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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.:

US 8920585 B1

PDFFull Text
Date of Patent:
Dec. 30, 2014

Filed:

Aug. 06, 2012

Asymmetric bladder compression for elimination of lamination defects on progressive addition lenses

Applicants:

Haifeng Shan, Shrewsbury, MA (US);

Peiqi Jiang, Plano, TX (US);

Steven Weber, Carrollton, TX (US);

Inventors:

Haifeng Shan, Shrewsbury, MA (US);

Peiqi Jiang, Plano, TX (US);

Steven Weber, Carrollton, TX (US);

Assignee:

Essilor International (Compagnie Générale d'Optique), Paris, FR;

Attorney:

Gardere Wynne Sewell LLP

Primary Examiner:

Philip Tucker

Assistant Examiner:

Joshel Rivera

Int. Cl.
CPC ...
B32B 41/00 (2006.01); B29C 65/00 (2006.01); B29C 63/16 (2006.01); B29L 11/00 (2006.01); B29D 11/00 (2006.01); B29C 63/00 (2006.01); B30B 5/02 (2006.01); G02C 7/02 (2006.01);
U.S. Cl.
CPC ...
B29C 65/00 (2013.01); B29L 2011/0016 (2013.01); B29C 63/16 (2013.01); B29C 66/81455 (2013.01); B29D 11/0073 (2013.01); B29C 63/0073 (2013.01); B30B 5/02 (2013.01); G02C 7/024 (2013.01); B29C 66/45 (2013.01);
Abstract

A method and apparatus for elimination of lamination defects on progressive addition lenses. The lamination method uses a flexible bladder designed to apply pressure evenly across the lens surface. A spacer is positioned between a Hard Multi-Coat carrier and the flexible bladder. The spacer is located in a region of the carrier which is designated to deliver a coating to a section of the lens which is farthest from the carrier. The spacer asymmetrically increases the pressure applied to the carrier to eliminate lamination defects.

Find Patent Forward Citations

Shan, Haifeng. (2014). Asymmetric bladder compression for elimination of lamination defects on progressive addition lenses (U.S. Patent No. 8920585). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8920585

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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