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:
Dec. 14, 2004
Filed:
Apr. 02, 2002
Yung-Tsun Hsieh, Changhua, TW;
BENQ Corporation, Taoyuan, TW;
Abstract
A magnetic hinge apparatus is applicable to a foldable product (such as folding cellular phone) for connecting the cover and the base. A practical application is provided by aligning two magnetic cams on a shaft. One magnetic cam is connected to the base, and the other is connected to the cover. Also, an attractive force is formed between the opposite surfaces of the two opposite magnetic cams. Before applying any external force on the foldable product, the convex portion of one magnetic cam completely engages the concave portion of the other magnetic cam. When the cover is opened, both magnetic cams are rotated relatively and then separated from the engaged position. When the cover keeps in opening, the convex portions of both magnetic cams are going to touch and then across each other; meanwhile, the magnetic force can attract two magnetic cams back to the engaged position. Accordingly, the foldable product secured by the magnetic hinge apparatus possesses the snap characteristic.