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.:
Date of Patent:
Feb. 12, 2008
Filed:
Sep. 28, 2004
Yong-jian Chen, Shenzhen, CN;
Xing-bing Zou, Shenzhen, CN;
Yong-Jian Chen, Shenzhen, CN;
Xing-Bing Zou, Shenzhen, CN;
Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Bao-an District, Shenzhen, Guangdong Provience, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A hinge assembly () includes a shell (), a coil spring (), a shaft (), and two bolts (). The shell defines a cavity () therein, with one end of the shell being closed and the other end being open. Two holes () are defined in the shell near the open end. The shaft includes a cam (), a soleplate (), and an interconnecting neck (). The cam includes a cam surface () at one end thereof, the cam surface including peaks and valleys. The spring and the shaft are received in the shell, but with the soleplate exposed outside. The spring biases the cam surface against the bolts no matter what part of the cam surface abuts the bolts. Because the hinge assembly of the present invention is effectively an integrated, modular structure, it is easily incorporated into a portable foldable device such as a mobile phone.