The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8117923 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 21, 2012

Filed:

May. 08, 2009
Applicant:

Bungo Sasaki, Osaka, JP;

Inventor:

Bungo Sasaki, Osaka, JP;

Assignee:

Shimano Inc., Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 5/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A bicycle bottom bracket force sensor includes an outer portion, an inner portion, at least one sensor mounting surface and a strain gauge. The inner portion is dimensioned to receive and support a crank axle bearing that rotatably supports a crank axle. The at least one sensor mounting surface extends between the outer portion and the inner portion has the strain gauge fixed thereto. The sensor mounting surface extends in a direction substantially perpendicular to a rotation axis of the crank axle when the force sensor is coupled to the bicycle bottom bracket.


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