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:
Apr. 13, 2004
Filed:
Dec. 31, 2002
Wente Lai, Tu-chen, TW;
Hon Hai Precision Ind. Co., Ltd., Taipei Hsien, TW;
Abstract
A method of manufacturing a perforated metal cover ( ) includes steps of: step ( ), successively punching holes in a piece of metal sheet at a plurality of workstations and cutting the metal sheet into a plurality of metal bases; step ( ), stamping the metal bases into three dimensions; step ( ), grinding the metal bases; and step ( ), anodizing the metal bases to produce the finished covers. Each workstation includes at least one punch, and each punch includes a die having a plurality of punch heads, which number and arrangement are predetermined according to the holes ( ) to be formed in the perforated cover. Different arrays of holes are punched in the metal sheet in different punches.