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 9168976 B1

Date of Patent:

Oct. 27, 2015

Filed:

Mar. 17, 2015

Cassette and bicycle wheel assembly

Applicant:

Praxis Works Llc, Aptos, CA (US);

Inventors:

David M. Earle, Watsonville, CA (US);

Ding-Jiun Lin, Taipei, TW;

David Allen, Capitola, CA (US);

Shih-Min Lin, Taichung, TW;

Assignee:

Praxis Works LLC, Aptos, CA (US);

Attorney:

Kolisch Hartwell, P.C.

Primary Examiner:

Ryan J Walters

Int. Cl.

CPC ...

B21D 53/28 (2006.01); B62M 9/10 (2006.01); B21D 53/86 (2006.01); B60B 31/00 (2006.01); B60B 27/04 (2006.01);

U.S. Cl.

CPC ...

B62M 9/10 (2013.01); B21D 53/86 (2013.01); B60B 27/04 (2013.01); B60B 31/005 (2013.01); Y10T 29/49462 (2015.01); Y10T 29/49465 (2015.01); Y10T 29/49481 (2015.01); Y10T 29/49506 (2015.01);

Abstract

A cassette for a bicycle may include a plurality of sprocket portions fused into a single unit. The cassette may include a cavity formed in the large end of the cassette. Spokes of an associated wheel may be at least partially disposed in the cavity. A related manufacturing method may include joining a first generally planar sprocket portion having a plurality of connector portions extending transverse to the plane of the first sprocket portion, to a second generally planar sprocket portion by fusing at least one of the connector portions to the second sprocket portion.

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