High efficiency bicycle hub
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 20, 2012
Grant Date -
Oct 7, 2010
app pub date -
Apr 3, 2009
filing date -
Apr 3, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A high efficiency bicycle hub for near frictionless free wheeling comprising a hub having a toothed engagement ring, a driver having a retractable engagement member that can engage and disengage from the hub, and a retraction device to facilitate a disengaged configuration. The retraction device comprises a retaining ring having retraction members and the retractable engagement member comprises reciprocal retraction members to “catch” the retraction member to maintain a disengaged configuration. In use, forward rotation of the driver engages the retractable engagement member with the toothed engagement ring of the hub to drive the hub. Reverse rotation of the driver rotates the reciprocal retraction members underneath or behind the retraction member thereby disengaging the driver from the hub.
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