High efficiency bicycle hub
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 1, 2013
Grant Date -
Feb 21, 2013
app pub date -
Oct 19, 2012
filing date -
Apr 3, 2008
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.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F16D Class
- 0 % this patent is cited more than
- 12 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 1, 2025 |
