SPRAG CLUTCH CASSETTE DRIVER

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

15481107

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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US Family Size
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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
THE UNIVERSITY OF NORTH FLORIDA BOARD OF TRUSTEES1 UNF DRIVE JACKSONVILLE FL 32224

International Classification(s)

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  • 2017 Application Filing Year
  • B60B Class
  • 575 Applications Filed
  • 431 Patents Issued To-Date
  • 74.96 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miller, Ryan Jacksonville, US 72 584
Polito, Marcus Jacksonville, US 1 0
Rillstone, Ryan Jacksonville, US 1 0

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  • 0 Citation Count
  • B60B Class
  • 0 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges541667101 - 1011 - 2021 - 300102030405060708090100110120130140150160170180

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