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 7320555 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 22, 2008

Filed:

Oct. 14, 2005
Applicants:

Cheng-chung Chang, Hsi-Chi, TW;

Yi-fei Yu, Keelung, TW;

Inventors:

Cheng-Chung Chang, Hsi-Chi, TW;

Yi-Fei Yu, Keelung, TW;

Assignee:

Sercomm Corporation, Miaoli County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 17/56 (2006.01); F16C 11/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cardan shaft structure with tightness adjustable functions has a through-hole passing through spheres located at both ends of the cardan shaft body, and a taper socket respectively installed into the opening end of each sphere. A bolt is inserted into both spheres and the body, fixed and locked together in conjunction with a nut. The cardan shaft structure works together with two clamping components wrapping around the spheres. When the sphere is being pushed against (or freed from) the inner wall of the clamping component by tightening (or loosing) the bolt so as to make the sphere either expand (or recover), the angle displacement of the clamping component becomes adjustable accordingly.


Find Patent Forward Citations

Chang, Cheng-Chung. (2008). Cardan shaft structure with tightness adjustable functions (U.S. Patent No. 7320555). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7320555

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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