist greater control in moving between pedaling and free-wheeling. The current cassette driver design utilizes a sprag OWC for engagement without any modifications to current bicycle designs. A sprag cage may be used to provide a framework to support and properly position the sprags.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THE UNIVERSITY OF NORTH FLORIDA BOARD OF TRUSTEES | 1 UNF DRIVE JACKSONVILLE FL 32224 |
International Classification(s)

- 2017 Application Filing Year
- B60B Class
- 575 Applications Filed
- 431 Patents Issued To-Date
- 74.96 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Miller, Ryan | Jacksonville, US | 72 | 584 |
# of filed Patents : 72 Total Citations : 584 | |||
Polito, Marcus | Jacksonville, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Rillstone, Ryan | Jacksonville, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B60B Class
- 0 % this patent is cited more than
- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 12, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 12, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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