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.

Date of Patent:
Oct. 22, 2013

Filed:

Dec. 30, 2010
Applicants:

Zhen-xing Liu, Shenzhen, CN;

Da-wei Liu, Shenzhen, CN;

Inventors:

Zhen-Xing Liu, Shenzhen, CN;

Da-Wei Liu, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 1/25 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotary joint includes a shaft, at least one input member defining an input hole rotatably sleeved on the shaft, and a plurality of sealing members positioned between the shaft. the at least one input member and an output member are fixed on the shaft. The shaft, the at least one input member, and the sealing members defines a circular channel cooperatively communicating with the input hole. The output member defines at least one output hole corresponding to the input member. The shaft defines at least one transmission hole intercommunicating the at least one output hole and the circular channel.


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