Patent · US Active

Bicycle bottom bracket

US9004771B2 · kind B2 · utility

3Cited by

6References

25Claims

0Family size

Assignee

PRAXIS WORKS LLC · US

Inventors

David M. Earle · Baldwinsville, US
Chin-Tai Chuang · Taipei, TW

Key dates

Filing date	Apr 23, 2013
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Oct 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49696
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An improved bicycle bottom bracket system and methods of manufacturing and installing such a system. The improved system may include bearings mounted within bearing cups on either side of the bottom bracket shell of a bicycle frame. The bearing cups may be threaded together, and one bearing cup may include a collet portion expandable by the other bearing cup.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.