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:
Mar. 08, 2016
Filed:
Dec. 29, 2014
Apple Inc., Cupertino, CA (US);
Lucy Elizabeth Browning, San Francisco, CA (US);
Masashige Tatebe, Kakogawa, JP;
Shi Hua Zhang, Wilmington, DE (US);
Michael W. Barnstead, Canton, CT (US);
Richard M. Bretherton, Portland, OR (US);
Takahiro Oshima, Tokyo, JP;
Sean A. Backs, Belmont, CA (US);
Duy P. Le, San Francisco, CA (US);
Andrew J. Meschke, San Jose, CA (US);
Thomas Johannessen, Fjerdingby, NO;
Apple Inc., Cupertino, CA (US);
Abstract
Manufacturing methods related to anodizing of metal parts are described. In particular, pre-anodizing and post-anodizing methods for forming a consistent and defect-free interface between metal and non-metal sections of a part are described. Methods involve preventing residues from various manufacturing processes from entering a gap or space at the interface between the metal and non-metal section of the part and that can disrupt subsequent anodizing and anodic film dyeing processes. In particular embodiments, methods involve forming a barrier layer or filler layer between the metal and non-metal sections. Portions of the barrier layer or filler layer can be removed prior to anodizing. The resultant part has a well-defined and uniform space between the metal and non-metal sections that is free from visual defects.