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:
May. 11, 2004
Filed:
Feb. 12, 2002
Chien-Chen Wu, Taichung, TW;
Other;
Abstract
A spring hinge structure includes a first hinge plate, a second hinge plate, and a restoring control device. The restoring control device includes an upper spindle mounted in the upper shaft tube of the first hinge plate, a lower spindle mounted in the lower shaft tube of the first hinge plate, and a spring mounted in the elongated shaft tube of the second hinge plate. A pair of juxtaposed T-shaped mounting rings made of composite plastic material are mounted between the upper shaft tube of the first hinge plate and the elongated shaft tube of the second hinge plate, and are mounted between the lower shaft tube of the first hinge plate and the elongated shaft tube of the second hinge plate respectively.